Merged with CSRTI Mysore.
Pampore-Projects
Mulberry Breeding and Genetics
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative performance of exotic varieties under rainfed conditions.
Personnel : Iyengar MNS, Sumbli SN
Project Period :1973-1978
Objectives :To find out the comparative performance of different mulberry varieties under rainfed conditions.
Results/Recommendation :Six popular mulberry varieties viz., Goshoerami, Limoncina, Kokusu-27, Ensatakasuke, Kokusu-27 and Rokokuyoso were used for the experiment in order to assess their suitability for thriving better under rainfed conditions.
Sl.No.
Variety
Spring
Autumn
Total yield
1
Goshoerami
7,038.1
4,206.0
11,244.2
2
Limoncina
6,365.1
4,206.0
10,571.2
3
Kosuga
5,832.4
3,645.2
9,477.6
4
Ensutakasuke
4,963.1
3,645.2
8,608.4
5
Koksu-27
7,206.4
3,925.6
11,132.0
6
Rokokuyoso
5,327.6
3,645.2
8,972.9
The above data show that Goshoerami, Kokusu-27 and Limoncina are superior over other varieties and they can be cultivated in Kashmir under rainfed conditions easily.
Source of Information :Annual Report 1974-75, 1977-78
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Collection, conservation, evaluation and maintenance of mulberry germplasm bank.
Personnel :Gupta BK, Sumbli SN, Baksh S, Mir MR, Darzi GM, Mir SM, Sahai V, Thippeswamy T, Rajinder Kour, Mohd Shafi Ganayee, Dhingra RK, Srivastava VB, Gupta YK, Juyal AC, Rajat Mohan, Singh PK, Ramakanth, Saraswath SB, Md Isa, Pradeep Shukla, Chakrabarti S
Funding Source :Ministry of Foreign trade and supply
Project Period :1973-2005
Objectives: To collect, conserve and to evaluate the mulberry germplasm bank to use for breeding programs
Results/Recommendation :Presently 64 accessions (including exotic, indigenous and evolved) are being maintained in the active germplasm containing to the needs of mulberry breeders of different institutions as a source of genetic material. Evaluation for different productive parameters including foliar disease resistance was also considered for all the accessions.
Source of Information :Annual Report:1973-2005
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the comparative performance and feeding quality of leaves of some promising varieties under rainfed conditions.
Personnel : Dhar KL, Sumbli SN, Misri SS.
Project Period :1975-1977
Objectives :To find out the comparative quality effect on the silkworms of different mulberry varieties.
Results/Recommendation :In respect of some important cocoon characters indicate that the variety Kokusu-27 is giving very promising results compared to other varieties.
Source of Information :Annual Report 1975-76
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Selection of high yielding and early sprouting mulberry varieties.
Personnel : Sahai V, Thippeswamy T
Project Period :1978-1983
Objectives :To assess the final leaf yield trial of selected varieties in random blocks prior to confirm their identity as suitable varieties for further propagation and popularization.
Results/Recommendation :S146 and C776 are best suited to this region while the other two varieties i.e., S1531 and C799 are also among promising ones.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on progeny row-yield trial
Personnel : Sahai V, Thippeswamy T
Project Period :1979-1982
Results/Recommendation :Maximum number of leaves per meter length were recorded in S115 and S82 varieties varying from 26 to 33. Least number of leaves per meter was recorded with varieties S64, S96 and S117 varying between 17 and 20. Much variation is seen regarding length of petiole and area of leaves among the plants of same variety, so also with other varieties.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on inflorescence behaviour of different mulberry varieties in sericultural states of India.
Project Period :1980-1981
Objectives :Studies on sex behaviour and time of incidence of inflorescence in different mulberry varieties.
Results/Recommendation :Phyllotaxy of mulberry branches has been studied, it reflects the leaf yield particularly with respect to number of leaves per branch. These are absolutely genetical characters of particular strains of mulberry, hence useful for classification of mulberry varieties. Phyllotaxy of different mulberry varieties so far recorded are ranked as 1/5, 2/5 and 1/2. Besides these ranks in the present study certain mulberry varieties found having rank of 1/3.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on sex behaviour of plants of different mulberry varieties.
Project Period :1980-1981
Objectives :To observe the inter and intra varietal variation of sexes of existing mulberry varieties in germplasm bank.
Results/Recommendation :It was noted that mulberry varieties having maximum number of catkins per branch are Ensatakasuke followed by Senmatsu and Ichihei. Maximum weight of individual female catkin recorded in Kokusu-20 followed by Senmatsu. Similarly average maximum weight of individual female catkin was recorded in varieties like Ensatakasuke, KNG and Ichinose.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on improvement of mulberry.
Personnel :Chakrabarti S, Fotadar RK
Project Period :1982-1983
Objectives :To improve mulberry varieties in univoltine areas by adoption of selection hybridization and suitable breeding programme.
Results/Recommendation :Under this programme improvement is carried out by selection from seedlings raised from open pollinated as well as hybridization.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on seedling selection from open pollinated hybrid.
Project Period :1982-1983
Objectives :To select seedlings from open pollinated hybrids.
Results/Recommendation :About 157 open pollinated seedlings were planted under this experiment during this year are performing well. The age of the seedlings is 3 years.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on seedling selection from controlled pollinated hybrids.
Project Period :1982-1983
Objectives :To evolve a mulberry variety rich in nutritive value for silkworm, high yielding and disease resistant by controlled pollinated hybrid seeds obtained from intervarietal crossings.
Results/Recommendation :100 seeds of each crosses (Rokokuyoso female x KNG male, Limoncina female x Ichinose male, Limoncina female x KNG male) in each replication were taken for germination. One set were directly sown in earthen pots containing sand; soil and FYM (1:1:1) and other set of seeds were germinated in petridish. Each set contain three replications. Seeds of different combinations were germinated in petridish as well as earthen pots. Though all the seedlings are in Juvenile stage, but combination like Rokokuyoso x Ichinose and Limoncina x Ichinose are found to be having comparatively luxuriant growth.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of an early sprouting mulberry variety.
Personnel : Bakshi RL
Project Period :1982-1984
Objectives: To evaluate early sprouting mulberry varieties.
Results/Recommendation : Collected some 250 cuttings of selected early sprouting mulberry plants from in and out of the mulberry farm. The cuttings showed 70% survival and are being maintained to screen out earliest sprouting plants.
Source of Information :Annual Report:1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on evaluation of mulberry varieties.
Personnel :Pande VK, Srivastava VB
Project Period :1985-1986
Objectives :To isolate the most viable mulberry varieties for Bahraiah zone.
Results/Recommendation :Data reveals that China white recorded highest survival rate (82.80%) followed by TR10 (77.61%) and S146 (80%). However above varieties shall be tried on large scale basis replacing the old low survival local varieties.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of improved varieties of mulberry through open pollinated hybrids and hybridization.
Project Period :1985-1986
Objectives: To study/evaluate the improved varieties of mulberry raised through open pollination and by hybridization.
Results/Recommendation:
· Through open pollinated hybrids: This year 30 selections out of 5,000 F1 populations have been isolated and would be evaluated for various growth and yield parameters.
· Through hybridization: Through controlled breeding a few hybrids have been raised involving the following mulberry varieties: Limoncina, Ichinose, KNG and Rokokuyaso. The F1 obtained have yet to produce inflorescence.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Experiments on rooting behaviour of some exotic mulberry varieties.
Project Period :1985-1986
Objectives :To study the rooting behaviour of 5 exotic mulberry varieties, with hormone treatment.
Results/Recommendation :IBA for rooting has not shown any significant results. Highest survivability was recorded in case of Chinese white followed by Rokokoyaso and Goshoerami. The survived cuttings after final observations were transplanted into beds.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of mulberry varieties in relation to rearing seasons.
Project Period :1985-1986
Objectives :To popularize the varieties extensively both at a farm as well as in field.
Results/Recommendation :Goshoerami has performed very well with regard to its quality and quantity of leaf, which remains available upto middle of November, because of its late sprouting behaviour. This variety could be extensively used during summer and autumn crops.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Multilocational trials for new genetic materials of plants and silkworms received from Research Station.
Project Period :1985-1986
Results/Recommendation :As per the data collected it was observed that the cuttings of Goshoerami, KNG, Ichinose and Rokokuyaso perished away about thirty cuttings of Chinese white survived and sprouted.
Source of Information :Annual Report:1984-85
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Improvement of mulberry genotypes through hybridization.
Personnel :Fotadar RK, Baksh S, Sulochana Durani, Mukherjee P
Project Period :1990-1991
Objectives :To evolve/introduce/improve mulberry strains for their higher productivity, good rootability and region specific traits.
Results/Recommendation :Under tropical x temperate 6 crosses were made viz., K2 x Okinowa, K2 x Chinese white, Chinese white x S41, Chinese white x S13, Sujanpur x Okinowa, Sujanpur x Chinese white.
Under temperate x temperate 2 crosses were made viz., Chinese white x Kosen, Rokokoyaso x Chinese white. The seeds from these crosses will be shown in the month of June to raise F1 hybrids and subsequently the selection will be made.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of mulberry genotypes through evaluation of colchiploids.
Project Period :1990-1991
Objectives :Triploids are expected to bring about improvement in the quality of mulberry leaf.
Results/Recommendation :Cuttings of four tetraploids namely T1, T7, T19 and T21 along with some diploids have been procured from CSR&TI, Berhampore during December 1990 and planted in nursery beds at Miransahib. The tetraploids are envisaged to be used in evolving triploids by crossing them with diploids.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Maintenance of genes and genotypes.
Project Period :1990-1991
Objectives :To establish a gene pool under the sub-tropical conditions of Jammu.
Results/Recommendation :Maximum leaf yield was recorded in variety Togowase followed by Goshoerami in both the seasons among exotic varieties. However, the gap in the indigenous varieties for length of the branches was far less than the exotic varieties indicating faster rate of growth in the indigenous varieties. Almost similar trend were observed for plant heights as well.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on rooting performance of seven promising mulberry varieties under the sub-tropical conditions of Jammu.
Project Period :1990-1994
Objectives :To study the rooting performance of promising mulberry varieties under Jammu conditions.
Results/Recommendation :The results are in confirmation of earlier findings. The studies on rooting of seven varieties was also taken up and the data generated revealed the rooting of 25% in Berhampore, 41.93% in Chinese white, 42.72% in S41, 43.73% in Chakmajra, 56.70% in Kanva2, 58.33% in Mandalaya and 61.91% in Sujanpur.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of inbred lines.
Project Period :1990-1991
Objectives :To evolve inbred lines involving two varieties namely, Chinese white and Chakmajra which are represented by both sexes.
Results/Recommendation :As a first step, selfing has been effected to obtain seeds for raising first generation. It will involve 6-7 generations of successive inbreeding before the inbred are developed.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on improvement of mulberry.
Personnel : Baksh S, Koul S, Bindroo BB
Project Period :1990-1993
Objectives :Evolution of mulberry hybrids with better rooting ability.
Results/Recommendation :From a selection of 19 open pollinated hybrids raised in 1990, a total of 11 OPH plants on desirable crosses morphological features were selected for further evaluation. Genotypes MS1 and MS8 exhibited significantly good rooting potential (80%) but statistically not different from the potential as shown by MS2, MS3, MS5, MS9, MS10 and MS11.
Source of Information :Annual Report:1992-93
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative evaluation of seven popular mulberry varieties under the sub tropical conditions.
Project Period :1991-1994
Objectives :To evaluate best mulberry variety under tropical conditions.
Results/Recommendation :Significant differences have been recorded in most of the characters in both the seasons. Variety Chakmajra exhibited maximum number of shoots/plant in both the seasons. Other characters varied from variety to variety and from season to season. Chakmajra proved significantly superior over the other varieties during spring and Mandalaya during autuman.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of mulberry genotypes under rainfed conditions.
Personnel :Mohd Shafi Ganayee, Baksh S
Project Period :1991-1997
Objectives :To evaluate different mulberry genotypes under rainfed conditions.
Results/Recommendation: The moisture content was assessed in spring and autumn seasons of 1996. For this purpose, one sample consisting of 100 mixed leaves (tender, medium and coarse) of each treatment from each replication was taken. Goshoerami, tree and dwarf were significantly higher than the rest of the treatments in spring. In autumn moisture content (75.19%) in T8 which was significant over T1, T2 and T5.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :All India Coordinated Experiment.
Personnel : Rajinder Kour, Sadaf Nazir
Project Period :1993-1995
Objectives :To screen certain mulberry varieties for different regions.
Results/Recommendation :2,70,100 cuttings of different promising mulberry varieties were supplied to State Sericulture Development Department, Kashmir for further multiplication for supply to the farmers. 2000 saplings of Chinese white were also supplied to local rearers.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on improvement of mulberry.
Personnel : Bindroo BB, Anil Dhar, Priya Ranjan
Funding Source :CSB, Bangalore
Project Period :1994-1997
Objectives :
· To know the area specific mulberry genotypes based on their rooting performance.
· Selection of promising genotype from existing germplasm mulberry varieties.
Results/Recommendation :On the basis of mulberry propagation studies carried out in different areas of Jammu province, area specific genotypes, as regards, their propagation through cuttings are suggested. Two explorations namely Exp. 9404 and Exp. 9406 have been identified as good rooting genotypes for sub-tropical areas.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on identification of mulberry varieties with better rootability.
Personnel :Anil Dhar, Koul S, Bindroo BB
Project Period :1994-1997
Objectives :To propagate the Japanese genotypes rapidly, by using the good rooters as stock .
Results/Recommendation :The sprouting was recorded after 15 days of planting and ranged between 77.77% in Sujanpur to 90.87% in Badthal. The mean rooting of 57.53% was also highest in Badthal where no significant difference in rooting has been noticed in six test genotypes. Chinese white has been found to be significantly superior in rooting
Overall other genotypes at Udhampur (with 75.0%) and at Sujanpur (with 49.17%); whereas S146 recorded significantly superior rooting at Rajouri (with 75.0%) and at Jammu (63.88%).
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Evaluation of mulberry germplasm for leaf yield and its attributes.
Personnel : Baksh S, Mir MR
Project Period :1994-1995
Objectives :To evaluate the mulberry germplasm for leaf yield and its attributes.
Results/Recommendation :The mulberry germplasm bank, Pampore consists of 67 genotypes which are maintained in separate beds as dwarf under rainfed conditions. The mean leaf yield per plant was highest in Goshoerami (4.138 kg) being significant over rest of the varieties. The other varieties with good yield were Rokokuyaso (2.890 kg), Togowase (2.898 kg), Kokuso21 (2.672 kg), C4 (2.734 kg), Kairyoroso (2.338 kg), KNG (2.746 kg) and TR8 (2.246 kg) with the differences among them being non-significant.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of rooting ability of shoot tips of mulberry in green house.
Project Period :1995-1996
Objectives : To study the rooting ability of mulberry raised from shoot tips under green house condition.
Results/Recommendation :
· The tender shoots went into dormancy in 2nd fortnight of November, 1995 and remained dormant till mid February. After that they began to sprout and completed their maximum sprouting by mid of April 1996. It was maximum in S1 (63.89%) and lowest in Ichinose (2.78%) and KNG (1.39%). Subsequently there was drying of leaves as well as the tender shoots.
· By 15th of May only in two genotypes there was some survival 11.11% in S1 (Acc-48) and 27.78% in Goshoerami. There was decline in survival in subsequent fortnights and by the end of June 1996, the tender shoots of all the genotypes dried. The experiment was again laid out using the tender shoots of Chinese white S1 (Acc.48), TR10, Rokokuyoso and Goshoerami. But this time also they all withered away by the end of the month.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of mulberry under temperate climatic conditions-Identification of good rooters.
Personnel :
Project Period :1995-1998
Objectives :To propagate the popular Japanese varieties rapidly by using the good rooters as stock.
Results/Recommendation :The success rate was 45.83%. The technique has been improved in spring 1998 and as a result, 75% of grafts of Goshoerami made on hardwood stem cuttings of one of the good rooters have been successful. By this method the overall time needed for obtaining established plants in field can be reduced to two years. Field workers of the Institute have also been trained in the technique.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of rooting ability of hard wood stem cuttings of poor rooters in green house.
Personnel :
Project Period :1995-1996
Objectives :To identify the ability of rooting of the hard stem cuttings of poor rooters in green house.
Results/Recommendation :72 hard wood stem cuttings of Chinese white were planted in open field. They remained dormant during winter and began to sprout in second fortnight of March. The observations recorded 48.61% survival of cuttings (rooting ability).
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of rooting ability of hard wood stem cuttings under natural field conditions.
Personnel : Baksh S, Mir MR, Darzi GM, Mir SM
Project Period :1996-2002
Objectives :To explore the possibility of raising of saplings in the field.
Results/Recommendation :Propagation of genotype Chinese white through hardwood stem cutting was tried during winter. The saplings continued to grow till the end of October 2001, the growth was negligible in the 2nd fortnight of October, 2001. However, the mean height attained by the saplings was 2.04 m. The frequency distribution of sapling height revealed more than 85% of saplings with one meter and above in height.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Identification of early sprouters vis-a-vis availability of leaf.
Personnel :Baksh S, Mir MR, Darzi GM
Project Period :1996-1998
Objectives :To explore the possibility of advancing the spring rearing and as a consequence, avoid the over lapping between sericultural and agricultural operations which generally occurs at present.
Results/Recommendation :All the 67 genotypes maintained in the germplasm bank were observed to find out their sprouting pattern. The genotypes exhibited considerable differences among themselves in this regard. Further, visual observations on uniformity of sprouting showed simultaneous sprouting in 43 genotypes and non-simultaneous in the remaining genotypes. The leaves of the late sprouters (Goshoerami, Kairyoroso, Ichinose, KNG and Togowase) were smaller as compared to early sprouters (Chinese white, C4, TR8, TR10 etc) but they grew faster in subsequent weeks with genotypes Goshoerami, Kairyoroso and Togowase attaining bigger size than that of early sprouters by first week of May 1997. The leaves of KNG and Ichinose were comparable to C4 and TR10 but bigger than Chinese white and TR8.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Preliminary evaluation of good rooting genotypes under rainfed conditions.
Personnel : Baksh S, Mir MR, Darzi GM
Project Period :1996-1999
Objectives : To evaluate good rooting genotypes under rainfed conditions.
Results/Recommendation :
· The mean values on survival of three years revealed that there was 100% survival in Acc.48 and Goshoerami. In rest of the genotypes, it ranged from 80.00% (Chinese white) to 97.78% (C4).
· In each of the three years, the incidence of stem canker, twig blight and bud blight were found in all the good rooters.
· In Goshoerami on the other hand, these diseases were not found during the initial two years of establishment, but in 1998-99 twig blight occurred though the severity was very low. The stem canker and twig blight were the visible cause of drying and mortality of plants of good rooting genotypes.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of mulberry genotypes for cultivation as trees-Evaluation of mulberry genotypes in terms of morphological agronomical parameters.
Personnel : Baksh S, Mir MR, Darzi GM
Project Period :1997-2001
Objectives :To screen mulberry genotypes for morphological ad agronomical parameters.
Results/Recommendation :
Morphological characters: Fruit set occurs in all the monoecious and those bearing only female flowers during spring season. Abundant fruit set is found in Acc.75, Acc.78, Acc.84, Acc.91 and Acc.92. In others, it is moderate or less. In most of the genotypes, fruit ripening takes place during 3rd and 4th week of May but in Acc.28 (Limoncina) fruits ripen during 1st and 2nd week of June.
The colour of the ripe fruit is black, in most of the genotypes while it is grey in Acc.8, Acc.28, Acc.45, Acc.73, Acc.82 and Acc.92, in Acc.75, it is pink.
Agronomical parameters: Data on genotypes (Acc.1, Acc.8, Acc.9, Acc.28, Acc.71, Acc.72, Acc.73 and Acc.74) showed significant differences in respect of parameters except length of longest shootlet, mean length of shootlet, leaf shoot ratio and moisture content.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on leaf shedding, cold resistance and sprouting of winter buds.
Personnel :Mir MR, Baksh S, Darzi GM
Project Period :1997-2001
Objectives :To study leaf shedding, cold resistance and sprouting of winter buds in the genotypes of germplasm .
Results/Recommendation :All the genotypes showed sprouting ranging from 25.34% in Acc.1 to 82.83% in Acc.73 and the difference between the two being highly significant. The sprouting in all the genotypes increased gradually and touched the maximum by the end of 3rd week of April and remained the same thereafter ranging from 78.18% in Acc.1 to 93.54% in Acc.73.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of mulberry genotypes suitable for eco-zones of Uttar Pradesh-Identification of mulberry genotypes suitable for plantation at different pH levels of various eco-zones of Uttar Pradesh.
Personnel : Dhingra RK, Singh PK, Sardar Singh, Sumbli SN, Singh BD
Project Period :1997-2005
Objectives :To identify mulberry genotypes suitable for waste (degraded/alkaline) lands with different pH level in different eco-zones of Uttar Pradesh.
Results/Recommendation :15 mulberry genotypes viz., S36, S54, S13, S34, K2, BC259, TR10, TR8, S1635, S1531, C799, C776, Chakmajra, S1 and S146 were screened at three locations in Uttar Pradesh and Uttaranchal.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of mulberry genotypes suitable for ecozones of Uttar Pradesh and Uttaranchal.
Personnel : Rajat Mohan, Juyal AC, Ramakant, Singh PK, Singh BD, Chakrabarti S, Sumbli SN, Dhingra RK
Funding Source :CSB, Bangalore
Project Period :1998-2004
Objectives :To identify suitable mulberry genotypes for plantation in different ecozones of UP and Uttaranchal.
Results/Recommendation :
· Leaf yield data collected under rainfed conditions showed that S146 gave highest leaf yield (15.72 tons/ha) in 2 harvests in doon valley of Uttaranchal. The highest leaf yield was 6.69 tons/ha in AR14 followed by AR12 (6.26 tons/ha) and S1635 (6.20 tons/ha) in 2 harvests. The leaf yield was reduced in all genotypes grown in sodic soils in comparison to the yield in normal soils of Dehradun and Gorakhpur.
· The data showed that leaf yield was highest in S146 (14.35 tons/ha) followed by S13, S34, S1635, TR10, BC259 and K2 in 2 harvests in rainfed conditions and are suitable for plantation in Tarai region of Uttar Pradesh.
· S146 gave the highest leaf yield so it is recommended for plantation in Doon valley foothills of Uttaranchal. AR14 and AR12 are recommended for plantations at high pH and low electric conductivity (pH:9-9.75 & EC:0.4-0.8 dsm)
Project outcome : S146, AR14, AR12 varieties have been found suitable and recommended for high pH and low electric conductivity areas.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of rooting ability of hardwood stem cuttings of three exotic genotypes in summer season.
Personnel : Baksh S, Dar ZA, Mir SM, Darzi GM, Mir MR
Project Period :1998-1999
Objectives :To test the rooting ability of hardwood stem cuttings of three exotic genotype during summer.
Results/Recommendation :
Sprouting: The mean sprouting was 90% in Acc.65, 100% in Acc.68 and 99% in Acc.69.
Rooting: The survival of saplings after 60 and 180 days was taken as rooting ability of respective genotypes. After 60 days of planting 100% survival in Acc.65, 95% in Acc.69 and 83% in Acc.65 was recorded. There was no mortality in the saplings except just one in Acc.65 between 60 and 180 days.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative evaluation of good rooting genotypes as trees in terms of leaf yield and quality under rainfed conditions in Kashmir.
Personnel :Baksh S, Mir MR, Dar ZA, Darzi GM
Project Period :1998-2004
Objectives :To screen suitable good rooting genotypes as trees under rainfed conditions in Kashmir.
Results/Recommendation :The experimental plantation was maintained under rainfed conditions. Cultural operations consisting of three diggings followed by weeding and basin making around the individual trees were done. As a control of stem blight and stem canker diseases which affect all the genotypes, Dithane M45 (0.25%) was sprayed twice, first after basal pruning in the first fortnight of June 2004 and second in the 1st week of December.
Source of Information :Annual Report:1999-2004
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of improved mulberry genotypes suitable for late age rearing.
Personnel :
Project Period :1999-2000
Objectives :To determine the effect of improved mulberry genotypes on economic characteristics of silkworm Bombyx mori L.
Results/Recommendation : The mulberry genotypes viz. Rokokuyaso, Kokuso27, KNG, Ichinose and Chinese white were evaluated in spring and autumn rearing with genotype Goshoerami as control. Though economic characters were found to be significant at 1% level, none of the varieties under treatment showed any significant difference and Goshoerami (control) was found most suitable one.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of some promising genotypes for their performance as trees.
Personnel :Rajinder Kour, Sadaf Nazir
Project Period :1999-2004
Objectives :To maintain promising genotypes under package of practices in rainfed conditions.
Results/Recommendation :Goshoerami yielded the maximum leaf with highest weight and moisture content in both the crops. Significant differences were recorded in almost all the parameters studied. It is important to mention here that the plant experienced untimely snowfall during spring 2004 which caused a decline in leaf yield.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practices for mulberry tree cultivation under sub-tropical conditions of Jammu (J&K) - Evaluation of some promising genotypes for their performance as trees.
Personnel :Anil Dhar, Tripathi PM, Bindroo BB
Project Period :1999-2005
Objectives :To evaluate some promising genotypes for their performance as trees.
Results/Recommendation :Perusal of data collected during spring 2004 revealed that genotype S146 yields maximum leaf (4.998 kg/plant) with minimum leaf yield in S1 (2.230 kg/plant). The data recorded during autumn, 2004 season also revealed highest leaf yield (2.476 kg/plant) in S146 and a minimum leaf yield (1.176 kg/plant) in Chinese white. Regular cultural operations were attended as per recommended package of practices.
Source of Information :Annual Report:2004-2005
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of genotypes in tarai region.
Personnel :Rajat Mohan, Sardar Singh, Ramakant, Singh BD
Project Period :1999-2005
Objectives: To study the suitable genotypes in tarai region
Results/Recommendation :The data showed that leaf yield was highest in S146 (14.35 ton/ha), followed by S13 (13.46 ton/ha), S34 (11.95 ton/ha), S1635 (12.90 ton/ha), TR10 (11.77 ton/ha) BC259 (11.6 ton/ha) and K2 (9.58 ton/ha) in two harvests in rainfed conditions and are suitable for plantation in tarai region of Uttar Pradesh.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practices for mulberry tree cultivation under sub-tropical condition of Dehradun, Uttaranchal-Evaluation of seven mulberry genotypes for their performance as tree.
Personnel : Juyal AC, Rajat Mohan
Project Period :1999-2005
Objectives :To develop an effective package to increase quality leaf production from tree plantation and make it more remunerative.
Results/Recommendation :
· The data showed that S1635 recorded maximum leaf yield (1390 g) followed by S146 (1340 g) and minimum in C776 (1160 g) MRC% was maximum in the S1 (72.5%) and minimum in the genotype BC259 (62.2%), internodal distance was minimum in the S146 (5.15 cm) and maximum in BC259 (5.89 cm) during autuman. The shoot length was recorded maximum in S1635 (195 cm) and minimum in K2 (128.50 cm).
· In autumn, S146 recorded highest leaf yield (3235 g) followed by S1635 (2949 g) and S1 (2938 g). MRC% after six hours was maximum in S1 (68.5%) and minimum in BC259 (59.2%). The internodal distance was minimum in S146 (4.68 cm) and maximum in S1 (5.29 cm). The total shoot length was maximum in the S146 (250.9 cm) followed by S1635 (232.8 cm) and S1 (238.8 cm) and minimum in C776 (204.6 cm).
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :All India Coordinated Mulberry and Silkworm Germplasm Evaluation Programme (AIMSGEP)-Collaboration in evaluation of mulberry germplasm.
Personnel :Mir MR, Rajinder Kour, Anil Dhar, Khan MA
Project Period :2000-2004
Objectives :Identification of suitable high yielding mulberry genotypes/silkworm races.
Results/Recommendation :The highest number of branches per plant (11.56) was recorded in Acc.E0025, the shortest internodal distance (4.81 cm) in E0054 and the maximum fresh weight of 100 leaves (755.56 g) in E0144.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Raising of poor rooting genotypes of mulberry by grafting its buds on plants of good rooters.
Personnel : Baksh S, Mir MS
Project Period :2000-2001
Objectives :To identify genotypes of mulberry, which can easily be propagated by their hard wood stem cuttings.
Results/Recommendation :Under this study, 30 buds of Goshoerami and 10 buds each of Limoncina, Acc.71 and Acc.72 were grafted on three year old plants, trained as bush in a nursery plot, in 2nd week of April 2000. The success rate was found to be 56.67%, 30%, 40% respectively.
Source of Information :Annual Report:2000-2001
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of mulberry genotypes in terms of morphological and growth parameters.
Personnel : Baksh S, Mir MR, Darzi GM, Dar ZA
Project Period :2000-2004
Objectives :To study the morphological and growth parameters in selected mulberry genotypes.
Results/Recommendation:
· Pooling of four years data yield revealed highly significant differences among the genotypes in respect of number and length of shoot lets, petiole, leaf ratio, leaf shoot ratio, moisture content, moisture content after 6 hrs, fresh weight of 100 leaves and relative abundance of fruits, whereas the differences were non-significant in respect of leaf yield.
· Morus multicaulis attained the maximum value in respect of leaf shoot ratio (64.78%), fresh weight of 100 leaves (0.266 kg) and leaf yield (5.393 ton /ha). The moisture content, in general was 73.06% the genotypes TR10 (74.21%), S1301 (73.66%), S1531 (73.91%), C4 (73.50%) and TR8 (73.14%) being above the average.
· Fruiting was abundant in Morus multicaulis and English black (more than 90/meter length of primary shoot). In the rest of the genotypes, it varied from 4.45 fruits per meter length of shoot in TR8 to 35.81 in C4.
· The superiority of C4 and TR10 over Chinese white (control) was very striking in terms of bioassay performance while the superiority of Morus multicaulis over Chinese white was striking in terms of leaf yield.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of genotypes for hill region.
Personnel :Rajat Mohan, Singh PK, Juyal AC, Singh BD, Dhingra RK
Project Period :2000-2001
Objectives: To screen the genotypes for hill region.
Results/Recommendation :The leaf yield data revealed that S146 recorded the highest leaf yield followed by Chakmajra, BC259, S36, C799, S34 and TR10. The moisture content of all the varieties ranged between 69% to 74%.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of genotypes in sodic soil.
Personnel :Rajat Mohan, Srivastava VB, Singh BD
Project Period :2000-2005
Objectives: To screen the genotypes for sodic soil.
Results/Recommendation :
· The genotypes AR14, AR12, S1635, S13, S1, TR8 and S1531 were identified as genotypes for further screening with higher pH and electrical conductivity. The highest leaf yield was 6.69 ton/ha in AR14 followed by AR12 (6.26 ton/ha) and S1635 (6.20 ton/ha) in two harvests. The leaf and S1635 (6.20 ton/ha) in two harvests. The leaf yield was reduced in all the genotypes grown in sodic soil in comparison to the yield was reduced in all the genotypes grown in sodic soil.
· In comparison to the yield in normal soils of Dehradun and Gorakhpur, AR12, AR14, BR2, S146, S13, S1635, TR10 and S1 were planted at fourth site (BBA university Lucknow) after one year of plantation at Banthra.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Networking units 1-3 at Pampore, Sahaspur and Jammu- Networking unit 1, Pampore.
Personnel :Nisar Ahmed, Quadir SM, Mir MR
Project Period :2000-2002
Objectives :Evaluation of mulberry germplasm under sub-tropical conditions of Jammu.
Results/Recommendation :The required number of 27 saplings per genotype could not be obtained due to temperate climate of this place. Most of the genotypes also suffered damage due to winter frost. Hence, the evaluation programme could not be initiated. Attempts are being made to procure the genotypes.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Networking units 1-3 at Pampore, Sahaspur and Jammu- Networking unit 2, Jammu.
Personnel ;Anil Dhar, Tripathi PM, Qadri SMH
Project Period :2000-2004
Objectives :Evaluation of mulberry germplasm under sub-tropical conditions of Jammu.
Results/Recommendation :
· Autumn 2004 data reveals that the highest leaf yield (0.768 kg/plant) was recorded in accession no. M1324 followed by 0.767 kg leaf yield/plant in accession No.M10080 as against control (S146) with 0.638 kg leaf yield/plant.
· Establishment of mulberry germplasm: Mulberry germplasm bank, involving 35 genotypes, has been raised with regular cultural applications and inputs.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Networking unit 3, Sahaspur.
Personnel : Singh PK, Ramakanth, Chakrabarti S
Project Period :2000-2004
Objectives :Evaluation of mulberry germplasm under sub-tropical conditions of Jammu.
Results/Recommendation :The maximum leaf yield during spring was 38.73 kg/plot in zonal check and during autumn it was 74.31 kg/plot in MV8 (Vishala). No disease incidence was recorded in spring and in autumn, the incidence of leaf spot was found in all the genotypes, it was maximum in local check TR10 (PDI-12.8%) and minimum in zonal check S146 (5.5%)
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of variety V1 under temperate climatic conditions of Kashmir.
Personnel :Baksh S
Project Period :2001-2002
Objectives : To test newly evolved variety V1 of CSR&TI, Mysore.
Results/Recommendation :
· A major portion of the saplings dried up due to cold and new branches developed only from the basal region of the transplanted saplings. A similar behaviour was also observed in its saplings of the same age growing in nursery. In clear contrast, sapling of a temperate variety, Rokokuyoso which were also transplanted along with V1 did not show any drying and new branches developed very close to the cut end.
· The single leaf weight, number of nodes per meter length was also impressive. But the plants of V1 were susceptible to cold as was evident from the drying of branches to the extent of 21.62% during winter months (Nov-Mar) as against only marginal damage (6.68%) in Rokokuyoso.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of superior mulberry genotypes under Jammu conditions.
Personnel :Fotadar RK, Anil Dhar, Bindroo BB
Project Period :2003-2005
Objectives :To evaluate some mulberry genotypes under Jammu conditions.
Results/Recommendation :The study was repeated by planting 69 genotypes (CSGRC, Hosur) in nursery in the month of January 2005 to raise a sizeable population of the genotypes and to permit screening of genotypes at nursery stage. The data on sprouting and height of the saplings was monitored at monthly intervals. In addition fruiting behaviour of the genotypes has been recorded which can be used for short listing the genotypes for future evaluation.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Identification of region specific varieties for different eco-zones of Jammu division.
Personnel :Bindroo BB, Anil Dhar, Fotadar RK
Project Period :2003-2004
Objectives :To estimate the specificity of the productive mulberry cultivars to different environments of the Jammu division of J &K State.
Results/Recommendation :The study shall contribute in identification of the mulberry varieties to specific area as regards the performance and adaptability and the feasible varieties so confirmed shell be taking advantage of the environment for producing plenty of mulberry leaf besides deliming to greater adaptability advantage.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Multilocational trial of improved mulberry genotypes at different altitudes of Himachal Pradesh.
Personnel :Rajat Mohan, Sardar Singh, Anil Dhar
Project Period :2004-2005
Objectives :To study the identified mulberry varieties under different altitudes of Himachal Pradesh.
Results/Recommendation :The study has been laid out at three different altitudes of Himachal Pradesh viz., Takrla farm, Una, 1500 AMSL (plain/foot hill), Dagwar, 2900 AMSL (Low altitude) and DOS farm, Palampur, 4200 AMSL (middle altitude). Genotypes S146, S1635, S13, S34, TR10, S1 and K2 have been planted at the three sites in January 2005 as trees in RBD. The plantation at all the three sites is in establishment phase.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of superior mulberry genotypes under Jammu conditions-Studies on genetic divergence in mulberry.
Personnel :Fotadar RK, Bindroo BB
Project Period :2004-2005
Objectives :To study the genetic divergence in mulberry.
Results/Recommendation :The studies were repeated by planting 69 genotypes in nursery in the month of January 2005 to raise a sizeable population of the genotypes and to permit screening of genotypes at nursery stage. The data on sprouting and height of the sapling was monitored at monthly intervals. In addition, fruiting behaviour of the genotypes has been recorded which can be used for short-listing the genotypes for future evaluation.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title: All India Mulberry and Silkworm Germplasm Evaluation Programme.
Personnel :Juyal AC, Rajat Mohan, Chakrabarti S
Project Period :2004-2005
Objectives :To evaluate the available germplasm under All India Mulberry and Silkworm Germplasm.
Results/Recommendation :
· During spring 2004 maximum leaf yield was recorded in the accession number M10296 (513.33 g) and the minimum was in the accession M10154 (248.33 g). The moisture retention capacity was recorded maximum in M10346 (75.73%) and minimum in M10312 (41.87%). The internodal distance recorded minimum in S146 (4.87 cm) and maximum recorded in M10376 (7.23 cm).
· The autumn data showed that the leaf yield was maximum in the accessions M10416 (850 g) and the minimum was recorded in M10388) (316.33 g). The internodal distance was recorded minimum in S146 (4.72 cm) followed by M10416 (4.73 cm) and maximum in the accession 0290 (6.53 cm). The maximum moisture retention capacity (MRC%) was recorded in M10370 (65.03%). The MRC% was minimum in the Acc. M10312 (54.91%).
Source of Information :Annual Report:2004-05
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Agronomy
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on multiple cropping with mulberry.
Personnel :Tikoo BL, Iyengar MNS, Sumbli SN
Project Period :1972-1975
Objectives :To find out the best cropping pattern to make mulberry cultivation, remunerative and to get maximum use of the land.
Results/Recommendation: In multiple cropping schedules, mulberry-beans and mulberry-mustard was the most suitable. The farmers can take two mulberry harvests one in spring and one in autumn and can harvest two intercrops without interference to mulberry. With the help of some protective irrigation. These intercrops can generate an income of about Rs.2,500/ha in addition to the income by cocoon production.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Supply of leaf and cuttings.
Personnel :
Project Period :1972-1973
Objective: To supply mulberry leaf for rearings and seed cuttings multiplication.
Results/Recommendation :The plantation supplied a total quantity of 30,606 kgs of leaf for rearing purposes. The station also supplied a total number of 1800 cuttings of twenty varieties to the silkworm Seed Station, Coonoor, TamilNadu Agricultural Unversity, Coimbatore, Central Sericultural Research Station, Berhampore and Govt. Silk Farm, BR Hills (Mysore). In addition mulberry seeds were also supplied to the Govt. Silk Farm, BR Hills.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on rooting of exotic varieties.
Personnel :Iyengar MNS, Bakshi RL, Sumbli SN
Project Period :1974-1975
Objective :To study the effect of root hormones on rooting in exotic varieties of mulberry.
Results/Recommendation :The present practice of grafting involves much time and labour; which makes it costly process. To reduce this time lag in the production of saplings and to reduce the cost of preparation of grafts, to induce rooting in these varieties. Trials conducted with root hormones did not meet with success due to the prevailing soil temperature in April.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Bush plantation studies on the systems of plantation.
Personnel : Sahai V, Thippeswamy T
Project Period :1974-1982
Objectives :To increase the leaf yield per hectare of land under bush type of plantation.
Results/Recommendation :Two methods viz., the pit system and the row system of bush plantation have been taken up so as to compare the total leaf yield of the plants for a duration of 5 to 10 years.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the propagation of mulberry by cuttings under Kashmir climate.
Personnel : Iyengar MNS, Sumbli SN
Project Period :1976-1977
Objectives :
· Find out suitable time for propagation of mulberry plants by stem cuttings.
· To find out suitable period for propagation of mulberry by stem cuttings.
Results/Recommendation :Rokokoyaso responded well giving 57% survivability.
Source of Information :Annual Report:1975-76
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Vegetative propagation studies of mulberry in Kashmir.
Personnel : Tikoo BL, Gupta BK, Sumbli SN
Project Period :1976-1981
Objectives :To find out the beneficial procedure to propagate mulberry plants in a quicker way.
Results/Recommendation :Among popular mulberry varieties in Kashmir, Goshoerami and Rokokuyaso could be propagated by stem cutting technique with their survival percentage ranging from 50 to 55% without any hormonal treatment. Further, increase in survival percentage can be achieved by treating the cuttings with hormones viz., GBA, IBA.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on propagation of mulberry by stem cuttings.
Personnel : Tikoo BL, Gupta BK, Sumbli SN.
Project Period :1977-1980
Objectives :
· To find out suitable time for propagation of mulberry by stem cuttings.
· To study the possibility of propagating mulberry plants by cuttings.
Results/Recommendation :Sets of 100 cuttings of each 21 exotic and 11 local mulberry variety were planted and they were not treated with any root initiating hormones. The survival percentages of two mulberry varieties such as Chinese white and Ichihei have recorded 93% and 72% survival respectively.
Source of Information :Annual Report:1977-78
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of cold treatment on propagation of mulberry by cuttings.
Personnel : Sumbli SN, Gupta BK
Project Period :1977-1978
Objectives :To study the cold treatment on propagation in mulberry.
Results/Recommendation :Giving cold treatment to respective mulberry branches in cold storage at 2.5°C for a period of 3, 2 and 1 months. However, at the time of planting in the middle of April, almost all branches were dried up and no survivability of cutting from this treatment was observed. During period under report the period of cold treatment was reduced to 15 days only.
Source of Information :Annual Report:1977-78
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolve suitable pruning schedule for mulberry in Kashmir.
Personnel : Gupta BK, Rajinder Kour
Project Period :1978-1981
Objectives :To evolve suitable pruning schedule for univoltine zone.
Results/Recommendation :Adoption of middle cut pruning resulted in the increased leaf yield of mulberry to 30,000 kgs; as against the traditional pruning in March, which gave leaf, yield of only 16,000 kgs. Rearing is conducted with drastic pruning plants. Among these mulberry varieties tester Limoncina proved superior to other varieties as evidenced by economic characters of cocoons.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of foliar spray of urea on the yield and quality of mulberry leaf and cocoon.
Personnel : Gupta BK, Sumbli SN
Project Period :1978-1984
Objectives :To study the comparative effect of urea on the yield and quality of mulberry leaf.
Results/Recommendation :Foliar application of nitrogen gave an increase 35.3% in the leaf yield over control while as 50% foliar and 50% soil gave an increase of 30.9% over control. Foliar application and 50% foliar and 50% soil application of nitrogen gave an increase of 7.1% and 3.6% respectively over 100% soil application of nitrogen. Analysis of variance indicates that the treatment remained highly significant for most of the growth parameters.
Source of Information :Annual Report:1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on determination of optimum dosage of urea fertilizer to improve the yield and quality of mulberry leaf.
Personnel : Gupta BK, Subba Rao G, Chakrabarti S, Fotadar RK
Project Period :1979-1984
Objectives : To evolve suitable package of practices for mulberry cultivation.
Results/Recommendation :Presently 200 kgs of nitrogen/ha are being applied by which 22,271 kgs of leaf/yr is harvested. By providing 400kgs of nitrogen/ha/yr, there is an increase of 3762 kgs of leaf, which can be utilized for rearing of additional 3 ounces of seed to yield an average harvest of 30 kgs/ounce. This would yield a total of 90 kgs of green cocoons fetching Rs.1,350 over and above the normal rearing conducted by the farmer.
Source of Information :Annual Report:1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on effect of intercropping in mulberry.
Project Period :1981-1985
Objectives :To make sericulture more remunerative and to raise income per unit area, an experiment on intercropping in mulberry has been initiated.
Results/Recommendation :The overall income estimated would be Rs.25,560 per hectare as against Rs.15,000 from rearing alone. Keeping provision for purchase of seed and fertilizer, it is estimated that Rs.20,000 can be easily earned per hectare of mulberry plantation of 6'x6' spacing if intercropping is practiced in addition to two rearings. Moreover, pruned wood would be an additional income from the plantation.
Source of Information :Annual Report:1984-85
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on suitable type of edge required for rooting in mulberry stem cuttings.
Personnel : Chakrabarti S, Bhakuni BS, Fotadar RK
Project Period :1981-1983
Objectives: To study the type of edge required for good rooting in mulberry cuttings.
Results/Recommendation :Rokokuyoso variety was selected for the study. Four types of edges of cuttings were prepared i.e., flat cut, pen cut, chisel cut and conical cut. 250 cuttings of each type were planted in April. Details regarding morphological characters i.e., average number of branch, average length, number of buds, number of primary roots per cutting, maximum length of primary root is observed that pen cut thrives best followed by chisel cut.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the time and age of transplantation of cuttings of mulberry.
Personnel :Chakrabarti S, Bhakuni BS, Fotadar RK
Project Period :1981-1982
Objectives :To study the effect of transplantation during different months on the survivality percent.
Results/Recommendation :25 cuttings each of the variety Goshoearmi and Rokokuyoso were transplanted to the field at monthly intervals. Data was recorded before the saplings were transplanted to the field. Data regarding average length, primary branch, average number of primary roots and average length of the longest roots are recorded.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the type of branch required for propagation of stem cuttings in mulberry.
Project Period :1982-1983
Objectives: To identify suitable branches to select stem cuttings for propogation in mulberry.
Results/Recommendation :Study reveals that cuttings from primary branch thrive best in case of varieties-Kairyoroso, Rokokuyoso, Goshoerami, Limoncina and KNG while cutting from secondary branch shows higher survivability over primary branches in case of Enshtakasuke. Moreover, maximum survivality is recorded in Rokokuyoso (70%) followed by Goshoerami (28.66%).
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on behaviour of cuttings of different mulberry varieties.
Project Period :1982-1983
Objectives :A study on the behaviour of stem cuttings of different mulberry variety.
Results/Recommendation:The study reveals that there are some promising mulberry varieties which can be propagated by stem cuttings ie., Chinese white, Ichehei, Rokokuyoso, Koksu27, Soshoeari, Kairyoroso, Limoncina whose survival percentage ranges from 22.66% to 64.16%. It is evident from the study that maximum rooting is recorded in Chinese white (64.16%) followed by Ichehei (60.00%). A further study reveals that there are some varieties, which shows no response towards propagation by stem cuttings viz., Obowase, Zagtul, Lajward, Chinarpati, hence they are propagated by grafting.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative studies on bush and dwarf type of mulberry plantation.
Project Period :1985-1986
Objectives :To find out the type of plantation which could perform better in respect of most of the growth parameters in the field at farmers level.
Results/Recommendation :Main advantage of dwarf type of plantation are that intercropping can be easily practiced by the farmer and thereby can fetch more income to a Sericulturist. Also the leaves do not get soiled as has been often observed in bush type plantation wherein the ground level branches droop to such an extent that lower leaves become unfit for feeding silkworms.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on developing suitable pruning schedule for bush and dwarf type mulberry plantation.
Project Period :1985-1986
Objectives :To find out the suitable pruning schedules which could be adopted by the farmers in their holdings and also to provide quality foliage at least for two rearings i.e., spring and autumn rearings.
Results/Recommendation :It is evident from the data that the top pruning followed by drastic pruning has proved to be the most effective and it is possible to raise quality foliage for at least two rearings and make possible raising of two agricultural crops, thereby raising the earning of the rearer.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on propagation of mulberry through stem cuttings in green house.
Project Period :1988-1989
Objectives :To work out the feasibility of utilizing long winter months in raising mulberry when mulberry is in dormancy in the field.
Results/Recommendation :The mulberry cuttings were planted both directly in soil beds and in polythene bags in the green house. The results showed a survival of 63-78% with cuttings planted in polythene bags as against 49.25% when planted directly in the soil. The data suggests that mulberry can be raised in polythene bags during winter months when the plants are in the dormancy in field.
Source of Information :Annual Report:1988-89
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on propagation of mulberry through cuttings.
Project Period :1988-1989
Objectives :To study rooting behaviour of mulberry varieties under temperate conditions in the field.
Results/Recommendation :11 mulberry varieties viz., Aogowase, Italian Sarnal, Kokuso-20, Kokuso-21, Tomeiso, Eushtakasuke, Chowase, Ichihie, Senmatsu Sanish-5 and Shantul were selected for studying the rooting behaviour and it is observed that none of these varieties showed response towards propagation through cuttings.
Source of Information :Annual Report:1988-89
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on propagation of mulberry under natural conditions using polythene cover.
Project Period :1988-1989
Objectives :To find out effect of polythene cover on survivability and growth parameters under field conditions.
Results/Recommendation :The effect of polythene cover on survivability, mean height, number of leaves/sapling revealed that covering the nursery bed with polythene sheets recorded a better survival and growth parameters than without cover. The results also suggests that variety "Chinese white" showed good response without polythene cover as well.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on intercropping in mulberry.
Project Period :1989-1990
Objectives :To make mulberry more remunerative different intercrops are being tried with mulberry.
Results/Recommendation :The observations recorded reveal that 1.285 gms/ha of dry saffron can be harvested which can fetch an additional income of Rs.19,275. It is also observed that there is no effect on the mulberry leaf by cultivating saffron in between mulberry rows as the flowering period of saffron is October-November when all the rearing operations are over.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on evolution of agronomical practices for mulberry under temperate conditions.
Project Period :1989-1990
Objectives :To improve the leaf yield by adopting optimum spacing.
Results/Recommendation :Irrespective of variety tested the maximum leaf yield was recorded at 3'x3' spacing which gradually decreased with increase in spacing.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on package of practices and economics of mulberry cultivation under sub-tropical conditions.
Personnel : Anil Dhar, Bindroo BB
Funding Source :CSB, Bangalore
Project Period :1990-1997
Objectives :
· To recommend a suitable mulberry genotype for sub-tropical region.
· To evolve a proper pruning schedule for taking multiple crops.
· To advocate a suitable spacing for mulberry under different types of plantation.
Results/Recommendation :
· Bottom pruning in July followed by middle pruning during December is ideal for bush gardens.
· Chakmajra is most promising mulberry genotype under sub-tropics recording an increase in leaf yield upto 25% over variety Kanva2.
· Spacing of 3’x3’ for bush, 4'x3' for high bush and 8'x9' for tree type of plantation is most economical under respective type of plantation.
· Bottom pruning in mid July, Middle pruning in mid December recorded about 25% increase in leaf yield over kanva-2.
· Recorded more than double leaf production/unit area over trees 3'x3' recommended for bush, 3'x4' for dwarf, 8'x9' for trees.
· Availability of more leaf in autumn encourages to go for commercial 2nd rearing during autumn.
Project Outcome : Complete package of practices for mulberry bush has been developed and recommended for adoption.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on performance of promising varieties under different spacings in temperate conditions.
Personnel : Fotadar RK, Rajinder Kour, Sumbli SN
Project Period :1990-1991
Objectives :To find out the optimum spacing for maximum leaf yield.
Results/Recommendation :The maximum leaf yield was recorded at 3'x3' spacing as against 6'x6'. The overall leaf yield increased in 3'x3' spacing was due to higher plant population per unit area. A perusal of other growth parameters for all the four varieties under different spacings revealed that growth parameters decreased from plants at higher spacings to lower spacings.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on intercropping of mulberry for increased economic returns under temperate conditions.
Personnel : Fotadar RK, Rajinder Kour, Sumbli SN
Project Period :1990-1991
Objectives :To make mulberry cultivation more remunerative by taking agricultural crops in between the rows.
Results/Recommendation :340 gm/ha of dry saffron can be harvested which can fetch an additional income of Rs.5,567.67 ha/yr at Rs.200/12 ms. An income of Rs.5,667.67 can be generated by way of intercrop in addition to income generated through silkworm rearing.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on type of plantation, pruning and spacing for maximization of leaf yield under subtropical conditions.
Personnel : Fotadar RK, Rajinder Kour, Sumbli SN
Project Period :1990-1994
Objectives : Finding out the optimum spacing under the three types of plantation viz., bush dwarf and tree.
Results/Recommendation :
· The results reveal that among the spacing 2'x2' proved significantly superior over the other spacing during both the seasons of spring and autumn. The yield varied from 17.57 tons /ha/yr with 2'x3' spacing to 19.83 tons/ha/yr with 2'x2' spacing. Significant differences in number of shoots per plant, total shoot length, heights of the plant, internodal distance were also observed among the spacing.
· Similarly the leaf yield varied from 12.39 tons with 4'x6' spacing to 18.33 tons/ha/yr with 3'x4' spacing in dwarf type of plantation. A spacing of 3'x4' proved significantly superior than the rest of spacing in all the three season. Significant differences were also observed in number of shoots per plant and hundred-leaf weight during spring season and number of shoots per plant, total shoot length and number of leaves per plant.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of pruning at different heights vis-a-vis rearing on bush type of plantation.
Personnel : Fotadar RK, Rajinder Kour, Sumbli SN
Project Period :1990-1995
Objectives : To study the effect of pruning with respect to leaf yield.
Results/Recommendation :Results revealed that significant difference in the leaf yield among the treatments and between the seasons. From the data recorded it can be inferred that a stepping down type pruning for higher spring leaf yield and stepping up type of pruning for higher autumn leaf yield can be of immense use. Further none of the pruning treatments were observed to show any marked effect on the extent of characters through bioassay studies.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on rooting behaviour of cuttings in two different seasons.
Project Period :1990-1994
Objectives :An insight on the rooting behaviour of mulberry cuttings in the different seasons and their subsequent transplantation in the field.
Results/Recommendation :In the entire northwestern belt of the country, the nursery raising is being done only once in a year and one year saplings are supplied to the farmers. This becomes very uneconomical and time consuming.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on maintenance of farm/nursery.
Project Period :1990-1991
Objectives :To provide different cultural operations in farm/nursery from time to time.
Results/Recommendation :
· The whole mulberry farm/nursery were provided different cultural operations viz., weeding, digging, pruning, and hoeing, manuring application of FYM etc., from time to time.
· In view of field plantation a nursery consisting of 45,000 cuttings have been prepared at the centre.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on comparative survivability of Chinese white and Mandalay cuttings during monsoon.
Project Period :1990-1991
Objectives :To find out the survivability of Chinese white and Mandalay cuttings during monsoon in Punjab.
Results/Recommendation :The survivability was higher in case of Chinese white being 46.44% whereas in case of Mandalya the survivability was only 19.40%.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative evaluation of seven popular mulberry varieties under the subtropical conditions.
Project Period :1991-1994
Objectives :To evaluate best mulberry variety under tropical conditions.
Results/Recommendation: Significant differences have been recorded in most of the characters in both the seasons. Variety Chakmajra exhibited maximum number of shoots/plant in both the seasons. Other characters varied from variety to variety and from season to season. Chakmajra proved significantly superior over the other varieties during spring and Mandalay during autumn.
Source of Information :Annual Report:1990-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of spacing on rooting and growth of mulberry cuttings planted in nursery.
Project Period :1991-1991
Objectives :To evaluate the appropriate spacing for nursery.
Results/Recommendation :The observations revealed that the sprouting initiated in the 2nd fortnight and continued till sixth fortnight. Later on withering of cuttings started and therefore the assessment of rooting will be made as and when the saplings get established.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Response of NPK in the maximization of quality mulberry and cocoon production.
Project Period :1992-1994
Objectives :To quantify the optimum doses of N, P and K for mulberry for the effective utilization of nutrients in particular and fertilizers as a whole as well as to improve the yield of quality mulberry and cocoons.
Results/Recommendation :The maximum leaf yield was obtained from the combination of 200 kg N, 75 kg P, 75 kg K followed by the treatment comprising of 200 kg N, 75 kg P, 50 kg K which were 31.91% and 30.55% increase over control respectively.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of micronutrients in the maximization of quality mulberry leaf yield and cocoon production.
Project Period :1992-1994
Objective: To study the effect of micronutrients on quality and yield of leaf and its effect on rearing.
Results/Recommendation :All micronutrients are showing promotory effects over control in respect of yield and other yield attributing characters. The maximum leaf yield obtained was due to the application of 10 kg Boron followed by 10 kg of Manganese. The yield increases were 31.42% and 31.08% more respectively compared to control.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practice and economics of mulberry cultivation-Intercropping of mulberry for better economic returns under temperate conditions.
Personnel : Rajindar Kaur, Sadaf Nazir
Project Period :1994-1999
Objectives :To grow saffron with mulberry as intercrop to make more use of land and generate more income from sericulture.
Results/Recommendation :
· While growing saffron in between mulberry dwarf plantation, a farmer can harvest 215.67 g/ha/yr and can have additional income of Rs.8600.00 approximately. Thus overall approximate income amounts to Rs.33600.00.
· Similarly, while growing mulberry as tree (9'x9') a farmer can harvest 3573.456 kg of mulberry leaf/ha/yr, which is sufficient for rearing of 3 ozs of silkworm seed and can harvest approximately 40 kg of dry cocoons at 40 kg/oz and can have income upto Rs.10,000 at Rs.250/kg. While growing saffron in between the mulberry trees a farmer can fetch an additional income of Rs.10054.44 at Rs.40/gm.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Development of nucleus garden-Propagation of mulberry through grafts and cuttings.
Personnel : Rajindr Kaur, Sadaf Nazir
Project Period :1994-2000
Objectives :To see the response of various mulberry varieties under temperate conditions.
Results/Recommendation :4500 cuttings of Chinese white variety were planted during the month of March 2000. Further, 700 cuttings of TR10 variety and 320 cuttings of BC259 variety were planted in the month of July 2000 which were received from Berhampore institute. One thousand root grafts of various improved varieties were sown in the month of March/April 2000 and survivability was recorded above 60%. 200 pouch grafts of Goshoerami and KNG varieties were planted during same month and survivability recorded was 50% and 22% respectively.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on pruning under rainfed and irrigated condition.
Personnel : Srivastava VB, Dhingra RK, Sumbli SN
Project Period :1995-1997
Objectives :To recommend the farmers the most suitable time and type of pruning for ensuring optimum mulberry leaf yield to undertake at least four crops in a year.
Results/Recommendation :The finding of this experiment regarding impact of pruning has been successfully demonstrated at farmers level in operational areas of Research Extension Centre, Unnao. The farmer who have established half an acre of mulberry bush plantation on their own land are harvesting 4 crops in a year and earning more than 7000 rupees per year from the same land area.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on pruning under rainfed and irrigated condition-Studies on leaf yield from different spacing in the bush plantation of mulberry under rainfed condition.
Personnel : Srivastava VB, Dhingra RK, Sumbli SN
Project Period :1995-1998
Objectives :To recommend the farmers the most suitable spacing to ensure optimum mulberry leaf yield for undertaking at least four crops in a year.
Results/Recommendation :
Results/Recommendation :Stem pruning in June followed by pruning at 3’ height in December.
· Spacing 3'x3'
· In order to popularize the package of practices in Uttar Pradesh three sites i.e., Dehradun, Bahraich and Gorakhpur have been selected as Seri-Tech-Parks in consultation with Department of Sericulture, Uttar Pradesh for transfer of technology. Mulberry saplings have been raised at RSRS, Sahaspur for the establishment of Seri-Tech-parks at three selected places in UP.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the propagation of mulberry through tender shoots.
Personnel : Dhingra RK, Srivastava VB, Sumbli SN.
Project Period :1996-1997
Objectives :Evaluation of appropriate technology for the propagation of mulberry at faster speed.
Results/Recommendation :
· This technique if found most suitable with almost 90-95% success during winter months when outside temperature tend to come down to 5-10°C and room temperature between 20-25°C. High temperature and humidity build up inside the plastic covering during summer adversely affect the nursery raising by tender shoots.
· The buds are found to get scorched under high temperature and humidity. Excess watering under high temperature cause decay of the tender portion of the buds. From second half of October onwards when the vertical growth of the plant is influenced by low temperature and leaf fall commences, has been found most suitable period for propagation of mulberry by tender shoots and as per the procedure indicated above. In plain districts and elsewhere it may work satisfactory from November to December.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the mist chamber technique for mulberry leaf production during winter season.
Personnel : Dhingra RK, Srivastava VB, Sumbli SN
Project Period :1996-1997
Objectives :To ensure availability of mulberry leaf during winter season for various experimental studies and limited seed rearing.
Results/Recommendations: To minimize the cost of production of mulberry leaf during winter season a pilot study has been taken up to produce mulberry leaf without the help of polythene sheet using usual technique of pruning followed by irrigation.
Despite low temperature prevalent in outside atmosphere the sprouting in mulberry bushes occurred within 15 to 20 days inside the tent and attained height of 2 to 2.5 feet during January month when outside night temperature was ranging 2 to 5°C. Whereas temperature ranging between 30-35°C with humidity 80-95% was maintained inside the tent during daytime.
This method of mulberry leaf production has helped a great deal for raising cross breed silkworm seed for MV x BV rearing in early summer.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Pruning and training of mulberry plants for quality leaf harvest during autumn rearing.
Personnel :Dhingra RK, Singh PK, Juyal AC, Rajat Mohan, Sumbli SN
Project Period :1997-2000
Objectives :To reduce the time gap between the pruning and harvesting of mulberry leaf specially for autumn rearing in Doon valley.
Results/Recommendation :In continuation of the concluded experiments and as per the needs of DOS, UP the pilot study has been taken up. The treatments were given and data has been collected. The treatment T1 has given maximum leaf yield per plant as compare to other treatments
Effect of pruning on growth and yield of mulberry
Treatment
Average number of branch/plant
Average length of Branch cm)
Average number of leaf/branch
Average
internal
distance (cm)
Average leaf yield/plant
(gm)
T1
20
107.03
29
5
533.33
T2
16
93.53
25
5
404.33
T3
15
77.92
20
5
297.50
T4
16
78.00
18
4
302.50
T5
09
157.64
21
5
415.42
Mean
15
102.82
23
5
390.67
CD at 5%
2.1055
8.9637
1.6268
0.3714
59.3368
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on pruning schedule to harvest mulberry leaf in winter season.
Personnel : Dhingra RK, Srivastava VB, Gupta YK, Sumbli SN.
Project Period :1997-2000
Objectives :To minimize the cost of production of mulberry leaf during winter season without using polythene tent.
Results/Recommendation :The best treatment T1 (pruning at 6" height from crown during middle September (i.e., 3rd week of September) and the leaf produced is being utilized for the brushing of silkworm crop in second week of December.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the vermicomposting for recycling of sericulture and organic wastes.
Personnel: Juyal MA, Rajat Mohan, Sumbli SN, Dhingra RK, Srivastava VB
Project Period :1997-2001
Objectives :To standardize the vermicomposting technique for recycling of sericulture and organic wastes in the sub-tropical conditions of Doon valley.
Results/Recommendation :
· The three recommended earthworm species for vermicomposting purpose i.e., Eudrilus euginae, Eisenia foetida and Perionyx excavatus are under preservation and multiplication under cemented base to maintain nucleus stock of earthworms. The regular humidity of 30-40% is being maintained in the cultural beds.
· The 300, 200, 100 earthworms of each species were taken for this purpose. It was found that multiplication rate of Eudrilus euginae was better than others. The earthworms were multiplied 9 to 10 times in a year. It was also observed that the active period of earthworms is from March to mid of November. The vermi product was analyzed at CSWCRTI lab, Dehradun and found that 1.66% N, 0.304% P and 0.7643% K. The low cost preservation technique was standardized.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on recycling of sericulture waste as compost.
Personnel : Juyal AC, Rajat Mohan, Dhingra RK, Gupta YK, Sumbli SN.
Project Period :1997-2000
Objectives :To evolve the compost technique for recycling of sericulture and organic wastes.
Results/Recommendation :As the sericulture farmers in Doon valley and elsewhere in Uttar Pradesh are marginal and small and so the generation of seri-waste is very less. A package has been prepared to utilize seri waste and organic wastes for the production of compost for half mulberry form. The pit size single chamber 8'x5'x3' and three-chambered 9'x5'x3' has been standardized for the local condition of Uttar Pradesh.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the propagation of mulberry under sub-tropical agro climate-Studies on the effect of different growth promoting substances on mulberry saplings.
Project Period :1997-1999
Objectives :To infuse more vigour and desired growth in mulberry saplings for better post transplantation success.
Results/Recommendation :Based on the pooled data of four genotypes (S146, Chakmajra, Chinese white and TR10) collected on the growth of mulberry saplings it is found that the lowest concentration of MARK i.e., 500 ppm is the most effective, recording an increase of 8.20% in sapling height over control, followed by GA3 at 5.0 ppm with an increase of 7.425%.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practices of mulberry cultivation under temperate climatic conditions - Effect of different pruning schedules on leaf yield of mulberry tree plantation (rainfed condition).
Personnel :Rajinder Kour, Sadaf Nazir
Project Period :1998-2001
Objectives :To develop a package for maximization of quality leaf for two rearings, which will ultimately lead to more cocoon production.
Results/Recommendation :As can be seen from the table, T2 gave best results yielding 20.95 kg and 21.52 kg leaf per tree at the two sites respectively.
Treatment
At the main Institute
At village Sanboora
Spring
Autumn
Annual
Spring
Autumn
Annual
T1
12.42
8.19
20.61
12.76
8.53
21.29
T2
12.97
7.98
20.95
11.39
10.13
21.52
T3
5.86
5.62
11.48
8.46
5.26
13.72
T4
11.52
9.39
20.91
11.66
9.51
21.17
T5
12.26
7.46
19.72
10.63
7.95
18.58
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Development of package and practices for tree type of mulberry cultivation suitable for agro climatic condition of Doon valley.
Personnel : Juyal AC, Rajat Mohan, Dhingra RK, Gupta YK, Sumbli SN, Singh PK.
Project Period :1998-2003
Objectives :To develop suitable package of practice for tree mulberry cultivation to increase leaf production.
Results/Recommendation :The productivity level of mulberry trees was increased when an experiment of pruning was initiated in year 2000 in old trees of TR10 genotypes in RBD with six pruning treatments. The existing pattern of lopping is taken as control. The leaf yield data was collected for first two crops during spring and autumn and later on for the summer. The productivity level of mulberry trees was initiated when treatment is given which is the basal pruning above crown 15-30 cm in June/July followed by top pruning from 60-90cm during December with harvesting pattern of mulberry shoot lets (tertiary branch above 60cm) harvesting during spring instead of lopping of primary and secondary branches and plucking during autumn as existing pattern in the field. The pruning operations are being done in the tertiary branch above crown during monsoon (June-July) and Winter (Dec.) The basal pruning can also be taken with summer crop where the summer crop is being initiated.
It is recommended to give package for better leaf quality and quantity of mulberry foliage by developing pruning and harvesting technology.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on propagation of mulberry through tender shoots by using local material as a cover.
Personnel : Dhingra RK, Gupta YK, Juyal AC, Sumbli SN
Project Period :1998-1999
Objectives : To propagate local mulberry through tender shoots
Results/Recommendation :The tender shoot technique can help in utilizing complete pruned branch including tender portion, which used to be rejected earlier. The locally available dried sugar cane leaf thatch in place of polythene sheet can also minimize the cost of production.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of mulberry varieties amenable to propagation by stem cuttings and with high survival ability under temperate climatic conditions of Kashmir.
Personnel :Shamim Baksh
Project Period :1999-2002
Objectives : Evaluation of mulberry varieties by stem cuttings under Kashmir conditions.
Results/Recommendation :The clones of 69 plants were trained as dwarf at 180 x90 cm spacing and all of them consisting of 1400 plants were studied in terms of their survival under field conditions. No mortality was observed in any clone except S99 where it was 2.08%.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Qualitative and quantitative improvement of mulberry leaf production by application of chemical and bio-fertilizer - To study the effect of different doses of chemical fertilizers on the leaf yield of mulberry.
Personnel :Singh PK, Dhingra RK, Singh BD, Rajat Mohan, Juyal AC, Sumbli SN, Ramakant
Project Period :1999-2004
Objectives :To evolve a suitable agronomical package of practice to maximize leaf yield per unit area.
Results/Recommendation :
· Maximum leaf yield (8360.82 kg/acre) when the data of both seasons of all three crops was pooled. Hence this application of NPK dose is recommended for the same type of soil in which the experiment was conducted.
· N0- No fertilizer, N1-300 kg, N2-250 kg, N3-200 kg, P1-180 kg, P2-150 kg, P3- 120 kg, K1-120 kg, K2- 110 kg, K3-100 kg.
· Azotobacter chroococcum (A41 strain) biofertilizer was collected from Indian Agricultural Research Institute, New Delhi to study its effect on the mulberry. The biofertilizer was applied in five treatments, in RBD with 3 replications.
· During autumn also shoot length (170.15cm) and leaf yield 3196.6 kg/ha/crop) were recorded maximum in T2 (10 kg BF/ha/crop). The number of leaves/branch (39.74) and number of branches/plant (10.35) were recorded maximum in treatment T6 (control) and T4 (20 kg BF/ha/crop). The leaf yield (7698.98 kg/acre) and shoot length (174.9 cm) was also recorded maximum when the data was pooled for both the seasons of all three crops.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Unified package of practices, for mulberry cultivation under rainfed conditions in North India.
Personnel : Khan MA
Project Period :1999-2004
Objectives :To develop a suitable package of practices for mulberry tree cultivation under sub-tropical and temperate climatic conditions prevailing in North Indian states of Uttar Pradesh, Himachal Pradesh and Jammu & Kashmir.
Results/Recommendation :Goshoerami yielded the maximum leaf with highest weight and moisture content in both the crops. Significant differences were recorded in almost all the parameters studied. It is important to mention here that the plants experienced untimely snowfall during spring, 2004 that caused a decline in leaf yield.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of different harvesting/pruning methods on leaf yield and quality.
Personnel :Anil Dhar, Tripathi PM, Bindroo BB
Project Period :1999-2005
Objectives :To study the effect of harvesting and pruning methods on leaf yield and quality.
Results/Recommendation :
· The data collected revealed that highest leaf yield (4.103 kg/plant) was recorded in T3 (shoot harvesting in March/April and shoot harvesting in Sep.) followed by T5 (shoot harvesting in March/April and top clipping in July and shoot harvesting in Sep.) with leaf yield of 3.768 kg/plant and the minimum leaf yield of 0.625 kg/plant in T6. Regular cultural and manurial operations are attended to as per schedule.
· The plantation for the experiment was maintained following all the necessary cultural operations as per the advocated package except pruning, which was advocated as per the experimental treatments. The observations on various yield and yield attributing parameters were recorded during autumn 2004, coinciding with 5th stage of silkworm rearing. Leaf yield/tree was highest (6.788 kg) in T1 (Bottom pruning in June) and the lowest (5.170 kg) in T5 (bottom pruning in autumn).
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practice for mulberry tree cultivation under sub-tropical conditions of Dehradun (UP).
Personnel : Juyal AC, Rajat Mohan, Dhingra RK, Singh PK, Sumbli SN, Singh BD
Project Period :1999-2004
Objectives :To develop an effective package to increase quality leaf production from tree plantation and make it more remunerative.
Results/Recommendation :The data showed that S1635 recorded maximum leaf yield (1390 g) followed by S146 (1340 g) and minimum in C776 (1160 g). C percentage was maximum in the S1 (72.5%) and minimum in the genotype BC259 (62.2%). Internodal distance was minimum in the S146 (5.15cm) and maximum in BC259 (5.89 cm). Total shoot length was recorded maximum in S1635 (195 cm) and minimum in K2 (128.50 cm).
In autumn, S146 recorded highest leaf yield (3235 g) followed by S1635 (2949 g) and S1 (2938 g), MRC% after six hours was maximum in S1 (68.5%) and minimum in BC259 (59.2%). The internodal distance was minimum in S146 (4.68 cm) and maximum in S1 (5.29 cm). The total shoot length was maximum in the S146 (250.9 cm) followed by S1635 (232.8 cm) and S1 (238.8 cm) and minimum in C776 (204.6 cm).
Source of Information :Annual Report: 2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on mulberry leaf production technology package.
Personnel :Quadir SM, Rajinder Kour, Nisar, Mir MR, Zeya SB, Bhat GH, Mohd. Aslam
Project Period :1999-2000
Objectives :To develop mulberry production technology package for rainfed conditions of Kashmir.
Results/Recommendation :The plantation is maintained as trees under rainfed conditions. Data on the parameters viz., leaf yield per tree, moisture content and moisture content after 12 hrs was recorded when the worms were in 5th age. Perusal of data reveals that by following recommended package, there is considerable increase in leaf yield (17.88 to 32.95% over control).
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on development of mulberry nursery technology package.
Personnel :Quadir SM, Rajinder Kour, Nisar, Mir MR, Zeya SB, Bhat GH, Mohd. Aslam
Project Period :1999-2000
Objectives : To develop economically viable nursery technology package
Results/Recommendation :Cuttings were planted as per the recommendation as well as conventional practices.
Age group
Leaf yield/tree
Moisture content in leaf (%)
Moisture content of leaf after 12 hrs (%)
Around
Control
Package
% Increase
Control
Package
Control
Package
10 years
5.027
6.2777
24.87
67.98
70.66
62.58
64.10
20 years
8.932
11.860
32.95
70.25
72.15
64.47
66.08
30 years
16.640
19.616
17.88
69.88
72.57
64.63
67.32
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Raising of saplings of genotypes Rokokuyoso by its hard wood stem cuttings.
Personnel :Baksh S, Mir MS
Project Period :1999-2002
Objectives : To raise the saplings using Rokokuyoso a hard wood tree mulberry.
Results/Recommendation :The Rokokuyaso is a temperate Japanese mulberry genotype introduced in Kashmir a long time back. Its performance in terms of leaf yield and quality is very good but its performance in terms of propagation through stem cuttings has been found to be poor as reported by many workers in the past. It is therefore multiplied by grafting. In contrary, encouraging results have been obtained in the propagation of these genotypes through stem cuttings.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Raising of saplings of good rooters from their hard wood stem cuttings in summer.
Personnel : Baksh S, Dar ZA, Mir MS
Project Period :1999-2002
Objectives :To demonstrate the technology to the sericulture officials of the Institute and its nested units besides those sponsored by DOS, Srinagar in the month of August and October.
Results/Recommendation :The cuttings registered an average 87.92% sprouting after 30 days and 90% after 45 days of planting. As regards their survival after 60 days and 180 days of planting was, in general, 83.33%. The saplings of Chinese white were significantly taller (average height 1.8 m) than other genotypes. The cuttings of some good rooters namely, Chinese white C4, Acc.48 and TR10 were provided to P4 BSF, Manasbal in June to test the afore mentioned technology. Survival of cuttings was 77% in the Chinese white and Acc.48 and about 70% in the other genotypes, which confirm that the saplings of these genotypes can be raised at large scale in summer also.
Source of Information :Annual Report: 2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative evaluation of good rooting mulberry genotypes as trees in terms of leaf yield and quality under rainfed condition in Kashmir.
Personnel : Bakshi R, Mir MR
Funding Source :CSB, Bangalore
Project Period :2000-2004
Objectives :To short list good rooting genotype (s) for cultivation as trees.
Results/Recommendation :The genotypes under study have exhibited significant variation among them in respect of growth parameters.
The weight of 100 fresh leaves in Morus multicaulis was remarkably more both in spring and autumn than other including control (Chinese White). The number of nodes/mt length of primary shoot was significantly higher in Okinawa (19.73) than many including Chinese White (16.93). Leaf petiole ratio was least in Okinawa (8.22% in spring and 7.37% in autumn and TR8 8.77% in spring 9.78% in autumn) being significantly less than others including Chinese white (control)
The leaf shoot ratio was significantly higher in Morus multicaulis (64.78% in spring; 57.42% in autumn) than Chinese white (54.67% in spring; 45.29% in autumn). Moisture content after 6 hrs. of harvest was 67.19% (Okinawa) to 71.71% (TR10) in spring and 61.46% (Okinawa) to 68.32% (C4) in autumn respectively.
Morus multicaulis was highest leaf yielder with the leaf yield of 11.348 tonnes/ha/yr as against 6.667 tonnes in Chinese white.
C4 and TR10 performed better than many other Chinese white and Morus multicaulis in bioassay parameters.
No silkworm disease incidence was noticed during the course of rearing both in spring and autumn crops in any genotypes.
The performance of spring crop in all the genotypes was superior to that of autumn crop with the overall average cocoon yield of 73 kg/100 dfls in spring as against only about 53 kg in autumn.
Filament length was in general 898m in springs as against 676 m in autumn; denier was in general 2.63 in spring and 2.44 in autumn. Genotypes sprout in 2nd fortnight of March, thus, being earlier than the local and the exotic temperate genotypes under Kashmir conditions.
Many of 11 genotypes including C4, TR10 and Morus multicaulis attained bigger leaf size than control (Chinese white) by 4th week of April and as such can be used for brushing in spring season about 7-10 days earlier than the conventional brushing schedule.
Based upon leaf yield, leaf weight, leaf shoot ratio, moisture content in fresh as well as after 6 hrs. of harvest and also bioassay performance 3 genotypes viz., C4, TR10 and Morus multicaulis are recommended.
Source of Information :Annual Report: 2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Raising of saplings of genotype Chinese white by planting its hard wood stem cuttings in winter under natural field conditions.
Personnel :Shamim Baksh
Project Period :2000-2002
Objectives :To find out feasibility of raising of sapling during winter under field condition so that farmers in Kashmir may get meaningful work during off season.
Results/Recommendation :
· Sprouting: 77.67% sprouting which increased only marginally in the next 15 days. Thus, after two months of activation of buds, the sprouting was 83.00%.
· Growth of saplings: The growth was negligible in the 2nd fortnight of October 2001; however, the mean height attained by the saplings was 2.04 m. The frequency distribution of saplings height revealed more than 85% of saplings with one meter and above in height.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the influence of anti-transpirants for increasing crop productivity in mulberry under rainfed conditions.
Personnel : Singhal BK, Bindroo BB, Anil Dhar, Tripathi PM
Funding Source :CSB, Bangalore
Project Period :2000-2004
Objectives :
· To identify an antitranspirants to overcome the leaf problem under water deficient condition of Jammu province.
· To formulate the desired concentration of antitranspirants increasing leaf yield and leaf size significantly with economic viability.
· To commercialize the final product for sustainable sericulture under rainfed condition of Jammu province.
Results/Recommendation :Six antitranspirants, namely, Abscissic acid, 8HQ, Cycocel, Kaolin. Salicylic acid and Mepiquat chloride were foliar sprayed on mulberry leaf in different concentrations during spring and autumn seasons. Based on preliminary results with various concentrations in final trials, the concentration of 0.50 ppm, 2.0 ppm, 5.0 ppm, 50.00 ppm of Abscissic acid, 8HQ, Cyclocel, Koalin and Salicylic acid, respectively were found optimum for increasing mulberry leaf yield and quality. The highest increase in leaf yield to the extent of 31.88 over control was achieved by the application of abscissic acid followed by 26.51% by salicylic acid application during spring season.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Development of package of practices for mulberry tree cultivation under sub-tropical conditions of Jammu (J & K).
Personnel :Anil Dhar, Tripathi PM, Bindroo BB.
Project Period :2000-2003
Objectives : To develop a package of practice for mulberry cultivation
Results/Recommendation :Perusal of the data collected reveals that genotype V1 yields maximum during autumn season with average leaf yield/plant at 2.214 kg as against a minimum leaf yield of 0.925 kg/plant recorded in Chinese white. The genotype S1 recorded the maximum stem girth, S13 produced maximum number of shoots/plant and the total shoot length has been maximum in Chakmajra when observed during autumn.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on qualitative and quantitative improvement of mulberry leaf production by application of chemical and biofertilizers in Doon Valley of Uttaranchal.
Personnel : Singh PK, Singh BD, Dhingra PK, Ramakant, Sumbli SN, Chakrabarti S.
Funding Source :CSB, Bangalore
Project Period :2000-2003
Objectives :To improve the quality and quantity of mulberry leaf in Doon valley.
Results/Recommendation :
· The application of N2P3K2 (250 kg: 120 kg: 110 kg/ha/yr) produces the best result with respect to growth characters. The growth parameters of both the spring and autumn seasons showed the maximum leaf yield (4502.3) and shoot length (180.3 cm) when 10 kg Biofertilizer along with 50% recommended dose of NPK is given.
· The maximum number of spores (1016.7/50 ml of soil) was recorded in S1635 with only 44.7% root infection.
· The root infection in S146 variety by applying different doses of FYM was also observed. It was found that the treatment without FYM has shown average maximum infection (20.8%)
· It has been observed that by the application of 7 kg VAM/acre can minimize 50% use of FYM without affecting the quality of sapling. The sapling shoot biomass (240.0 g), root length (52.3 cm), shoot length (157.0 cm), root biomass (55.0 g) and fresh weight/sapling was recorded in treated sapling in comparison to 140.0 g, 36.0 cm, 102 cm, 20.0 g in control respectively during monsoon nursery 2003
· In treatments 50% recommended dose of FYM was given along with VAM=20 kg/bed (2.4 m x 1.2 m) and the dose of chemical fertilizers will be 250N: 120P: 110K.
Technologies Developed :Integrated dose of chemical fertilizers and Biofertilizers
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Development of economically viable module of mulberry plantation for hill and tarai region.
Personnel : Singh BD, Singh PK, Ramakant, Chakrabarti S
Project Period :2000-2005
Objectives :To develop an economically viable module of mulberry plantation for hill region.
Results/Recommendation :On the basis of three years (2001-2003) data collected during two crops an economically viable module of mulberry cultivation was developed. In the module it has been incorporated that the mung in kharif and lentil in rabi can be successfully grown as intercrop in mulberry plantations (spacing :8'+(2'+2') in Dehradun area. The income generated from cocoon production was Rs.18032 and in addition Rs.14,046 was earned from sale of intercrops. This module is recommended for Dehradun area.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :All India Coordinated Experimental trials for Mulberry (AICEM).
Personnel : Baksh S, Khan AA
Project Period :2000-2004
Objectives :CSB, Bangalore has selected CSR&TI Pampore, RSRS, Miransahib, Jammu and RSRS, Sahaspur as mulberry variety authorization test centres under All India coordinated experimental trial for mulberry (AICEM).
Results/Recommendation :As regards leaf yield, it was found to be the highest in MV8 (30.490 kg/plot) being statistically at par with local check (30.358 kg). In general, the moisture content was about 70%. The leaf shoot ratio was the highest in local check (67.46%), which was highly significant over the rest. The combined leaf yield of spring and autumn'04 was the highest in MV8 (15.802 MT/ha) which was however, non-significant over national check (14.816 MT/ha), local check (14,090 MT/ha) and MV1 (13.693 MT/ha).
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative evaluation of mulberry trees raised through seed and cuttings.
Project Period :2001-2004
Objectives :To study the mulberry trees raised through seed ad cuttings.
Results/Recommendation :The experimental trial has been taken up on existing seven years old Chakmajra trees raised through cuttings and seedlings. Trees raised through cuttings highest ERR/10,000 larvae (12,600 kg) was recorded in T3 under S4 while among trees raised through seedlings highest ERR/10,000 larvae (13,050 kg) with highest single cocoon weight (1,429 g) was recorded in T2 under S4.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on quality evaluation of mulberry trees grown under different conditions.
Personnel :Tripathi PM, Anil Dhar, Singhal BK, Bindroo BB
Project Period :2001-2004
Objectives :To evaluate the leaf quality of mulberry trees under different input and management regimes for healthy cocoon production through bioassay.
Results/Recommendation :
· Regular cultural operations were attended to pruning treatment to the trees was restored and inputs (FYM/NPK) were applied to the trees as per treatment schedule.
· Bioassay results suggested:
· Irrespective of the type of plantation, the larval period was reduced by 6 days 17 hours and 3 days 7 hours during spring and autumn respectively with improvement in silkworm economic parameters.
· The highest shell ratio (18.92%) was recorded in trained trees during spring and 18.78% during autumn.
· There exists similarly in rearing parameters in cutting and seedling raised trees.
· The seedling raised mulberry showed 28.13% of disease index as against 34.79% in cutting raised Chakmajra trees.
· The study therefore, suggested popularization of chawki rearing concept and trained mulberry trees cultivation practices under recommended package at farmers level through RECs/DOS.
· It has been found that the highest moisture in mulberry leaf was recorded in input treatment I4 which is FYM @ 10 MT/ha/yr + NPK @ 50:25:25 kg/ha/yr with N2 in 2 equal split doses with highest moisture retention capacity after 6hrs and 12hrs. In spring and autumn seasons and irrespective of type of plantation, the larval period was reduced by 6 days 17 hrs. and 3 days 7 hrs during spring and autumn respectively, with improvement in silkworm economic characters.
· It is recommended to apply FYM @ 10 MT/ha/yr + NPK @ 50:25:25 kgs/ha/yr with N2 in two equal split doses, which gives good mulberry leaf quality.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Supply of mulberry leaves and planting materials.
Personnel : Singh PK, Singh BD
Project Period :2001-2002
Results/Recommendation :During this period under report a total of 8338.00kg mulberry leaves were produced which were supplied to sericulture section and to adopted farmers for rearing besides utilization in moriculture section for bioassay studies of different experiments. A total of 13.99 quintals of mulberry cuttings of S146 were supplied to various government agencies and NGO.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effects of biofertilizer on mulberry leaf.
Personnel :Singh PK, Rajat Mohan, Ramakant, Juyal AC, Saraswat SB, Singh BD
Project Period :2001-2003
Objectives :To evolve a suitable agronomical package of practices to improve quality and quantity of mulberry leaves.
Results/Recommendation :The number of leaves/branch (39.74) and number of branches/plant (10.35) were recorded maximum in treatment T6 (control) and T4 (20 kg BF/ha/crop). The leaf yield (7698.98 kg/acre) and shoot length (174.9 cm) was also recorded maximum when the data was pooled for both the seasons of all three crops.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on nature of sprouting of winter buds of the selected genotypes to regulate silkworm rearing.
Personnel :Baksh S, Darzi GM
Project Period :2001-2005
Objectives :To study sprouting behaviour of the winter buds and leaf shedding in 11 genotypes.
Results/Recommendation :Under the impact of severe winter conditions, all the genotypes remained in a state of dormancy from November till next spring. The active phase was heralded by swelling and subsequently by bursting (sprouting) of winter buds in second fortnight of March. The initiation of sprouting in C4, Chinese white, Okinawa being generally earlier than the rest by a few days.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Use of biofertilizers in mulberry cultivation-Effect of N2 fixing bacteria on mulberry saplings.
Personnel :Rajinder Kour, Mir MR, Khan MA, Zagar MY
Project Period :2001-2005
Objectives :To study the effect of biofertilizers in mulberry cultivation and to maintain soil and plant health at a low cost.
Results/Recommendation :It was found that the use of biofertilizers can help in the curtailment of chemical fertilizers upto the extent of 50%. As per the suggestions of RAC of the Institute, data was also recorded on the rooting parameters of the saplings at both the identified locations, viz., CSR&TI, Pampore and P4 BSF Manasbal.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of VAM inoculation on the growth of mulberry saplings/Mycorrhizal studies in respect of improvement in quality and quantity of mulberry leaves..
Personnel :Rajinder Kour, Mir MR, Khan MA, Zagar MY
Project Period :2001-2005
Objectives :To evolve a suitable agronomical package of practice to improve quality and quantity of mulberry leaves.
Results/Recommendation :Significant difference was found among the different treatments. Based on the conclusion drawn from the tests conducted during the study period at both the locations one on farm trial (OFT) as outlined below has been approved.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of autumn leaf plucking on growth and yield parameters of mulberry.
Personnel :Mir MR, Rajinder Kour, Khan MA
Project Period :2001-2004
Objectives :To find out whether there is any effect of leaf plucking during autumn on mulberry plants.
Results/Recommendation :The plantation was maintained as per the recommended package of practices. Observations recorded on various parameters have shown that autumn leaf plucking has an adverse effect on the yield and growth of mulberry during the following spring. Damage due to frost 2.80% and 0.68% in the plants of Goshoerami and Limoncina leaving the leaf unplucked as against 20.62% in Goshoerami and 14.40% in Limoncina when the leaf was completely plucked.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Bag grafting technique for quick raising of saplings of poor rooting varieties using hardwood stem cuttings of good rooters as stock.
Personnel :Baksh S, Khan MA, Mir MR, Darzi GM
Project Period :2002-2003
Objective : To develop bag graft technique for quick raising of mulberry saplings.
Results/Recommendation :The success rate in terms of survival was 53.60%, which was very similar to those of the grafts raised by the trainees at the main Institute, Pampore. The grafts at Manasbal exhibited luxuriant growth attaining a height of about 2.5 m in general. Most of the saplings were between 1.5-3.00 m in length.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Pilot study-Testing of technology of CSR&TI, Mysore (Trial of mulberry varieties in Doon valley for their assessment as trees).
Personnel : Singh BD, Rajat Mohan, Khan MA
Project Period :2002-2005
Objectives :To evaluate the promising mulberry genotypes of CSR&TI, Mysore for northern region.
Results/Recommendation :The saplings of V1, MR2, RFS175 and BR2 along with S146 as control were planted in July 2002 at the distance of 8' on the periphery of plots of 30'x30' to grow them as trees and their performance will be evaluated as trees. The trees are in establishment phase.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Quality evaluation of mulberry trees grown under different condition-Evaluation of leaf quality of trained and untrained mulberry trees grown under different conditions.
Personnel :Tripathi PM, Anil Dhar, Singhal BK, Bindroo BB
Project Period :2003-2005
Objectives :Bioassay for quality evaluation of mulberry leaf during spring.
Results/Recommendation :Bioassay results suggested: Irrespective of the type of plantation, the larval period was reduced by 6 days 17 hours and 3 days 7 hours during spring and autumn respectively with improvement in silkworm rearing parameters.
· The highest shell ratio was recorded in trained trees during spring and 18.78% during autumn.
· There exists similarity in rearing parameters in cutting and seedling raised trees.
· The seedling raised mulberry trees showed 28.13% of disease index as against 34.79% in cuttings in cuttings raised Chakmajra trees.
· The study, therefore, suggested popularization of chawki rearing concept and trained mulberry tree cultivation practices under recommended package at farmer’s level through RECs/DOS.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Package of practices for mulberry cultivation on sloppy land in hilly areas of Uttaranchal.
Project Period :2003-2004
Results/Recommendation :Design and layout of experimental trial was made in consultation with statistician. Land was prepared and 45cm3 pits were dug 8'x8' spacing. One-year-old mulberry saplings of S146 genotype were planted during July 2003. Each pit was treated with insecticide and FYM applied. After plantation, pot irrigation was given followed by recommended cultural practices from time to time for establishment of mulberry trees. This will be continued for next year till mulberry trees are established.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Stability of rooting in mulberry cuttings under commercialization in Jammu division.
Project Period :2003-2004
Results/Recommendation :The experiment has been repeated by planting stem cuttings at five sites during winter season. Data on sprouting after 30, 60 and 90 days and survivability after 120 and 150 days has been recorded. In addition, height of the saplings at all the sites has been recorded from the monsoon plantation. The information on sprouting after 30 and 60 days after planting from the winter plantation has also been recorded. The work has been carried out as per the schedule of activities.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Mulberry shoot harvesting technology.
Project Period :2004-2005
Objective : To develop a economically viable mulberry shoot harvesting technology.
Results/Recommendation :Mulberry shoot harvesting technology for successful autumn rearing as developed was successfully demonstrated at farmers level covered under operational field areas under REC, Sujanpur, Hoshiarpur, REC,Barnoti and Sub-REC, Tikri. A total of 97 beneficiaries, including farmers and staff were covered during autumn 2004 season.
Source of Information :Annual Report:2004-05
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Mulberry Physiology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Leaf analysis in different mulberry varieties-Studies on chlorophyll estimation of different mulberry varieties.
Personnel :Chakrabarti S, Bhakuni BS
Project Period :1982-1983
Objectives :To conduct quantitative and qualitative chemical analysis of mulberry leaves of different varieties.
Results/Recommendation :A study reveals that chl 'a' is maximum in Tsukasakawa (30.070 mg/g) followed by Obawase (27.61 mg/g) chl 'b' is maximum in Tsukasakawa (3-0.070 mg/g) followed by Obawase (24.26 mg/g) and minimum in Kokuso-21 (28.475 mg/g). The total chlorophyll is recorded maximum in Tsukasakawa (56.405 mg/g) followed by Obawase (51.970 mg/g) and minimum in Goshoerami.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of different types of mulberry plantation through bioassay studies.
Personnel :Tripathi PM, Anil Dhar, Bindroo BB
Project Period :1999-2000
Objectives :To know the quality superiority of mulberry leaf amongst different plantation types and under different input regimes through bioassay.
Results/Recommendation :The results suggested the superiority of treatment T1 over T6. The larval period was 26 days 5 hrs in T1 as against 29 days. In T6 the highest larval weight of 48.0 g, survival of 96.80% and shell ratio of 17.34% was recorded in T1 as against T6 with larval weight of 31.50 g, survival of 92.40% and shell ratio 16.08%. The yield/10,000 larvae were also highest with 14.960 kg in T1 as against 11,560 kg in T6 (control). Further it was found that mounting of worms on plastic collapsible mountage was better than local mounting.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on mulberry leaf nutritional quality under different training types of sub-tropics.
Personnel : Singhal BK, Anil Dhar, Tripathi PM
Project Period :1999-2002
Objectives :To develop complete package for production of leaf with superior quality.
Results/Recommendation :
· During spring season, the quality leaf was found in bush type of plantation under the spacing of 3'x3'. The leaf analysis revealed 2.47 mg/g of fresh weight chlorophyll ‘a’ content with protein content as high as of 22.61% under this spacing. Ascorbic acid was 2.43%, which speaks for good quality mulberry leaf as ascorbic acid is not synthesized inside the silkworm body.
· Untrained trees again revealed comparatively poor leaf quality with protein content as low as only 16.10%. Ascorbic acid was low and feeding such leaf to silkworms may not be much suitable. Overall study revealed quality mulberry leaf under bush type of plantation with spacings of 3'x3' as compared to dwarf, trained trees and untrained trees. The leaf quality of untrained trees is found inferior due to no training and inputs.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on qualitative and quantitative improvement in mulberry leaf production by application of plant growth regulators.
Personnel :Rajat Mohan, Juyal AC, Dhingra RK, Gupta YK, Sumbli SN, Ramakant, Singh PK, Singh BD, Chakrabarti S
Project Period :1998-2003
Objectives :Identification of suitable PGR and its concentrations for improvement of mulberry leaf production and other characters with special reference to growth retardants.
Results/Recommendation :
· The experimental findings showed that the CCC foliar application led to increase in chlorophyll content of treated leaves. Higher moisture content increases, maturity period of leaves increased to 10-15 days. Nitrogen content, Zn, Fe, & Mn were also higher in treated series. Shell ratio % higher in cocoons formed from silkworm fed with CCC treated leaves.
· CCC (2-Chloroethyl trimethyl ammonium chloride) identified as potential chemical for growth manipulation of mulberry and its 10 ppm concentration recommended for commercial use as foliar spray for qualitative improvement of mulberry leaves.
· 2-Chloroethyl trimethyl ammonium chloride had beneficial effect on the different growth parameters of mulberry. The maximum leaf yield of 712 g/plant was recorded.
Source of Information :Annual Report:2000-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Response of mulberry to CCC (2 Chloroethyl trimethyl ammonium Chloride) foliar application - Response of mulberry to MH (Maleic hydrazide) foliar application. Bioassay with treated and untreated leaves.
Personnel :Rajat Mohan, Juyal AC, Ramakant, Singh PK, Singh BD
Project Period :2000-2003
Objectives :Identification of suitable PGR and its concentration for improvement in mulberry leaf production and other characters with special reference to growth retardants.
Results/Recommendation :
· The data collected revealed that the CCC had beneficial effect on different growth parameters of mulberry. Based on the data it has been found that 10ppm is the economic concentration and is recommended for commercial use. Agrovet should be added @ 0.5 ml/litre as surfactant and synergist. However, all other concentrations (5-100 ppm) also had positive impact on the moisture (%) and chlorophyll content of the plants.
· The experimental findings showed that CCC foliar application led to:
Ø Increase in chlorophyll content of treated leaves.
Ø Higher moisture content in treated leaves.
Ø Maturity period of leaves increased to 10-15 days.
Ø Nitrogen content was higher in treated series.
Ø Zn, Fe and Mn were also higher in treated series.
Ø SR% was higher in cocoons harvested from silkworms fed with CCC treated leaves.
Source of Information :Annual Report:2002-03
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MULBERRY PATHOLOGY
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of some fungicides on the fungal disease of mulberry.
Project Period :1988-1989
Objectives :To study the effect of some fungicides on the fungal disease of mulberry.
Results/Recommendation :It was seen that unlike the insecticides, the use of fungicides under observations did not prone to be toxic and even after first day of spray, the % survivability at mounting was found to be 64.49 and 57% from leaves treated with fungicidal formulation 2nd, 3rd and 4th day respectively. This was in comparison with 82% survivability rate with worms fed from control plants.
Source of Information :Annual Report:1988-89
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Prevalence, severity and distribution of mulberry/silkworm pests and diseases in J & K State.
Personnel : Sunita Mukherjeee
Project Period :1990-1994
Objectives :To judge the relative importance of diseases/pests and also to determine the strategy of control measures against it.
Results/Recommendation :The severity of powdery mildew appears to be more than that of leaf spot. The incidence of both these diseases are more during the month of October in comparison to September. Variety Berhampore was found highly susceptible and the incidence of disease noted was significantly higher than what was observed in other varieties.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Preliminary studies on various mulberry diseases.
Project Period :1990-1991
Objectives :To carry out preliminary study on powdery mildew, leaf spot, tukra disease and leaf defoliates in K2, Chinese white and Sujanpur local plantation.
Results/Recommendation :Kanva2 effect of leaf spot was highest whereas in Chinese white and Sujanpur local effect of powdery mildew as well as tukra disease was maximum.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Chemical control of powdery mildew and leaf spot diseases in mulberry.
Project Period :1990-1994
Objectives :To find out the toxicity effect of the fungicides used.
Results/Recommendation :It was observed that two sprays schedule of Bavistin at 1000 ppm concentration gave the maximum reduction of 80% in the incidence of powdery mildew as compared to control. Further, Topsin with single spray gave the minimum reduction with just 83% only as compared to control. The analysis of data also revealed that Bavistin at 1000 ppm (2 sprays) is significantly effective than rest of the treatments applied.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on seasonal incidence of mulberry diseases and their control measures.
Personnel :Ramakant, Rajat Mohan, Juyal AC, Singh PK, Singh BD
Project Period :2000-2001
Objectives :To investigate the loss in leaf production due to diseases caused by different pathogens, timing, degree of incidence and its control to improve productivity and quality of mulberry leaf.
Results/Recommendation :The data revealed that disease incidence and percent disease index of tree was almost nil whereas bush was full of disease with closer spacing (DI 12.2%, PDI 6.6%) and wider spacing (DI 7.4%, PDI 3.9%). In unpruned garden disease incidence was more (DI 20.8%, PDI 13.8%) during autumn crop. During spring crop tree, wider spacing and pruned garden, disease incidence was less as compared to bush, closer spacing and unpruned garden.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on seasonal incidence of mulberry diseases and their management - Studies on seasonal incidence of mulberry diseases.
Personnel :Ramakant, Rajat Mohan, Juyal AC, Chakrabarti S
Project Period :2003-2005
Objectives :To study the seasonal incidence of mulberry diseases.
Results/Recommendation :The results of the field survey on different fungal diseases revealed that incidence of leaf spot disease from August to September. The peak incidence was noticed in September (PDI 10.0%), powdery mildew disease was prevalent in the months of November and December. Maximum powdery mildew incidence was found during the month of December (PDI 21.9%) in unpruned and late leaf shedder mulberry garden (V1 genotype) occurrence of rust was found negligible. In addition to these diseases, leaf blight was reported in the month of particularly on S1635 and S1 genotypes.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of leaf blight infected leaves on silkworm rearing.
Project Period :2004-2005
Objectives :To study the effect of feeding leaves with leaf blight.
Results/Recommendation :Feeding of the larvae with leaf blight infected leaves caused decrease in ERR by number (12.2%) and by weight (21.8%). A decrease in single cocoon weight (10.9%), single shell weight (42.2%) and silk ratio (8.4%) was also observed in the lots fed with infected leaves in comparison to the lots fed with healthy leaf.
Source of Information :Annual Report:2004-05
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Silkworm Breeding and Genetics
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on Russian plans of race fixation.
Project Period :1964-1971
Objectives :To study the suitability of Russian plans of silkworm breeding.
Results/Recommendation :
· Performance of the races has been satisfactory with average hatchability as 88.91% and 85.60% the number of larvae brushed per dfl as 643 and 676 respectively.
· The length of the filament averaged to 908.6 and 1020.9 mts in RP I and RP II with denier average to 2.95 in both the races.
Source of Information :Annual Report:1970-71
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on sex-limited character in silkworm and its combining ability with other races for field exploitation.
Personnel : Tikoo BL, Dhar KL
Project Period :1966-1981
Objectives :
· Introduction of sex-limited character found in a Russian race called Sanish-18.
· To transfer the sex-limited characters restricted to females of the race Sanish-18 into some pure races.
Results/Recommendation :Sex-limited lines C.Nichi (SL) and HS6 (SL) lines were crossed among themselves and with two P3 races. Their performance has been satisfactory and encouraging. The calculated yield/100 dfls workout to from 53.2 kg in the combination C.Nichi (SL) x HS6 (SL) to 75.9 kg in the combination J112 x C.Nichi (SL). Among the 10 combinations tried in this experiments in 9 combinations the calculated yield works out to between 65.1 to 75.9 kgs.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Experiment towards the evolution of sex-limited substitution lines for parental races.
Project Period :1966-1974
Objectives :To transfer the sex-limited character of the females of Sanish18 into some pure races, J112, J122, C108, C110, C.Nichi and HS6.
Results/Recommendation :C.Nichi sex- limited line has given consistently good performance recording an yield of 17.28 kgs and 8580 cocoons per 10,000 larvae brushed after 3rd moult. This line also gave the best results for cocoon weight and shell weight. The races sex-limited C.Nichi is presently being supplied for large-scale utilization in multivoltine states. The sex-limited lines of C110, J112 were very poor in their cocoon characters and have since been discontinued. C.Nichi race is showing very satisfactory performance.
Source of Information :Annual Report:1973-74
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on race improvement studies-Improvement of C108, C110 and J122, (C110 x Fuji Sakura) x (C110 x C110), (J122 x Belkokona) x (J122 x J122).
Project Period :1967-1973
Objectives :Improving the three races C108, C110 and J122 by crossing them with Diazo, Fuji, Sakura and Belkokona-I.
Results/Recommendation :Hatching percentage ranged from 76.47 to 86.94 and yield from 13.27 to 15.38 kgs, with an ERR of 72.63 to 93.44%, over 3rd moult. As compared to the original parents these lines have not given encouraging results and have therefore been discontinued.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Recommendation of races for release.
Project Period :1967-1972
Objectives :To find out suitability in new parental races at Riasi in Jammu.
Results/Recommendation :Board's Research Co-ordination Committee approved these races such as B39, B40, Manri, Chaung Naung to recommended to the field. The characters of the races are hatching percentage ranged from 81.50 to 92.54. Weight of the 10 mature larvae ranged from 37.5 to 47.0gms. The average yield of good cocoons per 10,000 larvae brushed ranged from 9.6 to 12.2 kgs and shell ratio from 17.3% to 20.97%. The length of the filament ranged from 858.3 to 1173.3 mts and the denier from 2.6 to 3.2, all are white cocoons.
Source of Information :Annual Report:1971-72
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Combining ability study of bivoltine races for their suitability.
Project Period :1967-1995
Objectives :To find out the hybrid performance from the breeding plans and categorise them as plain constricted, plain-oval, marked-constricted and marker-oval lines.
Results/Recommendation :Jam composite V x V1 and its reciprocal are compare with the local double hybrid and Jam composite V x V1 and its reciprocal are superior for shell percentage and shell weight.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Maintenance of parental races and supply of P3 dfls.
Project Period :1968-1969
Objectives :To maintain parental races and supply of P3 dfls.
Results/Recommendation :Maintaining parental races as also producing P3 layings utmost care is taken also to keep the viability of the races by subjecting them to interbred and inter crossing besides rigorous selection at every stage and live test.
Source of Information :Annual Report 1968-69
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on hill amelioration of races.
Project Period :1968-1973
Objectives :
Results/Recommendation :During spring rearing the race HS6 gave better performance than C.Nichi recording a high yield of 19.54 kgs and 9205 cocoon per 10,000 larvae, out of 3rd moult compared to 15.46 kgs and 8653 cocoons in C.Nichi. C.Nichi recorded a higher hatching percentage of 95.38 compare to 83.91% in HS6. The average weight of single cocoon was 2.06gms and 1.44 gms in HS6 and C.Nichi respectively.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on race Fixation and experimental programme (C108 x Diazo) x C108.
Project Period :1968-1972
Objectives :To introduce the hardiness and the shorter larval period of the race Diazo into the race C108.
Results/Recommendation :During spring season of 1971 the BF11 generation of the marked and plain lines was reared with satisfactory performance. As compared to Diazo and is quite comparable with that of C108.
Source of Information :Annual Report:1971-72
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance and preservation of silkworm germplasm.
Personnel :Tikoo BL, Iyengar MNS, Dhar KL, Gupta BK, Bakshi RL, Ahsan MM, Razdan JL, Quadir SM, Nissar Ahmed, Singh KN, Ichpal Singh, Sultan Bhat, Bhat MA, Sheikh GN, Khan MA, Sarwar Khan G, Mir MR, Sultan M
Project Period :1968-2005
Objectives :Collection and maintenance of bivoltine breeds of different origin.
Results/Recommendation :The section is maintaining 146 silkworm races/strains of different origin in the germplasm bank as basic stock for exchange for genetic material and for utilization in evolution of new lines. These races derive their origin from Europe, Japan, Russia and India.
Source of Information :Annual Report:1986-2006
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Race fixation, race improvement experiments.
Project Period :1969-1972
Objectives :Evolution of high yielding and more viable parental races.
Results/Recommendation :There is a positive improvement in the larval behaviour of the race. The effective rate of rearing has been 87.7% as compare to 84.70% in original C110 showing that the new race has gained stability.
Source of Information :Annual Report:1971-72
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plans for evolution of superior races-IS series.
Project Period :1971-1974
Objectives :To evolve superior races-IS series.
Results/Recommendation :The single cocoon weight ranged between 1.51 gm in the summer to 1.85 gms in spring season. Considering all the three seasons the shell percentage ranged between 19.92 to 24.94 for the series. The larval period in the spring season ranged between 26 to29 days while the weight of 10 mature larvae recorded for the same rearing season ranged between 48 to 60 gms.
Source of Information :Annual Report:1973-74
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on preparation of special crosses for trial rearing.
Project Period :1971-1972
Objectives :To study the special crosses for better productivity.
Results/Recommendation :Under this programme the station prepared some quantity of seed in reciprocal crosses between Saniish8 and saniish9, the newly obtained races from USSR. The station supplied these crosses/polyhybrids to the Basic Seed Station, Mirgund for rearing during spring 1972.
Source of Information :Annual Report:1971-72
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Race improvement studies-Improvement of C108, J112 and J122.
Personnel : Tikoo BL, Dhar KL, Kharoo VK
Project Period :1972-1979
Objectives :To revitalize the two races viz., C108 and J122 in their commercial characters by crossing them with other silkworm races superior in qualitative and quantitative characters.
Results/Recommendation :C108 and J122 by crossing with two imported hybrids, i.e., Plavae, Shunrei and Shogetsu. Various sublines were isolated from these crosses and continued their rearing during the year under report. In view of their poor yield performance they were discontinued after spring rearing 1979.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plans for evolution of superior races-PL series.
Personnel : Tikoo BL, Iyengar MNS, Dhar KL.
Project Period :1972-1980
Results/Recommendation :The sub-line PL-F was better in summer than spring rearing. The weight of 10 matured larvae was founded 46.0 gms and single cocoon weight 1.63 gms. With shell ratio of 20.35%. The better performance of these races confirms suitablility for summer.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plans for evolution of superior races-KY series.
Personnel : Tikoo BL, Iyengar MNS, Dhar KL
Project Period :1972-1980
Objectives :To evolve superior races-KY series.
Results/Recommendation :The behaviour of KY1 was found satisfactory. It recorded an average shell ratio % of 22.4 and a yield of 9.3 kgs and 10.85 kgs per 10,000 brushed larvae in spring and summer respectively. The race KY1 has marked larvae which spins elongated oval cocoons.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plans for evolution of superior races-3) Shuneri x Shogetsu (SS) Series.
Personnel : Tikoo BL, Iyengar MNS, Dhar KL
Project Period :1972-1980
Objectives :
Results/Recommendation :The line SS2 spins hard, constricted and uniform cocoons. The average yield record was 17.24 kgs per 10,000 larvae brushed with the shell ratio of 21.7% and the weight of 10 matured larvae was 45.0 gms. Out of six sub-lines SS4A, SS15A and SS15B were found satisfactory in rearing performance.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plans for evolution of superior races-4) Grappa Series (GR).
Personnel : Tikoo BL, Iyengar MNS, Dhar KL
Project Period :1972-1980
Objectives :To evolve superior GR series races.
Results/Recommendation :The yield/10,000 larvae brushed was recorded at 17.1kgs, with a single cocoon weight of 1.77 gms.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies for assessing the comparative merits of different methods of maintenance of stock races.
Project Period :1972-1973
Objectives :To establish a proper procedure for maintaining a pure race.
Results/Recommendation :One of the P3 races viz., Chang Naung was selected as the experimental material and the following treatments were adopted. A total number of seven treatments, involving combinations of mass and cellular brushing, random and selected moth mating and interbred crossing.
Source of Information :Annual Report:1972-73
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on evolution of high yielding silkworm races.
Personnel : Sahai V, Pandey VK
Project Period :1973-1983
Objectives :To evolve high yielding silkworm races suited to the agro climatic conditions of Uttar Pradesh in particular and uni/bivoltine rearing belts of India in general.
Results/Recommendation :Achievement of the project was the successful evolution of four high yielding silkworm races namely JD6, SH6, YS3 and SF19 and their commercial exploitation.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Special crosses to study performance of some specific double crosses.
Project Period :1973-1974
Objectives :To evolve better performing races for specific double crosses.
Results/Recommendation: The analysis of the data for the double hybrids showed that there is no evidence to show the better performance of these crosses. Foundational hybrids can be prepared either by using races of same or different origin without having any effect on the yield. It is quite evident that the hybrids produced out of the new races have shown very encouraging results.
Source of Information :Annual Report:1973-74
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title: Evolution of SH - Series.
Personnel :Tikoo BL, Misri SS
Project Period :1973-1980
Objectives :To evolve more number of new races in order to strengthen the programme of evolution of new races.
Results/Recommendation :Base population of Shogetsu, Hosho and many lines were abandoned in view of their erratic behaviour. Only 6 lines viz., SH2, SH3, SH5, SH6, SH10 and SH12 were continued. Among these series, the line SH5 behaved better than other lines.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Evolution of SSM - Series.
Personnel : Tikoo BL, Misri SS
Project Period :1973-1980
Objectives :To evolve more number of new races in order to strengthen the programme of evolution of new races.
Results/Recommendation : 4 lines viz., SSM1, SSM2, SSM6, SSM7 were isolated from cross Shuneri x Shogetsu. In the line SSM6, the larvae were uniform and robust having an average weight of 44.0 gms per 10 matured larvae. The yield/10,000 larvae brushed was 12.4 kgs, with shell ratio of 19.7 and an average single cocoon weight of 1.61 gms.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on rearing performance of approved races.
Project Period :1974-1975
Objectives :To study the rearing performance of approved races.
Results/Recommendation :Eight approved races are presently being maintained at the station and the seed produced from these races is supplied to various sericultural states for the production of their commercial seed. Most of the seed in these races was produced during spring and summer seasons.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production of P3 dfls.
Personnel : Tikoo BL, Dhar KL
Project Period :1974-1975
Objectives :To produce P3 dfls to supply to P2 stations.
Results/Recommendation :Under this programme of work batches for raising race breeders stock in the eight races were reared cellularly and vigorous selection was imposed at various stages with an objective to eliminate the undesirables.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production of P2 dfls.
Personnel : Iyengar MNS, Dhar KL, Sudhakaran M
Project Period :1974-1975
Results/Recommendation :P3 stock, carefully raised was reared for the production of P2 seed for meeting especially the demand of Jammu and Kashmir. Here also proper selection and care was adhered to at various stages of rearing.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production of P1 dfls.
Project Period :1974-1975
Results/Recommendation :P3 batches under this programme of work were brushed in mass beds. Only rich layings were distributed as P1 seed to the states namely Punjab and Himachal Pradesh.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on BL – Series silkworm races.
Project Period :1976-1980
Results/Recommendation :The highest shell percentage of 22.9 was recorded in BL3 followed by BL1 with 19.3% of shell ratio. Though the highest yield of 11.9 kgs; per 10,000 larvae brushed was recorded by BL3.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on T-Series silkworm races.
Project Period :1976-1980
Objectives :To evolve new races which spin oval cocoons only.
Results/Recommendation: This series has been isolated from a number of Japanese hybrids such as Taichoan, Shinki Ryoho and Kyoei Shinpaku. About 9 lines were extracted and reared the yield of cocoon/10,000 larvae brushed except in the line T21 were not satisfactory in all the T-series and were discarded.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Field trials of promising lines/hybrid combinations.
Personnel : Sahai V, Pandey VK
Project Period :1980-1982
Objectives :Replacing on economical silkworm strains.
Results/Recommendation :The promising races namely JD6, SH6, YS3 and SF19 were selected for the preparation and supply of 40,000 disease free layings each season to NSSP centre, Dehradun as nucleus seed for its seed production programme.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of silkworm races-Studies for establisation of economic characters in new races.
Personnel : Subba Rao G, Kharoo VK, Quadir SM
Project Period :1980-1981
Objectives :To study the behaviour and make selection at every stage during different rearing season of the year.
Results/Recommendation :Rearing data reveals that races behaved satisfactorily. The hatching was above 90% in some of the races. The yield/10,000/larvae brushed ranged from 9.49 kg weight and 6557 cocoons by number to 12.37 kgs/8061 cocoons. The number of cocoons per kg, varies from 627 to 699.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the performance of newly evolved strains.
Project Period :1980-1981
Objectives :To introduce better parental races into the field.
Results/Recommendation :Seven new lines have been evolved from various breeding plans and these lines are being reared, and the performance is as follows: Good hatching 85 to 94%, larval weight of 44-48.7 gms, average single cocoon weight is higher ranging from 1.54 to 1.71 gms, filament length ranging from 993 mts to 1.324 mts. Some of the newly evolved strains could be released in the field.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Fixation and isolation of new silkworm strains by breeding plan.
Project Period :1980-1981
Objectives :To bring out the desirable characters into one strain which are present in different races simultaneously by the elimination of undesirable characters from the proposed strains.
Results/Recommendation :All the lines under process of isolation are showing very good economic characters of cocoons. The filament length ranging from 1012 mts to 1261 mts and SR more than 21%. As regards the effective rate of rearing it is very high ranged in between 8400 to 9582/10,000 larvae brushed having high yield recording 12.50 kg to 15.03 kg/10,000 larvae brushed.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on improvement of P3 races.
Project Period :1980-1981
Objectives :To improve economic characters of the 9 P3 races.
Results/Recommendation :The races C100, J112, J122, Yakwei, Haulak, Chaung Naung, B40 and B39 are being annually supplied to various univoltine sericultural states of India. Some of the races have shown good combining ability when crosses are affected with different races. However, these races do not have appreciable commercial characters like high shell% and single cocoon weight etc., probably due to continuous inbreeding.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Maintenance of foreign race.
Personnel : Sahai V, Pandey VK
Project Period :1981-1983
Results/Recommendation :Among the three new races namely, SM1, SM2 and SM3 highest yield/10,000 larvae was obtained for SM1 (16.200 kgs) in autumn '82 as well as in spring '83 (18.750 kgs). Yield for SM2 and SM3 was respectively 14.950 kgs and 13.225 kgs during autumn '82 and 17.550 kgs and 17.170 kgs in spring '83.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Introduction of hybrid and polyhybrid combinations.
Project Period :1982-1983
Objectives :To introduce hybrid and polyhybrids in the field.
Results/Recommendation :The highest cocoon yield/100 dfls was recorded for hybrid JD6 x SF19 (70.330 kg) and for polyhybrids JD6 NN6D x YS3 SF19 (76.170 kg). It was followed by SF19 x YS3 (59.449 kgs), JD6 x SH6 (50,260 kgs) and SH2 x SF19 (49.000kgs) at the next three positions for hybrid and JD6 NN6D x SF19 YS3 (74.880 kgs), SF19, YS3 x JD6 (74.440 kgs) and SF19, YS3 x NN6D (56.660 kgs) for polyhybrid combinations.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Experiment on the introduction of one additional rearing in Uttar Pradesh.
Personnel : Sahai V, Pandey VK
Project Period :1982-1983
Objectives :To introduce one additional rearing crop in Uttar Pradesh.
Results/Recommendation:Seven hybrid combinations specially prepared with AP5 (Hosa Mysore) as the female parent, were raised cellularly in 4 replications each during hotter summer months (May-June). The cocoon yield/100 dfls was as high as 70.1 kgs for combination AP5 x NN6D. It was followed by the AP5 x SH2 (69.7 kgs) and AP5 x SF19 (67.1 kgs) on the next two positions. The range for other combinations was 42.400 and 60.8 kgs.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on evolution of silkworm races.
Project Period :1982-1983
Objectives :To evolve suitable silkworm races.
Results/Recommendation :Under this programme three evolved lines viz., Barapolu x Saniish E1 lot-I, Barapolu x Saniish E1 lot-II, S36 x Chukwei were reared in spring rearing-1982. All the three lines were rejected at the time of selection due to poor performance.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on isolation and purification of new lines.
Project Period :1982-1983
Objectives :To isolate and evolve new lines of silkworms.
Results/Recommendation : Under this programme several lines were isolated from the base population of exotic hybrid races Shuko-Ryuhaku, Kinshu-Showa, Shinki Rayaku and Ashaei-Tokai. These lines are named as IB, AT, TA, ATTA series.
From the hybrid material one line was isolated which is found to be sex-limited in characters.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of new hybrid combinations under Jammu climatic condition.
Personnel : Bakshi RL
Project Period :1983-1984
Objectives :To find out newly evolved hybrid combinations, suitably under Jammu climatic conditions and in case of their positive response could be tried in field on mass scale.
Results/Recommendation :Pure races have shown poor yield as compared to their hybrid combinations. But as regards cocoon weight, shell weight and SR, the pure races have shown more or less same performance as their hybrids. However, in almost all the characters the hybrid combinations showed heterosis over the mean parent values.
Source of Information :Annual Report: 1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance of bivoltine silkworm germplasm.
Project Period :1983-2001
Personnel :Siddiqui AA, Chauhan TPS, Lochan R, Sumbli SN
Objectives : To maintain bivoltine silkworm germplasm.
Results/Recommendation :
· A total number of 44 silkworm genotypes including 22 evolved by this station were maintained following the guidelines recommended for germplasm maintenance. These races are reared during spring and autumn season.
· Among these races in GPB, eight from Karnataka, four from West Bengal, two from Kashmir and eight are exotic. The genotypes namely H56 and C.Nichi are having sex-limited characteristics dermal markings on females.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance of bivoltine breeder’s stock.
Personnel :Rao GS, Kharoo VK, Misri SS, Malik Farooq, Ahsan MM, Quadir SM, Nissar Bhat MA
Project Period :1983-1996
Objectives :
· To maintain the specific characteristics of each race.
· To maintain the vigour of the races so that high quality seed is produced after multiplication following scientific procedures and techniques.
Results/Recommendation :The races Yakwei, J122, B40, Chaung Naung, Haulak, CA2, F640, JP1B, SF19, J-Plain, CP1B, PAM109, CP1B, CC1, CSR2, Kalimpong-A, YS3, NB4D2, SH6 were maintained and used for regeneration studies following standard rearings.
Perusal of the data reveals that the fecundity was higher in CA2 (640) followed by JP1B (603) and SF19 (610) hatching was higher in J-Plain (98.85%) and larval duration (25 days) recorded in CC1. The highest cocoon weight of 2.04 g, shell wt. of 0.42 g and cocoon yield of 19.01 kg/1000 larvae was recorded in CP1B. The highest shell ratio of 22.36% was recorded in CSR2.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Combining ability studies of six evolved lines from double cross mating design.
Project Period :1984-1990
Objectives :To create a broad based gene population in the form of double cross between Japanese and Russian parents available in germplasm bank.
Results/Recommendation :After attaining homozygosity in qualitative and quantitative characters, six lines finally selected were subjected to diallel analysis in summer and autumn rearing at Pampore and Miransahib (Jammu) in 1990 to study their GCA and SCA effects.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on race improvement studies-Sister batch mating system.
Project Period :1984-1986
Objectives :To improve the performance of the existing stock races with respect to their commercial characters.
Results/Recommendation :Improved stocks will be tested for their heterosis and cocoon quality. The methodology adopted will be followed continuously for 6-7 generations, which is expected to bring about an improvement in the desired characters.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the evaluation of new genetic material/hybrids.
Project Period :1985-1986
Objectives :to evaluate new silkworm hybrids for commercial exploitation.
Results/Recommendation :Among 10 bivoltine hybrids SH6 x NB4D2 and JD6 x CS8 recorded better performance over other hybrids in respect of behaviour and suitability. An average of 83 kg/100 dfls was recorded in SH6 x NB4D2 followed by JD6 x CS8 i.e., 74.7 kg.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance of pure multivoltine stock.
Project Period :1985-1991
Personnel:
Objectives :To maintain different multivoltine races for preparation of MV x BV seed as well as demonstration purpose.
Results/Recommendation :Under this programme, five multivoltine races namely Nistari, G, M2, O and Mysore procured from CSR&TI Berhampore (West Bengal) were maintained as multivoltine stock. The highest yield/100 dfls in Nistari was recorded to be 47.9 kg and in other races the yield/100 dfls ranged between 10.5 kg to 40.2 kg.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance of P3 breeders stock.
Project Period :1988-1989
Objectives :To maintain the vigour of the races so as to yield a high quality seed after further multiplication.
Results/Recommendation :The perusal of the data revealed that the race Chaung Naung has the highest % of hatching (98.72%). Highest yield of cocoons/10,000 larvae brushed was recorded in J112 (19.94 kg), highest shell ratio of 19.27% in Yakwei.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on stabilization of isolated lines from Japanese hybrid.
Project Period :1989-1991
Objectives :To stabilize the lines for various characters.
Results/Recommendation :The isolated lines have completed seven generations of inbreeding in spring 1991. They are J(M), J(P) and J(DM) have been categorized as plain oval, marked oval and marked constricted.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on evolution of lines by hybridization.
Project Period :1989-90
Objectives :To evolve some productive lines for commercial exploitation so as to bring improvement in cocoon yield.
Results/Recommendation :After first recurrent and directional selection from the heterozygous population in respect of morphological and quantitative characters imposed at F6 generation and continued for subsequent generation. After the completion of F11 generation, 44 lines were selected for further screening.
Source of Information :Annual Report:1989-1990
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Silkworm breeding studies-Silkworm breeding for evolution of races suitable for different seasons.
Personnel : Kumar P, Siddiqui AA, Lochan R, Sumbli SN
Project Period :1990-1997
Objectives :To evolve new promising bivoltine races.
Results/Recommendation :Perusal of the data reveals that all the combinations except Line 4 x NB4D2 performed better than the ruling hybrid (control) i.e., SH6 x NB4D2. Cocoon produced in comparison test rearing were also sent for reeling test to CSTRI, Bangalore and it was observed that Line1 x NB4D2 and Line 4 x NB4D2 performed better in respect of filament length, denier and reelability (%) as compared to the ruling hybrid.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on stabilization of autumn bivoltine crop.
Project Period :1990-1991
Objectives :To stabilize autumn bivoltine crop.
Results/Recommendation :Silkworm breed best suited under autumn conditions in Jammu is also required to be evolved, for which the silkworm breeding plan under the project of Improvement of silkworm Bombyx mori L is under implementation in one hand, on the other the existing races will be screened on the basis of their performance.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Combining ability studies of seven evolved lines from partial diallel selective mating design.
Project Period :1990-1991
Objectives :To study their GCA and SCA effects.
Results/Recommendation :Manifestation of heterosis in the specific crosses in cocoon weight and shell weight over mid and better parent due to presence of over dominance as is evident from the results obtained.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance of germplasm bank of uni/bivoltine silkworm races.
Project Period :1990-1991
Objectives :To maintain germplasm bank of uni/bivoltine silkworm races.
Results/Recommendation :The station is maintaining 125 univoltine/bivoltine silkworm races, a good number of which are of exotic origin and the rest are the races/lines evolved from time to time in India.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on introduction of MV x BV crop in Jammu region.
Project Period :1990-1991
Objectives :To find out the pruning schedule for tree plantation for maximization of the cocoon crop.
Results/Recommendation :Different MV x BV combinations will be tried and screened to identify the specific cross combination suitable to the region.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori.
Personnel :Razdan JL, Siddiqui AA, Bali RK
Project Period :1991-1992
Objectives :Evolution of high yielding silkworm races with higher economic traits with special stress on higher shell weight.
Results/Recommendation :Combining ability analysis revealed that PAM109 have significant GCA effects on the desired direction in larval weight, cocoon weight and filament length whereas CC1 has positive significant GCA effects on cocoon yield/100 dfls, shell weight and filament length, Pam101 and JD6 have negative significant GCA effects for larval duration indicating shorter larval duration compared to other parents.
Source of Information :Annual Report:1991-92
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on improvement of Jam races.
Project Period :1991-1994
Objectives :To improve Jam races.
Results/Recommendation :Laboratory observation of the parental 15 Jam races revealed that they possessed very weak shell with shell % around 15 only. Although in the Jam composite populations thus raised, an all round improvement has been achieved. The cocoon yield/10,000 larvae brushed recorded has 12.53 (kg) in Jam composite V by weight and 8309 by number and 14.2 (kg) in Jam composite V1 by weight and 8267 by number. In Jam composite V1 the shell percentage has increased to 18.4% while as in Jam composite it has touched to 16.3% only at F3 generation of breeding.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori - Evaluation of high yielding silkworm races with higher shell weight.
Personnel : Razdan JL, Siddiqui AA, Bindroo BB, Bali RK
Project Period :1991-1996
Objectives :To study the effect of selection especially in shell weight which is the main thrust area in these breeding populations.
Results/Recommendation :All the four lines, namely RSJ1, RSJ2, RSJ3 and RSJ4 have shown uniformity in their larval and phenotypic characters of the cocoons during spring 1996 rearing.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of Jam races-Rejuvenation of existing Jam races.
Project Period :1991-1996
Objectives :To maintain stock races by the State Sericulture Department, Jammu has for producing commercial hybrid seed from some of the Jam races for Jammu region.
Results/Recommendation :Improvement in almost all of the metric traits have been achieved in all the 15 Jam races after putting five generations of selection. The shell weight and SR% is improved in the four Jam races being used as parents for the preparation of double cross for commercial utilization in Jammu region.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on grading up of two Jam composite populations.
Project Period :1991-1996
Objectives :To improve upon the metric traits particularly shell weight.
Results/Recommendation :Jam composite populations 5th and 6th after crossing with Japanese hybrids have completed F6 generations in Autumn 1996. Batch and individual selection towards the recipient was followed to improve upon the metric traits particularly shell weight. The rearing performance of two Jam graded up populations and their hybrid testing results are indicated in Tables.
Rearing performance of two graded up Jam composite during autumn 1996.
Sl.
No.
Breeding Population
Generation
Yield/10,000 larvae
Single cocoon weight (gm)
Single shell weight (gm)
Shell ratio %
By No.
By wt (kg)
1
RSJ-5
F6
7406
13.243
1.809
0.343
18.96
2
RSJ-6
F6
8600
13.800
1.814
0.409
22.55
Hybrid testing performance of graded up Jam population RSJ-5 and RSJ-6 during autumn 1996.
Sl.
No.
Breeding Population
Generation
Yield/10,000 larvae
Single cocoon weight
(gm)
Single
shell weight (gm)
Shell ratio %
By No.
By wt (kg)
1
RSJ-5 x RSJ-6
F6
7440
14.550
2.123
0.464
21.88
2
Control
PAM01 x NB4D2
F6
8430
12.510
1.687
0.323
19.15
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on bivoltine rearing.
Project Period :1993-1994
Objectives :To rear different parental stock races for supply of P1 and F1 seed to Punjab State Sericulture Department as well as to different centres under AICE programme.
Results/Recommendation :During autumn season only two races namely NB4D2 and PAM101 were reared under departmental rearing. Performance of NB4D2 was better as compared to PAM101 in terms of Average yield/100 dfls. The average yield of 78.45 kg/100 dfls in NB4D2 and 64.65 kg/100 dfls in PAM101 was recorded respectively.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori L- Evolution of high yielding silkworm races with higher economic traits with special stress on higher shell weight.
Project Period :1994-1995
Objectives :To fix new series of derivatives for higher shell weight through selection.
Results/Recommendation :The lines selected at F6 generation recorded cocoon yield/10,000 larvae brushed in the range 13.10 (Kgs) to 16.9 (kg) and by number in the range of 7867 to 9548.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori L - To assess performance of genotypes in different seasons.
Personnel : Quadir SM, Khan MA, Trag AR, Mir Nisar
Project Period :1994-1998
Objectives :To identify season specific genotypes.
Results/Recommendation :Under this experiment six genotypes namely JP1A, KY1, SM1, JP1B, CP1B and J-plain have been reared thrice in summer season, autumn and spring season. The three years data was pooled season wise and data evaluated by using Evaluation Index method. By this method the two top ranking genotypes identified for different seasons are:
For spring season: JP1B and J-plain.
For summer: KY1 and J-plain.
For autumn season: CP1B and KY1.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of high yielding silkworm races with high shell ratio.
Personnel : Quadir SM, Nisar, Sarwar Khan, Khan MA, Ahsan MM
Project Period :1994-1999
Objectives :To evolve new lines with improved shell ratio, renditta and thereby reduce cost of production of silk.
Results/Recommendation :Lines isolated have completed F9 generation. The lines are responding well to the selection pressure, homozygosity in cocoon characters has been achieved. The isolated lines recorded shell ratio ranging from 19.43% to 22.71% and pupation rate 94% to 98%.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding of Japanese hybrids-Evolution of hypersericigenous lines for spring utilization.
Personnel : Raina SK, Khan RA, Bali RK, Bindroo BB
Project Period :1994-2000
Objectives :To isolate promising lines with high shell ratio from segregating populations suitable for Jammu region.
Results/Recommendation :Nine breeding populations/lines viz., RSJ7, RSJ8, RSJ9, RSJ10, RSJ12, RSJ13, RSJ14 and RSJ15, isolated from Japanese hybrid material have now achieved stability with respect to targeted metric traits. During spring 2000, with respect to ERR (by number and weight), single cocoon weight, single shell weight and SR % was recorded in the range of 7960 to 9491, 15.048 kg to 18.731 kg, 1.567 to 2.012 g, 0.354 g to 0.481g and 18.37% to 23.84% respectively. Out of above nine lines four viz., RSJ11, RSJ13, RSJ14 and RSJ15 have been selected for combining ability test and future maintenance.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Isolation of basic lines for specific characters
Personnel : Raina SK, Khan RA, Bali RK, Bindroo BB
Project Period :1994-1999
Objectives :To evolve hypersericigenous lines instead on a particular trait.
Results/Recommendation :Nine breeding populations/lines viz., RSJ7, RSJ8, RSJ9, RSJ10, RSJ12, RSJ13, RSJ14 and RSJ15, isolated from Japanese hybrid material were further advanced by another generation during spring 1999. ERR% of the lines was recorded in the range of 91.33 to 99.33 single shell weight ranged from 0.31 to 0.37g except RSJ15 with 0.28 and SR% in the ranged from 21.67 to 23.84%
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the identification of season specific bivoltine hybrids.
Project Period :1994-1998
Objectives :To identify F1 crosses with high yield and silk ratio for commercial exploitation in different seasons.
Results/Recommendation :Under this experiment 15 F1, along with control have been reared thrice in each season viz., spring, summer and autumn seasons. The three years data was pooled seasonwise and data was evaluated by using "Evaluation Index Method" of Mano et al. By this method the two top ranking season specific hybrids identified for different seasons are:
For spring season : CP1 B x JP1B, SM1 xJP1B
For summer season : CP1B x J-Plain KY1 x JP1B
For autumn season : CP1B x JP1B, KY1 x JP1B.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding plan for evolution of bivoltine races under JICA.
Personnel : Lochan R, Kumar P, Siddiqui AA, Sumbli SN, Chouhan TPS
Project Period :1996-2000
Objectives :To evolve new promising bivoltine races.
Results/Recommendation :Fourteen silkworm genotypes Dun7 to Dun20 were reared in F11 and F12 generation during spring and autumn season. Dun17 and Dun18 recorded higher cocoon shell ration of 23.92% and 22.83% respectively during spring and 23.04% and 22.25% respectively during autumn season. Dun8 and Dun9 also performed better in respect of shell ratio and cocoon yield by number during autumn season. Genotypes Dun7, Dun8, Dun9, Dun=, Dun15, Dun17, Dun18, Dun19 and Dun20 have been involved in hybrid testing study.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori L-Isolation of silkworm lines from exotic polyhybrids for hardiness.
Personnel : Quadir SM, Nisar Ahmed, Sheik GN, Khan MA
Project Period :1997-2000
Objectives :To achieve maximum recombination mass rearing and random mating was followed upto F3 generation.
Results/Recommendation :Lines isolated have completed F9 generation. The lines are responding well to the selection pressure, homozygosity in cocoon characters has been achieved. The isolated lines recorded shell ratio ranging from 19.43% to 22.71% and pupation rate 94% to 98%.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on combining ability between newly evolved Mysore race with Pampore evolved lines.
Personnel : Quadir SM, Khan MA
Project Period :1997-2000
Objectives :To identify most heterotic hybrids for high yield and silk ration.
Results/Recommendation :Under this experiment 56 F1s along with control have been reared twice in each season spring, summer and autumn. The two years pooled data was evaluated by using Evaluation Index Method. By this method the top ranking hybrids identified are
For spring: CSR6 x PAM101, PAM101 x PC-70
For summer: PAM111 x PD-72, PC-70 x CSR6
For autumn: PC-70 x CSR6, PAM112 x PC-60.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Silkworm breeding for evolution of races suitable for different seasons.
Personnel :Lochan R, Siddiqui AA, Kumar P, Chouhan TPS, Sumbli SN
Project Period :1997-2000
Objectives :To evolve races suitable for different seasons.
Results/Recommendation :
· Most of the hybrids have shown remarkable results and shell ratio% was recorded between 21.04% and 25.31%, pupation rate exceeding 90% was recorded in respect of 26 hybrids. These hybrids have performed well in respect of cocoon yield. The cocoon yield/10,000 larvae were between 18.0 kg and 22.5 kg.
· Keeping all the parameters in mind along with post cocoon uniformity such as uniformity in cocoon shape, size and grains, seven genotypes viz., Dun6, Dun12, Dun17, Dun18, Dun19, Dun21 and Dun22 along with their 5 short listed hybrids namely Dun6 x Dun22, Dun6 x Dun21, Dun12 x Dun19, Dun17 x Dun18 and Dun17 x Dun19 were recommended for entry in race authorization programme. In these 5 hybrids filament length was recorded between 1042 mts to 1145 mts with neatness point above 90%.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evolution of bivoltine silkworm races from three way crosses.
Personnel : Siddiqui AA, Kumar P, Lochan R, Sumbli SN, Chauhan TPS
Project Period :1997-2000
Objectives :To introduce three way crosses.
Results/Recommendation :
· Four genotypes Dun21, Dun22, Dun23 and Dun24 were reared in F11 and F12 generation during spring and autumn season. Dun21 and Dun24 recorded highest cocoon shell ratio percentage of 22.32 and 21.8 respectively during spring season and 21.96% and 21.21% in autumn season.
· Dun17 x Dun11 recorded highest shell ratio of 24.56% followed by Dun17 x Dun20 (23.43%) and Dun17 x Dun9 (22.99%).
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :To evolve summer and monsoon specific bivoltine races.
Personnel : Siddiqui AA, Chouhan TPS, Singh BD, Lochan R, Kumar P, Sumbli SN
Funding Source :CSB, Bangalore
Project Period :1997-2003
Objectives :To evolve bivoltine breeds with better tolerance towards high temperature and high humidity and low quality of mulberry leaf to utilized for commercial rearings in summer and monsoon seasons.
Results/Recommendation :
· Six lines namely ATR (Adversity breeds) viz., ATR6, ATR11, ATR13, ATR16. ATR28 & ATR29 exhibited uniformity in their larval and cocoon shape and improvement in their economic traits and were considered as fixed genotypes. Among these ATR6, ATR16 and ATR28 have evolved as Chinese type (plain, oval cocoons) and three lines viz., ATR11, ATR13 and ATR29 as Japanese line (marked, constricted). Perusal of data revealed that pupation rate in new thermo tolerant breeds recorded between 77.2% (ATR11) and 82.4% (ATR16). The shell weight was recorded between 0.317gms and 0.383 gms with shell ratio between 18.11% (ATR29) and 21.28% (ATR16) in Harsh climatic conditions. Reeling results reveal that filament length in these six line breeds was ranged from 960-1060 mt. With denier between 2.60 and 3.00.
· On the basis of the uniformity in larval markings, cocoon shape and moulting behaviour hybrid ATR6 x ATR29, ATR6 x ATR11 and ATR6 x ATR29 may be recommended for commercial use.
Project Outcome :ATR6, ATR11, ATR13, ATR16, ATR28 & ATR29, J&K, UP, Uttaranchal, Himachal races were evolved for summer and monsoon seasons with better pupation rate.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of silkworm Bombyx mori L - Isolation of lines from polyhybrids.
Personnel : Quadir SM, Mir Nisar, Sheikh GN, Khan MA
Project Period :1998-2002
Objectives :To isolation lines from polyhybrids populations.
Results/Recommendation :The highest fecundity 527 was recorded in SBG22 followed by 512 in SBG5. These lines recorded hatching% of 95.02 to 96.48% cocoon yield 14.83 to 15.73 kg per 10,000 larvae brushed; single cocoon weight 1.49 to 1.67 g; shell weight 0.32 to 0.36 g; shell ratio 21.48 to 22.22% and filament length 826 to 971 m. All the lines have shown homozygosity in cocoon and larval characters. The pupation rate was recorded in the range of 97 to 98%.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Breeding of sex-limited genotypes.
Personnel : Chauhan TPS, Siddiqui AA, Lochan R, Sumbli SN
Project Period :1998-2005
Objectives :To bring down the cost of seed production and ensure proper hybrid preparation.
Results/Recommendation :Five hybrids of genotypes evolved for sexual dimorphisms on larval marking were tested during spring season 2004 to assess their rearing performance and cocoon characters. All the hybrids recorded pupation rate more than 90% and cocoon shell ratio between 20.06 to 22.00%. The data of hybrid SL3 x SL6 has been submitted for provisional race authorization committee and selected for testing under PRAP during 2005.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on evolution of improved local silkworm genotypes feasible for Jammu division.
Personnel : Raina SK, Khan RA, Bali RK, Bindroo BB
Project Period :1998-2000, 1999-2000
Objectives :To evolve local silkworm genotypes suited to subtropical conditions of Jammu region.
Results/Recommendation :The F12 generation of two lines viz., RSJ5 and RSJ6 were raised during the year under report. The line RSJ5 recorded 20.42% and 22.13% of SR in spring 99 and autumn 99 respectively. While line RSJ6 showed the SR of 20.70% and 22.64% during spring and autumn respectively. Average fecundity of the two lines ranged from 475 to 557.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on identification of autumn specific hybrids for commercial utilization.
Personnel : Raina SK, Khan RA, Bali RK, Bindroo BB
Project Period :1998-2000
Objectives :Selection of silkworm hybrids suitable for autumn season.
Results/Recommendation :Based on pooled data of two years and application of multi trait evaluation index on these hybrids, two hybrids namely RSJ3 x RSJ1 and RSJ3 x RSJ4 have been identified for field trials.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on isolation of silkworm lines from exotic material.
Personnel :Quadir SM, Nisar, Khan MA.
Project Period :2000-2003
Results/Recommendation :The four promising lines viz., SBG PAM5 SBG PAM20, SBG PAM21 and SBG PAM22 isolated from exotic material have completed F14 generation. All the promising lines have shown homozygosity in cocoon and larval characters. The highest fecundity (646) was recorded in SBG-5 followed by 549 in SBG PAM22.
Source of Information :Annual Report:2002-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of races under race authorization programme.
Personnel :Haroon Rashid, Tewary P, Khan MA
Project Period :2000-2001
Objectives :Under this programme four bivoltine hybrids were tested at CSR&TI, Pampore during spring and autumn 2000.
Results/Recommendation :
· During spring rearing data reveals that the highest hatching of 95.87% was observed in APS9 x APS8 and lowest 91.61% in KA x NB4D2. The highest single cocoon weight of 2.158 g was recorded in KA x NB4D2 closely followed by APS9 x APS8 with 2.015g. The hybrid CSR2 x CSR5 gave highest shell weight (46.00cg) and shell ratio 23.81%).
· During autumn rearing the highest hatching % of 97.97% was recorded in APS5 x APS4 closely followed by APS9 x APS8 with 97.56%. The highest single cocoon weight and shell weight of 1.641 g and 31.78 cg respectively were recorded in hybrid KA x NB4D2. The highest shell ratio of 20.85% was recorded in CSR2 x CSR5 and lowest shell ratio of 19.36% was recorded in KA x NB4D2.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Development of high yielding and stress tolerant silkworm hybrids-Evaluation of silkworm hybrids.
Personnel : Raina SK, Khan RA, Koul S, Misri SS, Saxena NN, Quadri SM
Project Period :2001-2004
Objectives :To identify a couple of hybrids that can withstand stress condition, where it explores the possibility of taking up of overlapping crops and also making autumn rearing a successful avocation.
Results/Recommendation :On the basis of cumulative E1 calculated from pooled data of two years, it is observed that RSJ14 x RSJ13 is best performing hybrids both for spring and autumn. RSJ15 x NB4D2 is second best hybrid for spring whereas RSJ13 x RSJ15 is second best for autumn season. These three hybrids shall be subjected to preliminary evaluation after preparing seed.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of hybrids for identification of high ranking season specific hybrids for commercial exploitation under temperate climatic conditions.
Personnel :Quadir SM, Mir Nisar
Project Period :2001-2004
Objectives :Identification of seasons specific hybrids for Kashmir.
Results/Recommendation :The hybrids CSR2 x KY1, JP1B x PAM101, J-plain x CSR5 and CSR2 x CSR4 recorded about 21% shell during spring 2004; while SH6 x NB4D2 recorded 17.77% shell. These hybrids recorded cocoon yield at par with CSR2 x CSR4 (16.32 to 16.50 kg/10,000 larvae brushed) and registered an increase of about 5.30% in cocoon yield and about 21% in shell ratio over conventional hybrid SH6 x NB4D2. During autumn CSR2 x KY1 recorded 21.70% shell as compared to 21.73% in CSR2 x CSR4. The conventional hybrid SH6 x NB4D2 recorded 20% shell.
Performance of short-listed hybrids - spring 2004
Hybrid
Fecundity
Hatching
%
Yield/10000 larvae
SCW
(g)
SSW
(g)
SR
%
Filament length
(m)
Denier
By No.
By wt. (kg)
CSR2 x KY1
537
96.44
9547
16.47
1.67
0.35
20.98
895
2.25
NB4D2 x CP1B
604
97.27
9653
16.17
1.67
0.36
21.36
778
2.24
JP1Bx PAM101
553
93.75
9773
15.48
1.58
0.34
21.51
818
2.05
J-plain x CSR5
552
94.72
9707
15.51
1.60
0.34
21.21
882
2.35
SH6 x NB4D2
555
97.95
9680
15.67
1.62
0.29
17.77
699
2.74
CSR2 x CSR4
598
93.34
9693
15.80
1.63
0.35
21.47
980
2.35
Performance of short-listed hybrids – autumn 2004
Hybrid
Fecundity
Hatching %
Yield/10000 larvae
SCW (g)
SSW (g)
SR%
Filament length (m)
Denier
By No.
By wt (kg)
CSR2 x PAM 101
430
98.14
9640
15.07
1.51
0.32
21.16
702
2.02
CSR2 x KY1
555
97.55
9413
13.10
1.49
0.32
21.70
772
2.03
CP1B x JP1B
491
97.73
9560
14.10
1.56
0.34
21.57
673
2.53
PAM 101 x CP1B
445
97.23
9387
14.81
1.42
0.29
20.62
845
2.25
SH6 x NB4D2
484
98.17
9840
14.57
1.40
0.28
20.00
681
2.40
CSR2 x CSR4
443
98.41
9847
13.94
1.55
0.34
21.73
606
2.37
Source of Information :Annual Report: 2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on maintenance and evaluation of silkworm germplasm.
Project Period :2001-2002
Personnel :Sahni NK, Chauhan TPS, Singh BD
Objectives :To maintenance and to evaluate of silkworm germplasm.
Results/Recommendation:Among 44 genotypes, 31 genotypes are plain characteristics of larvae, 2 genotypes are having CSGRC, Hosur Acc.No. These races were reared during spring, the favourable season of Doon valley and autumn as well. Data on important rearing parameters like fecundity, yield, survival rate, cocoon characters etc., with ranges recorded as a part of evaluation programme.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on isolation of high surviving/tolerant breeds of shorter larval duration.
Personnel : Raina SK, Khan RA, Sulochana Koul, Misri SS, Saxena NN
Project Period :2002-2004
Objectives :Evaluation of tolerant breeds and their hybrids for stabilization of autumn crops under Jammu condition.
Results/Recommendation :From twenty breeding populations raised during spring 2002 by involving Chinese golden70, Chinese golden90, PAM105, PAM109, Jam18 and CSR18 as parental stock material. Initially nine lines were isolated. Subsequently only five lines were carried forward for the desired traits. F5 and F6 generations of the lines were reared in spring and autumn, 2004, respectively. The rearing performance of the lines vis-à-vis SH6 and NB4D2 as parents (control) is given.
Rearing performance of lines isolated for shorter larval duration (spring and autumn 2004).
Combination Race
(control)
Hatching %
Yield/10,000 larvae retained
Single cocoon wt. (gm)
Single shell wt. (gm)
SR%
5th age larval duration (D:Hr)
Total larval duration (D:Hr)
By No.
By wt. (Kg)
AW
91.61
9600
14.40
1.550
0.284
18.32
5:00
23:03
CW
89.07
9680
14.40
1.588
0.339
21.34
6:00
24:01
FW
89.15
9200
13.40
1.396
0.227
16.26
4:01
22:04
GW
89.02
8700
15.64
1.764
0.289
16.38
5:09
24:04
HW
84.78
9200
13.92
1.513
0.292
19.29
5:00
23:03
SH6 (C)
96.72
9657
13.85
1.400
0.249
17.28
5:15
26:03
NB4D2 (C)
96.88
9485
14.74
1.517
0.274
18.06
5:13
26:09
AW
87.03
8949
13.22
1.506
0.278
18.46
5:08
21:02
CW
89.10
8833
11.88
1.351
0.248
18.35
5:08
21:02
FW
86.51
8666
11.50
1.300
0.244
18.82
5:08
20:02
GW
90.94
9166
12.61
1.386
0.257
18.55
5:05
20:10
HW
85.15
8983
12.03
1.350
0.249
18.44
5:08
20:02
SH6 (C)
91.59
8924
13.44
1.469
0.274
18.66
5:20
22:02
NB4D2 (C)
84.54
9177
12.64
1.349
0.247
17.99
5:22
22:03
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Production and supply of P1 (parental) seed under seed supply programme.
Personnel :Bakshi RL, Tej Singh, Koul S, Tewary TP
Project Period :2003-2004
Objectives :To supply P1 seed.
Results/Recommendation :A total 13,973 P1 dfls (SH6, NB4D2, CSR2, CSR4, CSR5, RSJ1, RSJ3, RSJ11 and RSJ14) were produced during spring and autumn 2003 and after sorting and selection 9,350 P1 dfls were produced and supplied to SSPC, Udhampur and SDD, DOS, Jammu for rearing during 2004 (spring) out of the remaining 4623 dfls a quantity of 140 dfls were utilized for test hatching and 4483 dfls rejected, because of unseasonal hatching during aestivation at RTRS Batote.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Collaboration studies in evaluation of silkworm germplasm.
Personnel :Sahni NK, Chauhan TPS, Mishra PN, Chakrabarti S
Project Period :2003-2004
Objectives :To evolve silkworm germplasm under collaborative programme.
Results/Recommendation :The races along with ruling hybrid races of this region namely, SH6 and NB4D2 were reared during the year under report during spring and autumn. Data on important rearing characters like hatching %, mountage mortality, cocooning %, pupation rate, male and female single cocoon weight, shell weight, shell ratio (%) etc., of each accession as prescribed in the format supplied by the CSGRC, Hosur were recorded, compiled and presented to CSGRC, Hosur for assessing the promising accessions at all India's level.
Source of Information :Annual Report:2003-04
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on field trial of identified promising hybrids.
Personnel :Nisar, Quadir SM
Project Period :2004-2005
Objectives :To study the identified promising hybrids at field level.
Results/Recommendation :Under field trial programme CS6 x PAM101 developed by CSR&TI, Pampore was reared in the field in three sericulturally important districts of Kashmir viz., Anantnag, Baramulla and Pulwana during spring and summer, 2004 and recorded an average cocoon yield of 57.20 kg/oz and 42.31 kg/oz during spring and summer 2004 respectively. CS6 x PAM102 recorded an increase of 36.06% during spring and 20.40% during summer in cocoon yield over conventional hybrid SH6 x NB4D2.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of promising bivoltine silkworm genetic resources under prevailing conditions (spring & autumn) in North India.
Personnel :Raina SK, Pankaj Tewary
Project Period :2004-2005
Objectives :To evaluate promising bivoltine silkworm genetic resource under prevailing conditions in North India.
Results/Recommendation :The project has been initiated from March 2004. 1st spring rearing, 2nd late spring rearing and 3rd autumn rearing was conducted in 2004 with 8, 11 and 10 accessions respectively in place of 12 accessions as envisaged under the project due to no hatching in some of the accessions.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :On farm trial: Hybrid testing of newly evolved thermo-tolerant ATR hybrids at farmers level.
Personnel : Siddiqui AA, Chakrabarti S
Project Period :2004-2005
Objectives :To study the hybrid testing of newly evolved thermo-tolerant ATR hybrids at farmer level.
Results/Recommendation :It is clear from the trials that the summer period between 1st week of May to 2nd week of June is comparatively more suitable for rearing and additional crop may be introduced during this period at farmers level.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : On Farm trial: Hybrid testing of newly evolved Dun lines.
Personnel : Siddiqui AA, Chakrabarti S
Project Period :2004-2005
Objectives :To test the new hybrids of silkworms.
Results/Recommendation :Field trial of new Dun hybrid evolved at this station was conducted during spring 2004 at REC, Una and REC, Bageswar. 100 dfls of Dun6 x Dun22 were reared at each centre at farmers level. A cocoon yield of 77.45 kg/100 dfls was recorded in Dun hybrid at REC, Una while in control the average cocoon yield was only 49.84 kg. REC, Bageswar also recorded Dun hybrid excelled in yield with 73.80 kg against 42.16 kg/100 dfls in control SH6 x NB4D2.
Source of Information :Annual Report:2004-05
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Rearing Technology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on feasibility trials on multiple utility vinyl shed.
Personnel : Tikoo BL, Sumbli SN, Iyengar MNS
Project Period :1974-1976
Objectives :To study the feasibility of multiple utility of vinyl shed.
Results/Recommendation :The vinyl shed could have a multiple utility by rearing silkworms during summer months and vegetables during the winter season. The shed requires more rigid roofing and an increased gradient than those available in the prototype are necessary to withstand the climatic conditions prevailing in Kashmir.
Source of Information :Annual Report:1975-76
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on late autumn rearing.
Project Period :1980-1981
Objectives :To study the feasibility of autumn rearing.
Results/Recommendation :
· The rearing could not be continued beyond 3rd moult due to non-availability of qualitative mulberry leaf.
· The shortest line period taken upto 3rd moult was 10 days in the case of Yakwei race.
· The lowest missing larvae percentage was 11.9% in race Yakwei and highest was 60.6% in the case of race B39.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of overcrowding on the stability of cocoon crop at different seasons of rearings.
Personnel : Subba Rao G, Paul DC, Parey M
Project Period :1981-1982
Objectives :To evolve a suitable spacing schedule, applicable for commercial crop as well as seed crop for univoltine zone.
Results/Recommendation:
· In summer the yield by weight per 10,000 larvae brushed recorded almost same in different treatments. It was 12.4 kgs; 12.6kgs; 12.1 kgs and 13.03 kgs; respectively in 25%, 50%, 75% and 100% increase of space against 12.0 kgs; in control, while the yield recorded was 11.04 kgs; 11.53 kgs; 1.54 kgs; and 11.03kgs respectively in 25%, 50%, 75% and 100% increase in population.
· The quality of cocoons found to be almost same in all treatments.
· In autumn the quality and quantity of cocoons produced/10,000 larvae brushed recorded almost same among different treatments through same spacing schedule was adopted as in case of spring and summer.
· From the data, it is evident that proper spacing schedule is found to be very much effective when other conditions such as climatic factor and quality of food are good.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of rearing by mulberry leaves of different period of storage.
Personnel : Paul DC, Parey M
Project Period :1982-1983
Objectives :To study the effect of storage of mulberry in silkworm rearing.
Results/Recommendation: The mulberry leaves were preserved in earthern pots wrapped by moist gunny cloth. The loss of moisture percentage due to different period of preservation has been worked out and highest loss of moisture due to preservation was about 3% in case of 108 and 120 hours duration. Different temperature was recorded inside the earthern pots containing leaves of different period of storage and also in the room.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the percentage of missing larvae due to bed cleaning at different stages of rearing.
Personnel : Paul DC, Parey M
Project Period :1982-1983
Objectives :To study the effect of bed cleaning on larval loss in different stages of rearing.
Results/Recommendation :Based on the quality and quantity of cocoons produced, there was no adverse effect on the rearing result, rather it was found to be better in case of omission of bed cleaning at earlier stages when compared with the result of control in Kashmir climatic conditions. However, the total omission of bed cleaning has some definite adverse effect on rearing result.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on comparative performance of silkworm rearing on different mulberry varieties in different seasons.
Personnel :Alam MO, Sharma AK, Ahsan MM
Project Period :1985-1986
Objectives :To assess the suitability of a few promising mulberry varieties for silkworm rearing during different crop seasons.
Results/Recommendation :The spring rearing revealed that Ichinose variety recorded better performance. The highest filament length was observed in Rokokuyaso variety (1277 mts). In summer Kokuso-27 yielded better results, showing highest ERR (94%), yield/10,000 larvae brushed (17.85kg), shell weight (0.45g) shell ratio (23.85%) and filament length (1365 mts). In autumn rearing Rokokuyaso variety recorded better results registering 36.5 gms weight of 10 mature larvae 17.45 kg yield/10,000 larvae brushed, 1.51 gms single cocoon weight, 0.31gms shell weight, 20.35% as shell ratio and filament length 984 mts.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies to bring out schedule for silkworm rearing crop-wise.
Personnel :Pande VK, Bisaria A
Project Period :1985-1986
Objectives :To establish schedules for silkworm rearing.
Results/Recommendation :The bivoltine hybrids reared during spring gave the yield ranging between 40-56 kg/100 dfls. Improved multivoltine and multi x bi hybrids reared during summer and autumn brushed recorded encouraging results.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Stabilization of 2nd and 3rd commercial rearings.
Project Period :1985-1986
Objectives :To establish stability in the commercial rearings.
Results/Recommendation :
· 2nd commercial rearing: Rearing of multi x bi seed in the field has steadily attained stability. The average cocoon harvest was 32.35 kg/100 dfls.
· 3rd commercial rearing: The centre distributed a total of 450.30 ounces of hybrid silkworm seed among 503 rearers during the period under report. The total harvest from all the three rearings was 14,740,350 kg and the total remuneration earned by rearers amounted to Rs.3,70,125.90
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on working schedules for silkworm rearing crop wise and breed wise.
Project Period :1985-1986
Objectives :To work out the exact schedule for rearing of different breeds of silkworms in Punjab.
Results/Recommendation :For maintenance of the multivoltine stocks a few additional rearings were taken up in the laboratory. In all the centre produce a quantity of 19687 dfls under various programmes during the year under report.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :P1 Departmental rearing.
Personnel :Sh.Sushil Kumar Raina, Chandrakanth Purohit, Sumbli SN
Project Period :1990-91
Objectives :To assess the performance of P1 seed in departmental laboratory during spring, autumn and late autumn.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Introduction of additional crop during summer in field.
Project Period :1990-1991
Objectives :To conduct rearing of multi x bi seed during summer in order to make silkworm rearing remunerative at farmers level.
Results/Recommendation :Under this programme a total of 1,000 dfls of multi x bi seed was distributed in field after chawki. An average yield of 23.100 kg/100 dfls was recorded. Amongst three different combinations the highest yield per 100 dfls was recorded in G x J112 being 27.333 kg, followed by Nistari x Chaung Naung, Nistari x J112 being 23.578 and 16.444 kg respectively.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Adoption of villages and distribution of chawki worms in field.
Project Period :1990-1991
Objectives :To distribute bivoltine hybrids among rearers and imparting technical know how regarding improved technique of silkworm rearing.
Results/Recommendation :In spring the highest yield was recorded in case of J122 x Chaung Naung being 33.000 kg per oz and during autumn the highest yield of 21.346 kg/oz was noticed in SH6 x NB4D2 combination.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on field rearing during different seasons of 1993-94 - Spring commercial rearing.
Project Period :1993-1994
Objectives :To study the field performance of commercial rearing during spring.
Results/Recommendation :As a result an average cocoon production of 30 kgs/100 dfls was achieved with total green cocoon harvest of 480 kgs. For the last two years, the average cocoon yield/ozs of newly introduced crops during summer and autumn seasons has been found much encouraging which ultimately may prompt us to regularize the side crops as commercial crops in this region. By doing this so we can keep the rearers themselves engaged in silkworm rearing throughout the year and upgrade their economic status.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on commercial spring rearing.
Project Period :1993-1994
Results/Recommendation :The chawki reared larvae of 2.5 oz seed procured from Taiwan was distributed among 3 rearers in Desa Singh village. The number of rearers was also increased from 106 to 127 during this season. The extension staff is keeping constant vigil on the rearing of silkworm at rearers level and solving the rearers problems with respect to the rearing of silkworms.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of feed quantum during 5th age on the productivity of cocoons.
Personnel :Haroon Rashid, Khan MA
Project Period :1995-1996
Objectives :To study the effect of feed quantum on cocoon production.
Results/Recommendation :During spring worms can be mounted after consuming 30 feeds (7.5 days) in summer season after consuming 26 feeds (6.5 days) and in autumn after 28 feeds (7 days) by following a 4 feed system of feeding/day.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on effect of various mounting materials on cocoon characters of Bombyx mori L.
Project Period :1996-1998
Objectives :To find out a suitable mounting material having a good effect on cocoon characters besides being economical, easily available to farmers/rearers and suitable to the temperate climatic conditions of the valley.
Results/Recommendation :Two years pooled data depicted that the grass cocoon age followed by plastic mountage and willow mountage proved to be the best mountage.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Screening of improved mulberry genotypes suitable for chawki rearing.
Personnel :Haroon Rashid, Malik MA, Khan MA, Bhat GH
Project Period :1998-2000
Objectives :To determine the effect of improved mulberry genotypes on economic characters of silkworm Bombyx mori.
Results/Recommendation :Rokokuyaso, Kokuso-27, KNG, Ichinose and Chinese white genotypes were tested with genotype Goshoerami as control. Shell weight, shell ratio and number of good cocoons were found to be significant at 1% level in both spring and autumn crops. In economic characters KNG was found most suitable genotype for chawki rearing closely followed by Ichinose during spring and autumn seasons.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on shoot preservation methods for late age rearing.
Project Period :1998-1999
Objectives :To find out the suitable method of shoot preservation to improve cocoon quality.
Results/Recommendation :Leaf chamber covered with gunny cloth and sprayed with water periodically can be used for mulberry leaf/shoot preservation because it helps to prevent the withering of mulberry leaves/shoot stored in it and keeping the freshness of stored leaf for longer duration thus showing maximum improvement in cocoon yield, survival rate and other cocoon characters.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on effect of different modes of transportation of chawki worms on rearing performance.
Personnel : Chauhan TPS, Lochan R, Siddiqui AA, Sumbli SN
Project Period :1998-1999
Objectives :To study the suitability of Bed roll system of chawki transportation in Doon valley conditions using SH6 x NB4D2 silkworm hybrid.
Results/Recommendation :Perusal of data revealed that there is no significant difference in ERR and cocoon characters in any treatments and transportation of worms in rolling bed condition did not affect the rearing performance. Hence, worms in rolled bed conditions, either before resuming or after resuming can be transported by which 100 dfls can be accommodated in single tray (3'x2'). However, it will be more space economical if rolled beds are place in specially racks/trays.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on cocoon production technology package.
Personnel : Quadir SM, Rajinder Kour, Mir MR, Zeya SB, Mir Nisar, Mohd.Aslam
Project Period :1999-2000
Results/Recommendation :By following package,
· The larval period has been lessened by about 2.5 days.
· 5.24% gain in mounting % has been shown in treatment package against the control.
· In cocoon yield there is 14.60% gain over control.
· There is 2.87% gain in pupation rate in treatment rearers.
· In cocoon weight, shell weight and shell ratio, there is 6.88, 10.71 and 3.68% gain respectively over control.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Assessment of impact of new sericultural technologies on productivity and quality of cocoons at farmers level in Doon valley.
Personnel : Verma VK, Ramakant, Chauhan TPS, Singh BD, Chakrabarti S
Funding Source :CSB, Bangalore
Project Period :2000-2005
Objectives :
· To study the cumulative impact of different sericultural technologies on productivity and quality of cocoons and profitably in sericulture in Doon valley.
· To generate information regarding the role of recommended improved technologies to improve the cocoon productivity, which will be helpful to draw an action plan for popularization and adoption at farmers level.
Results/Recommendation:
· Adopted farmers have got 40% more cocoon yield as compared to non-adopted farmers. Cost benefit ratio has been calculated which is 5.26 and 3.55 during spring and autumn respectively at adopted farmers.
· Defective cocoon percentage has decreased considerably during spring and autumn crop in case of adopted farmers.
· Adopted farmers harvested 32.43 kg, 28.36 kg and 35.15 kg of cocoons/100 dfls whereas non-adopted farmers harvested 24.15 kg, 20.42 kg and 24.38 kg of cocoons/100 dfls at Baluwala, Kedarwala and Dhoolkot respectively. Thus a gain of 34.29%, 38.88% and 44.17% in cocoon yield was recorded over control (non-adopted farmers) at Baluwala, Kedarwala and Dhoolkot respectively.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on silkworm rearing technology practices-Effect of feeding late age silkworm with reduced quantum of mulberry leaves on cocoon production.
Personnel : Khan RA, Raina SK, Koul S, Qadri SMH
Project Period :2001-2002
Objectives :To ascertain the minimum optimum of mulberry leaves required to suffice late age silkworm rearing, conducted by the farmers who particularly experience leaf scarcity during the late age rearing.
Results/Recommendation :
· First trial of experiment as stipulated was conducted in two sets during autumn 2001. Final stage silkworms under set-1 were fed with individual mulberry leaves by giving 75%, 65% and 50% of the optimum quantum of mulberry leaves (1240 kg/40,000 larvae) with 100% of optimum quantum of feed as control. Similarly, the final stage silkworms under set-2 were fed with 75%, 65% and 50% of optimum quantum of mulberry shoots (2065 kg/40,000 larvae with leaf shoot ratio of 60:40) and with 100% of optimum quantum of feed as control.
· Treatment involving feeding with 70% of the optimum feed in both the sets have shown the results almost at par with the control i.e., 100% of optimum feed.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Transfer/testing of evolved technologies - Field evaluation of different mountages.
Personnel :Haroon Rashid, Khan MA
Project Period :2001-2002
Objectives :To find out a suitable mountage which would help in improving the quality and quantity of cocoons.
Results/Recommendation :Among four different types of mountages viz., paddy grass mountage, mulberry twig mountage, bamboo strip mountage, the grass mountage gave better results by recording total cocooning (98.38%) lowest double cocoon (3.83%) and highest shell ratio (20.67%). Lowest performance was shown by bamboo strip mountage by recording cocoon % (94.62%) and highest double cocoon (5.97%)
Source of Information :Annual Report:2001-02
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Silkworm Physiology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on effect of Juvenile hormone "Manina" on the economic characters of silkworm by topical treatment.
Project Period :1985-1986
Objectives :To study the effect of Juvenile hormone ‘Manta’ on the rearing performance.
Results/Recommendation: Results of 3 observations revealed that by the application of hormone, the larval duration got prolonged by one day. The hybrid SS x KY1 comparatively yielded better cocoons than SS race and 60 hours treatment was more significant than others.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of general tolerance through inorganic tissue salts in silk worm Bombyx mori L.
Personnel :Tayal MK, Siddiqui AA, Chauhan, Chouhan TPS, Saraswat SB, Singh BD.
Project Period :2000-2005
Objectives :To ascertain the role of inorganic tissue salts to improve the disease tolerance in silkworm.
Results/Recommendation :The percentage silkworm disease incidence in TITS treated groups were significantly low as compared to control which indicate that TITS are having a positive role to improves the disease tolerance in silkworm. Besides lowering the disease incidence % the TITS treated groups showed the improvement in general healthiness in cocoon yield, population rate and cocoon characters.
It is observed that the supplementation of triturated inorganic tissue salts in I and II stages of larval period were equally as good as in 1st to 5th stages rather better in most of the crops. The effectiveness of these salts against the BmNPV and bacteria inoculums were clearly evident from the results to reduce the disease incidences and improve the pupation rate significantly in treated batches than controls. However, there were no marked changes in cocoon characters.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on effect of phytoecdysteroid on larval maturation and economic characters of silkworm Bombyx mori L.
Project Period :2000-2001
Objectives :To determine the effect of phytoecdysteroid on larval maturation and economic parameters of silkworm.
Results/Recommendation :Maturation percentage was consolidated and compared with that observed in untreated control which showed that the hormone induced the completion of maturation within 12 hrs whereas the control took 18 hrs.
Source of Information :Annual Report:2000-01
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Seed Technology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Supply of P2 and P1 dfls.
Project Period :1967-1972
Objectives :To supply P2 and P1 dfls to the user industry.
Results/Recommendation :
· The supply of high quality bivoltine seed cocoons to Mysore state has given quite encouraging results. It entails the supply of 1,50,000 seed cocoons annually to Mysore State.
· The scheme will ultimately result in an increased production of quality silk in Mysore state and the rearers will get an additional income to the tune of Rs.1.2 crore. It is hoped that the scheme will be sanctioned by Govt. of India and this will prove another milestone in the activities of the station and allow it to play its assigned role more vigorously in the development of sericulture industry in India.
Source of Information :Annual Report:1971-72
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the effect of multiple mating on the progeny of silkworm.
Personnel : Tikoo BL, Dhar KL, Saproo ML
Project Period :1974-1975
Objectives :To study the effect of multiple mating on the progeny of silkworm.
Results/Recommendation :The results obtained do not support the view that inbreeding followed by the cross breeding does not effect the production of hybrid progeny significantly.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production and supply of hybrid silkworm seed.
Personnel : Tikoo BL, Dhar NA, Saproo ML
Project Period :1976-1981
Objectives :To produce commercial silkworm hybrid seed.
Results/Recommendation :The commercial silkworm seed produced by the extension/grainage complex is for supply to various states is a priced commodity as per the policy decisions of the CSB, Bangalore; the price fixed is Rs.50/- per ounce of seed.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Sexing at pupal stage vis-a-vis use of sex-limited races for grainage operation.
Project Period :1980-1981
Objectives :To separate sexes based on sex limited markings.
Results/Recommendation :Separation of sex in the normal larval population and at cocoon stage by pupal sexing, the rate of efficiency or out turn per hour is more or less same, while as at larval stage sexing in sex-limited races has the possibility of doubling the time period by 50% for the same number of grainage work.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :To assess the rate of loss of moisture in green cocoons from the date of harvest till the emergence and to study the emergence pattern of moths.
Project Period :1980-1981
Objectives :To find out the loss in weight in the cocoon undergo during the period from the day of weightment, 7th day from spring, till emergence day.
Results/Recommendation :The bulk of the emergence 88.60% was completed during the 2nd and 3rd day. About 10-12% of emergence took place on 1st and 4th days with little on the 5th day, being about 1.2%.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on cold acid treatment schedule required by different parental races for optimum hatching.
Project Period :1980-1981
Objectives :To standardize cold and treatment for different parental races for optimum hatching.
Results/Recommendation :
· The different parental races showed good hatching when dipped in acid from 45 to 85 minutes.
· In case of C108 and Chang Nang, 45 minutes was maximum time required to give optimum hatching whereas in case of races C110, J122 and Haulak 55 minutes was the minimum time period needed. For races Yakwei, B39 and B40, 60 minutes duration was found to be the minimum for optimum results.
· In the race J112 for some reason the development was irregular in all the treatments.
· Dip in the acid for more than 85 minutes at the room temperature had adverse effect in the embryo as there appeared more number of dead eggs in the layings thus treated in almost all the races.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Departmental rearing and production of commercial seed.
Project Period :1980-1981
Objectives :To prepare commercial seed for Departmental use.
Results/Recommendation :The extension centre wholly assisted the grainage complex in processing and breeding of 709 kgs of seed cocoons produced from the rearing zone of Tangmargh area. Thus the extension/grainage complex produced a total quantity of 1,34,326 dfls during the year 1980.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production of P2 seed.
Personnel : Mahapatra HC, Misri SS, Ganjoo RN.
Project Period :1982-1983
Objectives :To produce P2 seed cocoons.
Results/Recommendation :During summer rearing the yield per 10,000 larvae brushed ranged from 12.62 kgs in Yakwei to 11.02 kgs in Chang Naung. The shell ratio ranged from 20.7% in Haulak to 20.6% in Yakwei. In Autumn the yield per 10,000 larvae brushed was 10.70 kgs in Yakwei and 10.45 kgs in Haulak. The shell ratio ranged from 18.4% in Chang Naung to 17.6% in J112.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Production of P1 seed.
Personnel : Mahapatra HC, Misri SS, Ganjoo RN.
Project Period :1982-1983
Objectives :To supply P1 seed.
Results/Recommendation :
· In spring best hatching was observed in Chang Naung i.e., 92.05% while in summer it was best in Yakwei being 95.79% and in autumn J112 showed a hatching percentage of 94.08%. The harvest/10,000 larvae was higher in spring in race J122 being 17.96 kgs by weight and 9529 by number.
· In summer it was highest in same race being 11.61 kgs by weight and 8356 cocoons by number. While in autumn J112 recorded 8.07 kgs by weight and 7011 cocoons by number. Race Chang Naung showed highest shell ratio in spring being 17.50% followed by Yakwei in summer being 14.80% and in autumn it was 18.40% in J112.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Seed Supply.
Personnel : Sahai V, Pandey VK, Negi BBS
Project Period :1982-1983
Objectives :To supply eggs to different organizations.
Results/Recommendation :A total of 3,790 dfls of evolved races/hybrid combination were supplied to field rearers through UP State Sericulture Department and NSSP centre, Dehradun, under the extension programme.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Production and supply of P2 and P1 seed.
Personnel : Maqbool Ahsan M, Misri SS
Project Period :1983-1984
Objectives :
Results/Recommendation :The supply of 20,966 includes 14,950 dfls from the production of 1982-83 and the rest 6,016 dfls from 1983-84 production. Nearly 12,437 dfls have been kept for utilization and supply during 1984-85.
Source of Information :Annual Report: 1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of electric stimulation on silkworm Bombyx mori moths for higher fecundity.
Project Period :1988-1989
Objectives :To find out the impact of external stimulation on fecundity.
Results/Recommendation :Three electrical shocks (5-10 volts) were applied to 10 moths in each treatment for specific time duration. The data obtained reveals no negative effect on the egg layings, as the numbers of unlaid eggs were very high in all the treatments in comparison to the control.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Project Title :Studies on seed refrigeration and preservation with particular reference to Kashmir.
Personnel :
Project Period :1989-1990
Objectives :To find out the optimum period of refrigeration of silkworm seed.
Results/Recommendation :In case of refrigeration prior to hydrochlorization it was observed that the seed refrigerated within 12 hours after oviposition showed hatching after 75 days of refrigeration. In case of seed refrigerated after hydrochlorization, a hatching of 90% and 40% was observed after 30 days in case of lots acid treated and refrigerated within 24 hours and 48 hours of deposition respectively.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Maintenance of bivoltine breeders stock and evaluation of bivoltine silkworm seed-Studies on the rearing performance of silkworm seed prepared during different seasons.
Personnel : Quadir SM, Sumbli SN
Project Period :1990-1991
Objectives :To maintain six approved silkworm races for onward supply of P2 and P1 seeds to State Sericulture Department.
Results/Recommendation :A total quantity of 10,670 dfls of P2 seed was supplied to various sericulture stations by the seed Technology Division. The figure comprises of 7,800 dfls of hibernated and 2,870 dfls of acid treated seed.
Source of Information :Annual Report:1990-91
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Silkworm Pathology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the control of white muscardine disease of silkworm.
Personnel : Iyengar MNS, Dhar KL, Tikoo BL
Project Period :1975-1978
Objectives :To find out alternative chemicals for the control of muscardine which is prevalent in Jammu and Kashmir state and accounts for about 25-30% of the mortality in the field.
Results/Recommendation :Dithane M45 performed better on the control of muscardine.
Source of Information :Annual Report:1977-78
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of silkworm bed disinfectants.
Personnel : Zeya SB, Khan MA, Tewary P
Project Period :1999-2000
Objectives :To evaluate 6 silkworm bed disinfectants received from CSB.
Results/Recommendation :It is concluded that all six bed disinfectants including control (RKO) have shown good results in both the seasons as there is no significant difference in most of the characters amongst control. Since in Kashmir valley two rearings are conducted and so the pathogen load is less.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Field evaluation of different bed disinfectants for the prevention of disease in silkworm rearing under temperate climatic conditions of Kashmir.
Personnel :Haroon Rashid, Khan MA
Project Period :2000-2003
Objectives :To test the efficacy of different bed disinfectants on rearing performance of silkworm Bombyx mori L.
Results/Recommendation :Data recorded showed that Vijetha, Resham Jyothi, RKO, Labex and slaked lime increased the cocoon yield by 20.20 kg, 11.20 kg, 8.20 kg, 8.00 kg, 3.20 kg/100 dfls respectively over the control.
Source of Information :Annual Report:2000-03
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Efficacy of different bed disinfectants on the rearing performance of silkworm Bombyx mori L. in temperate climatic condition
Personnel : Zeya SB, Khan MA, Ahsan MM
Project Period :2000-2001
Objectives :To determine the efficacy of various bed disinfectants developed by various research organizations and recommended for use for silkworm rearing.
Results/Recommendation :Analysis of data reveals that during summer (2000), wt. of 10 mature larvae (g) and single cocoon weight (g) were significant at 1% and 5% respectively. During autumn, (2000), wt. of 10 mature larvae (gms) and ERR by wt (kg) are significant at 1% and 5% respectively. The worms at farmers level die mostly due to rearing defects, overcrowding of worms, underfeeding and hygienic conditions of rearing etc., which leads to poor cocoon crop. However, the on-farm trials of the bed disinfectant with the farmers on a large scale are proposed during (2001), commercial rearing.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Identification of alternate host insects as source of pathogen of silkworm Bombyx mori L. Cross-infectivity of different pathogens of mulberry silk mulberry garden, rearing houses and surrounding agricultural crops etc.
Personnel : Zeya SB, Munshi NA, Khan MA
Project Period :2001-2002
Objectives :
· To identify alternate insect hosts of pathogens responsible for different diseases of silkworm Bombyx mori L.
· To isolate and identify pathogens from insect complex which adversely affect the silkworm Bombyx mori L.
Results/Recommendation :Present findings revealed that Glyphodes pyloalis, Altica himensis, Pieris brasicae and Lymantria obfuscata Walk were found susceptible to the Beauveria bassiana which proves that they are alternate insect hosts of pathogens of silkworm namely Beauveria bassiana.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Cross infectivity of pathogens isolated from insect complex to silkworm Bombyx mori L.
Personnel : Zeya SB, Munshi NA, Khan MA
Project Period :2001-2002
Objectives :To isolate and identify pathogens from insect complex which adversely affect the silkworm Bombyx mori L.
Results/Recommendation :
· From the test it was observed that the new pathogen of Beauveria isolated from the Altica himensis adversely affect the silkworm Bombyx mori L. in which sporulation observed like that of white muscardine but the chalky appearance of the silkworm larvae is highly fragile.
· Further the mortality occurred within 65-75 hrs in the remaining treatment inoculated with fungus after re-isolated from alternate hosts where as in control it took 80 hrs which indicate that the passaging has increased the vigour of the pathogen. It is therefore evident that management of these insects is necessary not that they serve as alternate host but also make the pathogen more vigorous.
Source of Information :Annual Report:2001-02
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Entomology
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of different insecticides on Glyphodes species viz-a-viz, their toxicity on silkworm.
Project Period :1989-1990
Objectives :To combat the pest using different insecticides and besides study the effect of feeding leaves to the silkworm larvae after definite time intervals, so as to find out the safe period for feeding leaves to silkworms.
Results/Recommendation :It was found that all the insecticides proved to be highly toxic to silkworm larvae when treated leaves were fed to larvae after three days of spray, as not a single larvae survived up to mounting. However, percentage of survivability of silkworm larvae at mounting was 46.5, 51.5 and 61.5% respectively when plants were sprayed at eight days before brushing date.
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Chemical control of ‘Mimistra cynura’ a serious pest of mulberry in Jammu province.
Project Period :1989-1994
Objectives :To find out the control measures of Mimistra cynura.
Results/Recommendation :Cypermethrin (Bilcip) is the most effective insecticide resulting in 88% mortality even on tenth day of treatment when tested at 0.20% concentration. This insecticide at all the three concentrations tested was found significantly superior over control.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Survey and control of Dermestid beetle in Jammu region.
Project Period :1990-1995
Objectives :To study and identify the Dermestid beetle, estimate the extent of damage with mode of its infestation and find out effective control measures to minimize the loss of cocoons for reeling.
Results/Recommendation :Peak infestation is in August which gradually decreases by the end of September. For the chemical control of the beetle insecticides namely Aluminium Phosphide, Malathion and DDVP were tried. DDVP was found to be most effective against Dermestes spp.
This beetle has been observed to damage stored cocoons only during monsoons. Therefore it was noted that infestation of the old cocoons started in the month of August being 3.40% with an increase upto 6.8% when observed in the month of September. However, in fresh cocoons the infestation of this beetles started in the month of September first week with 2.2% cocoons affected and reaching upto as high as 7.8% by the end of the month.
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on prevalence, severity, distribution and control of mulberry pests and diseases in Jammu and Kashmir State.
Personnel : Anil Dhar, Bindroo BB, Bali RK
Funding Source :CSB, Bangalore
Project Period :1992-1996
Objectives :To know the prevalence of different mulberry pests and diseases with their severity and distribution besides working out the management strategies of most harmful ones.
Results/Recommendation :Of different pests and diseases of mulberry observed in Jammu and Kashmir it has been found that tukra, Mimastra cynura and powdery mildew are of wide spread occurrence in Jammu province. Bavistin at 1000 ppm conc., in a double spray schedule, is most effective in managing powdery mildew diseases.
Bavistin at 1000 ppm conc. In double spray, schedule and cypermethrin are recommended for control of mulberry pests and diseases.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Pests of mulberry and their management - Survey of mulberry plantation to work out insect pest complex of mulberry-Identification of major insect pests of mulberry.
Personnel : Khan MA, Zeya SB, Malik MA, Trag AR
Project Period :1995-1997
Objectives :To identify the major insect pests of mulberry.
Results/Recommendation :Survey conducted during 1995 and 1996 revealed that the pest Amsacta lactinea (Cramer), Porthesia scintillans (Wlk), Hemorophila atrilineata (Butler) were the first record on mulberry from the J&K state of the country.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Study on the bionomics of Glyphodes pyloalis Wlk and Euproctis irrorata Moore.
Project Period :1995-1997
Objectives :To study the bionomics of insect pests of mulberry.
Results/Recommendation :The adult of Euproctis irrorata is a moderate sized moth mostly nocturnal. The larvae eat out the mulberry and make holes in it. The mature larvae pupate in hairy cocoons on the leaves or branches and on the sides of the glass jars in the laboratory. Detailed studies on the bionomics of Euproctis irrorata could not be possible because its infestation further has not been recorded from the farm of this Institute premises.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Seasonal abundance and phenology of Glyphodes pyloalis its extent and nature of damage.
Project Period :1995-1996
Objectives :To study the seasonal abundance, phenology and extent of damage caused by this pest.
Results/Recommendation :Minimum damage percent (2.23%) was recorded in summer while as maximum damage percent (7.26%) was found to be in autumn on 15th October 1996. Chinese white showed higher percent of damage (9.24%), it was found that the genotypes Chinese white is highly susceptible to Glyphodes pyloalis Wlk and the peak season of infestation occurs in September-October when the maximum population build up takes place.
Source of Information :Annual Report:1995-96
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Study on the parasitoid and predatory complex of Glyphodes pyloalis Wlk - Identification of parasitoids and predators of Glyphodes pyloalis.
Project Period :1995-1997
Objectives :To work out the natural enemy complex of Glyphodes pyloalis an important pest of mulberry in J & K state.
Results/Recommendation :A number of predators and parasitoids were recorded which regressed from the larva and pupal stage of the pest. A. obliqua Wilkn was found the most predominant endo-parasitoid of Glyphodes pyloalis in all the district of the valley surveyed. The parasitoid/predators were identified from Division of Entomology, IARI, New Delhi and CAB identification services, London.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on effect of feeding pest damaged leaves on the economic characteristics of Bombyx mori L - Effect of Glyphodes pyloalis Wlk infested mulberry leaves on the economic characteristics of Bombyx mori L.
Personnel : Khan MA, Zeya SB, Malik MA
Project Period :1997-1999
Objectives :To study the effect of feeding Glyphodes pyloalis infested damaged leaves on the economic characteristics such as cocoon weight, shell weight and shell ratio of bivoltine silk worm Bombyx mori L.
Results/Recommendation :It was concluded that the economic characteristics of Bombyx mori L. was affected when Glyphodes pyloalis infested/damaged leaves were fed to them in both the rearing seasons i.e., summer and autumn 1998.
Source of Information :Annual Report:1998-99
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on pest status of mulberry in different zones of Uttar Pradesh.
Personnel : Chauhan TPS, Lochan R, Siddiqui AA, Kumar P, Sumbli SN
Project Period :1998-2000
Objectives :To conduct survey on the pests of mulberry.
Results/Recommendation :Pest population on mulberry increased in the first week of March and reached to the economic threshold level by June. Pest population decreased with the pruning of mulberry bushes during middle of July and gradually increased with the sprouting of mulberry leaf and reached to the peak during Sep. to Nov. The pest population starts depleting in the month of December probably due to the leaf serosis and leaf fall in winter. Among the three major insect pests identified on mulberry i.e., Spilosoma obliqua, Glyphodes pyloalis, Mimastra cyanura and Spilosoma obliqua was commonly found in hill, plain and tarai areas.
Source of Information :Annual Report:1999-2000
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on seasonal incidence of mulberry pests.
Personnel :Ramakant, Rajat Mohan, Juyal AC, Chakrabarti S
Project Period :2003-2004
Objectives :The seasonal incidence of mulberry pests was studied in Doon valley, Uttaranchal, during 2003.
Results/Recommendation :The results of the field survey on the seasonal incidence of different pests showed that the infestation was minimum during winter season and maximum during August and September. The peak incidence of Diaphania sp. was noticed in September followed by August (13.3%). The second peak incidence was noticed in September followed by October 2003. The incidence of Bihar hairy caterpillar was recorded maximum in 2003 as compared to 2001-02.
The peak incidence of Tukra was noticed in June (Pi 25.8%) followed by May (Pi 11.9%). The infestation of Pseudodendrothrips mori (Niwa) was found on the newly sprouted leaves during the month of February and July. Termites infestation was also recorded throughout the year. The infestation of Spilosoma obliqua was reported during the months of March and April.
Source of Information :Annual Report:2004-05
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title : Studies on prevalence and severity of mulberry pests and diseases.
Personnel : Khan MA, Irfan Illahi, Anil Dhar
Project Period :2003-2004
Objectives :To study the prevalence and severity of mulberry pests and diseases.
Results/Recommendation :Percent pest population (PPP): Gyyphodes pyloalis Wlk, collected from the infested leaves in different mulberry varieties showed that the lowest PPP was observed in Kairyoroso (18.35%), followed by Rokokuyoso (18.60%) and Kokuso-27 (20.05%). Highest PPP was recorded in Goshoerami (23.87%) followed by Chinese white (20.88%).
Source of Information :Annual Report:2003-04
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Silk Reeling
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the reeling quality of cocoons.
Project Period :1979-1980
Objectives :To study the reeling quality of cocoons.
Results/Recommendation :Studies on reeling quality of cocoons both in respect of single cocoon reeling characters and studies on large scale reeling on the cocoons of these 3 North Eastern states J & K, HP, UP has been planned to take up in the spring season of 1980.
Source of Information :Annual Report:1979-80
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on the spun silk yarn used in the carpet industry of Kashmir.
Project Period :1979-1980
Objectives :To study the quality of spun silk yarn of different origins in supply to the carpet industry.
Results/Recommendation :Three samples of spun silk yarn were tested for their tenacity and elongation percentage. The denier of 3 spun silk yarn sample found to be 237, 282 and 305 deniers. The average tenacity of these 3 samples found to vary between 2.76 and 3.10 grams/denier.
Source of Information :Annual Report:1979-80
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Extension
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Survey of sericultural area.
Personnel : Tikoo BL, Iyengar MNS, Dhar KL
Project Period :1974-1975
Objectives :To study the conditions of rearing and to find out the causes of crop failures in the field.
Results/Recommendation :This study has identified the areas which need immediate attention to make our extension programme effective. The major causes of crop failure were identified as below;
· defective incubation of loose eggs.
· insufficient larval spacing.
· ventilation during 4th and 5th stages.
· heavy attack of muscardine. Flacherie and grasserie.
· leaf shortage and improper preservation.
Source of Information :Annual Report:1974-75
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Popularization of improved methods of rearing in the various sericultural states/popularization of package of practice for mulberry.
Personnel : Dhar NA, Bakshi RL, Bhat AH, Saproo ML
Project Period :1976-1981
Results/Recommendation:
· Total number of rearers benefited in Jammu is 250. Average yield per ounce seed in Jammu is 40.4 kg distribution after chawki rearing. Total seed supplied to Jammu was 300 ounces.
· The average yield for 147 ounces of silkworm seed that was under the supervision of extension centre of RSRS, Pampore, comes out to be 24.19 kgs/ounce in Kashmir.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Popularization of improved techniques of silkworm rearing in Jammu and Kashmir divisions.
Project Period :1980-1981
Objectives :To popularize improved techniques of silkworm rearing in Jammu and Kashmir division.
Results/Recommendation :Total number of rearers benefited in Jammu is 250. Average yield/ozs seed in Jammu is 40.4 kg distribution after chawki rearing is 200 ozs distribution after incubation of 2nd day of brushing is 100 ounces.
Source of Information :Annual Report:1980-81
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Raising of mulberry dwarf gardens by rearers in private holdings.
Personnel : Bakshi RL
Project Period :1983-1984
Objectives :To increase and improve the existing mulberry wealth in the area both qualitatively and quantitatively.
Results/Recommendation :1550 plants of early sprouting variety, Punjab local were obtained from RSRS, extension centre Sujanpur (Pb). Besides distributing the plants in small number to over 100 rearers, four more small land holdings of rearers were converted into mulberry dwarf gardens.
Source of Information :Annual Report: 1983-84
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Adoption of villages and silkworm rearing at farmers level.
Project Period :1985-1994
Objectives :To establish CRCs in selected field areas and distribute chawki worms among farmers.
Results/Recommendation :The centre distributed a total of 66 ounces of F1 bivoltine hybrids among 127 farmers/rearers in 24 villages. The technical staff of REC closely supervised rearing for on spot demonstration regarding rearing technique at farmers level. The average yield of 10.119 kg/oz 21.425 kg/ozs and 22.43 kg/oz was recorded in spring, summer, and autumn seasons respectively.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Field survey for comparative crop economics and disease of silkworm and mulberry.
Project Period :1985-1986
Results/Recommendation : The major pests afflicating mulberry plants are stem borers and termites. Whereas the former has been controlled to a large extent by injecting 0.2% Malatox into the tunnel, termites could also be eradicated by dusting DDT powder mixed with ash in the ratio of 1:4 on the afflicated parts as per the studies undertaken at the centre's farm.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Adoption of villages-demonstration of chawki rearing and its impact in field.
Project Period :1985-1986
Results/Recommendation :Result of which rearers were able to harvest better crop and earned better returns. The highest yield of 56 kg/100 dfls was recorded by one of the rearer. The average yield/100 dfls of 51.78 kg was recorded in combination (A) followed by 45.91 kg in SH6 x JD6.
Source of Information :Annual Report:1985-86
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Introduction of package of practices for silkworm rearing and mass trials of bivoltine silkworm hybrid combination of different sources during traditional spring rearing.
Personnel :Bakshi RL, Ahsan MM
Project Period :1985-1986
Results/Recommendation :Towards the end of the period under report 6 incubation-cum-chawki centers were established for distribution of 351 ounces of loose and 11740 dfls of bivoltine hybrids of various sources in the field after chawki rearing.
Source of Information :Annual Report:1984-85
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Farmers training programme.
Project Period :1990-1991
Objectives :To provide training to farmers/rearers regarding improved techniques of silkworm rearing and mulberry cultivation.
Results/Recommendation :A total of 20 farmers were trained during the year at the centre.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Stabilization of commercial cocoon crops in the field with farmers at REC, Unnao.
Personnel : Meera Verma, Kumar P, Mani HC, Sumbli SN
Project Period :1996-1997
Objectives :To maintain and stabilize multiple cropping pattern in silkworm rearing.
Results/Recommendation :A smooth and self-supporting system of marketing of cocoons produced, by the farmers of REC, Unnao has consolidated the gain obtained in the successful introduction sericulture in a totally non-traditional area. The achievements of REC, Unnao has been landed by the State Sericulture Department for its success in crop stabilization and quality of the cocoon production.
Source of Information :Annual Report:1996-97
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Technology assessment, refinement and transfer to increase productivity and profitability in sericulture in J & K state.
Personnel : Khan MA, Quadir SM, Rajinder Kour, Mir MR, Zeya SB, Bhat GH, Mohd. Aslam
Project Period :1999-2002
Objectives :To increase the cocoon and mulberry leaf production in J & K state.
Results/Recommendation:
· Nursery Technology: In TR10 the survival was 77.05% in treated as against 64.9% in control.
· Technology for trees to be established: 30 saplings of TR10 were planted giving all inputs viz., FYM, biofertilizer and bio-pesticide whereas remaining thirty saplings of same variety were planted as per conventional method.
· Technology for established trees: Out of fifty trees selected 25 trees (treated) have been given recommended technology package for leaf/shoot harvest by bottom pruning during spring rearing season and pruning of shoots at middle level during autumn rearing; whereas, the remaining twenty five plant (control) have been given the conventional cultural practices in vogue.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Collaborative Technology Assessment and Demonstration Programme (CTADP) - Mulberry leaf production technology to increase productivity and profitability in sericulture under sub-tropical conditions in J & K.
Personnel :Anil Dhar, Tripathi M
Project Period :1999-2002
Objectives :Testing of technologies developed by RSRS, Jammu for mulberry plantation coupled with the fine tuning of the technologies developed elsewhere as per the action plan.
Results/Recommendation:From the second trial, the survival data of saplings recorded after 10 months (Nov.2001) revealed that in TR10 survival was 82.30% in treated as against 74.10% in control; whereas, in S146 the survival was 48.60% in treated as against in control with 38.5%. Out of fifty trees, 25 trees (treated) have been given the recommended technology package for leaf/shoot harvest by bottom pruning during spring rearing season and pruning of shoots at middle level during autumn rearing; whereas the remaining twenty five plants (control) have been given the conventional cultural practices in vogue.
Source of Information :Annual Report:2001-02
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Testing of technology of CSR&TI, Mysore.
Personnel : Singh BD, Rajat Mohan.
Project Period :2000-2001
Objectives :To evaluate the promising mulberry genotypes of CSR&TI, Mysore for Northern region.
Results/Recommendation :Fifty cuttings each of V1, MR2, RFS175 and BR2 were brought from CSR&TI, Mysore. The survivability is as follows. V1-54%, MR2-52%, BR2-68% and RFS175-62%, low survival may be due to the sudden change in environment mental and edaphic conditions, which may improve after acclimatization.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :On farm trial of sericultural technologies recommended by RSRS, Sahaspur to assess their impact on cocoon productivity at farmers level in Doon valley.
Personnel :Verma VK, Srivastava VB, Sahni NK, Paliwal S, Chakravarti S, Ramakant
Project Period :2003-2005
Objectives :To assess their impact on cocoon productivity at farmers level in Doon valley.
Results/Recommendation :For this study 10 farmers were adopted in village Bahiwalla in Dehradun district, for comparison with other 10 non-adopted farmers. Under this project following sericultural technologies were demonstrated.
· Pruning schedule: Bottom pruning at the height of 6" from the crown level during last week of June in bush and tree plantation during last week of December was given.
· Cultural operations: Digging, weeding etc.
· Fertilizer application: N:P:K-100:50:50 kg/ha/yr.
· Proper disinfections of rearing articles and houses.
· Selection of leaf according to age of silkworm.
· Leaf preservation.
Improved rearing techniques: Proper maintenance of environmental condition, bed disinfection, care during chawki rearing, use of bed cleaning nets, proper spacing, hygienic maintenance, care during moulting, proper mounting of ripe worms and sorting of cocoons before marketing, was ensured.
Authorized silkworm hybrid SH6 x NB4D2 was reared in both the crops, Demonstration of following sericultural technologies during spring and autumn crop 2004 was taken up.
Source of Information :Annual Report:2004-05
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Annexure
Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of mulberry through evolution of triploids.
Project Period :1993-1994
Results/Recommendation :No further triploid crosses could be materialized during spring 1994 due to uprooting of the source polyploid genetic stocks as a consequence of ongoing civil construction for RSRS at Miransahib.
Source of Information :Annual Report:1993-94
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :The effect of different levels of irrigation on the growth and yield of mulberry.
Project Period :1981
Objectives :To determine the effect of different levels of irrigation on the growth and yield of mulberry.
Results/Recommendation :No result.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on minimum number of buds required for propagation of stem cuttings in mulberry.
Personnel: Chakrabarti S, Bhakuni BS, Fotadar RK
Project Period :1981-1982
Objectives :To standardize number buds for propagation of stem cuttings in mulberry.
Results/Recommendation :Under this experiment 6 types of cuttings, i.e., cuttings having one, two, three, four, five and six buds were selected and propagated. Besides survivability percentage, characters regarding morphology of the root and shoot i.e., number of branches, branch length, number of buds, fresh and dry weight of root and shoot, number of primary roots and maximum length of primary root is recorded.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Control of weeds by application of weedicides.
Personnel : Sahai V, Thippeswamy T
Project Period :1982
Results/Recommendation :No result
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of spacing on the leaf yield of mulberry.
Project Period :1982
Objectives :To determine the optimum spacing for raising mulberry in private holdings by the rearers under the agro-climatic conditions of Kashmir.
Results/Recommendation : (This expt. is modified in the year 1983-84)
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on weed flora growing under mulberry cultivation in Kashmir - Effect of density of weeds on the leaf yield of mulberry.
Personnel : Chakrabarti S, Bhakuni BS
Project Period :1982
Objectives :To study the effect of weeds on the leaf yield of mulberry.
Results/Recommendation :No result.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Survey of soil for mulberry cultivation in univoltine tracts of India.
Project Period :1982
Results/Recommendation :No result.
Source of Information :Annual Report:1982-83
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Effect of different levels of nitrogen on the quality and quantity of leaf yield under temperate conditions.
Personnel : Fotadar RK, Rajinder Kour, Sumbli SN
Project Period :1990-1991
Objectives :To maximize the leaf yield by optimizing the nitrogenous inputs at an economic level.
Results/Recommendation :The experiment has been laid in Randomized Block Design with four replications and the observations would be recorded from 1991-92 onwards.
Source of Information :Annual Report:1990-91
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Comparative study of soil and foliar application of nitrogen in the maximization of quality mulberry and cocoon production.
Project Period :1992-1996
Objectives :The objective of the experiment is the efficient utilization of nitrogen in the maximization of quality mulberry leaf yield as well as quality cocoon production.
Source of Information :Annual Report:1992-93
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SubjectIndex :si 12
Sl No :140
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of mulberry under temperate climatic conditions-Improvement of temperate mulberry varieties for vegetative propagation through stem cuttings.
Personnel : Baksh S, Mir MR
Project Period :1995-2000
Objectives :To improve the temperate varieties viz., Ichinose, KNG and Goshoerami in terms of root ability of their stem cuttings.
Results/Recommendation :In order to test these genotypes for their suitability as trees under rainfed condition in Kashmir, following study has been taken up. It has been presented before Research council meeting and the RAC. The latter has recommended it to be conducted as a part of project "Unified package of practices of mulberry cultivation under rainfed conditions of North India".
Source of Information :Annual Report:1994-95
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement in leaf productivity of mulberry plantation in U.P under rainfed and irrigated condition.
Personnel : Srivastava VB, Dhingra RK, Sumbli SN
Objectives :To evolve a suitable agronomical package to maximize leaf yield per unit area.
Source of Information :Annual Report:1997-98
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Studies on intercropping under mulberry trees.
Project Period :2001-2002
Objectives: To develop economically viable models of intercropping in mulberry.
Results/Recommendation :The plantation is in establishment stage. The experimental plantation was raised during January 2001. Regular cultural practices viz., weeding, digging, watering, basin preparation and inputs were carried out during the year.
Source of Information :Annual Report:2000-01
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Biochemical evaluation of seven promising mulberry varieties under the sub-tropical conditions of Jammu.
Project Period :1993
Objectives :To rank the seven promising mulberry varieties as per their biochemical constitution under the sub-tropical conditions of Jammu.
Source of Information :Annual Report:1992-93
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Pathological studies on important mulberry diseases.
Personnel :Sahai V, Thippeswamy T
Project Period :1982
Objectives :To identify the mulberry diseases and also to recommend measures of their control.
Source of Information :Annual Report:1982
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Evaluation of new lines and combining ability studies.
Project Period :1989-1990
Objectives :To assess newly evolved lines for replacement of old P3 stock.
Results/Recommendation :Progress
Source of Information :Annual Report:1989-90
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Project No.:CSP
Organization :Central Sericulture Research and Training Institute, Pampore
Project Title :Improvement of high yielding bivoltine silkworm races with higher economic traits with special stress on higher shell weight.
Personnel : Razdan JL, Siddiqui AA, Bali RK, Prabir Mukherjee
Funding Source :Plan & Non-plan capt,
Project Period :1990-1991
Objectives :To study genetic architecture of popular silkworm races and newly evolved lines.
Source of Information :Annual Report:1990-91
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CSTRI-Bangalore Projects
Silk Reeling
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Improved pedal spinning wheel.
Project Period :1983-1984
Objectives :To improve the existing wooden pedal spinning wheel.
Results/Recommendations :Wooden parts were replaced by metal for sturdy construction. Pedal wheels are provided with ball bearing for free and smooth pedalling so as to avoid uneasiness to the spinner, resulting in increase of spindle speed for higher production.
Source of Information :Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of multivoltine cocoons on an automatic reeling machine with 21d and 31d denier indicator.
Project Period :1983-1984
Objectives: To study the reeling performance of multivoltine cocoons on an automatic reeling machine with different denier indicator.
Results/Recommendations :Reeling performance in respect of renditta and reelability was not varying significantly for different denier indicators, the production rate with the same reeling speed (150rpm) was significantly higher for coarser indicators resulting that the reeler was feeling little uneasy to maintain 15d throughout the reeling period. So speed has to be reduced for coarser denier as compared to finer.
Source of Information: Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of bivoltine and multivoltine cocoons on an automatic reeling machine.
Project Period :1983-1984
Objectives :To know comparative reeling performances of bivoltine and multivoltine cocoons on an automatic reeling machine.
Results/Recommendations :It was found from the results that reeling performance of bivoltine cocoons on an automatic reeling technique was better as compared to that of multivoltine cocoons.
Source of Information :Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Standardization of pressurized conveyor cooking systems for both bivoltine and multivoltine cocoons on an automatic reeling machine.
Project Period :1983-1984
Objectives :To standardize cocoon boiling methods for various types of cocoons.
Results/Recommendations :The cocoons were cooled in pressurized conveyor cooking machine, at five different stages namely soaking , steaming, boiling, adjusting and finishing
Source of Information :Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of multivoltine hybrid cocoons on CSTRI, improved charaka and automatic reeling.
Project Period :1983-1984
Objectives :To know the comparative reeling performances of multivoltine hybrid cocoons on CSTRI improved charaka and automatic reeling machine.
Results/Recommendations :It is evident that the reeling performance of multivoltine hybrid cocoons is better on improved charakas as compared to an automatic reeling machine.
Source of Information :Annual Report:1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of reciprocal multivoltine hybrid cocoons on CSTRI improved charaka.
Project Period :1983-1984
Objectives :To study the difference in reeling performance of two types of hybrid cocoons namely: Pure Mysore x bivoltine and bivoltine x Pure Mysore.
Results/Recommendations :There was no significant difference in overall renditta between the two hybrids although the defective percentage was higher in Pure Mysore x bivoltine. There was no difference in colour of raw silk reeled from the two types of hybrids.
Source of Information :Annual Report:1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Fabrication of Improved Charaka.
Project Period :1983-1984
Objectives :To come out with a very useful improved charaka without disturbing the fundamental principles involved in crude charaka.
Results/Recommendations :
· The resulted charaka have better working condition and producing quality raw silk without affecting production and yield.
· It is simple in its working and also its cost is well within a reasonable limit of about Rs. 800.
Source of Information :Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Evaluating the performance of CSTRI improved charaka with reeling of different lots of multivoltine cocoons.
Project Period :1984-1985
Objectives :To verify the performance of CSTRI improved charaka with reeling of different lots of multivoltine hybrid cocoons.
Results/Recommendations : It is seen from the results that it is possible to attain the production of 845 gms/8 hrs on CSTRI improved charaka with a denier of 30.5. Average renditta was 10 and corresponding raw silk percentage was 60%.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Mass reeling performance of multivoltine hybrid cocoons procured from different areas viz., Ramanagaram, Vijayapura and Kollegal on CSTRI improved charaka.
Project Period :1984-1985
Objectives : To know the difference in mass reeling performance of multivoltine hybrid cocoons procured from different areas viz., Ramanagaram, Vijayapura and Kollegal on CSTRI improved charaka the following study was undertaken.
Results/Recommendations :From the experiment even with different lots of cocoons procured from 3 cocoon markets, the reeling performance of improved CSTRI charaka was satisfactory, attaining the production rate of 879gms/8hr with 32.2 denier.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling and winding performance of multivoltine cocoons on CSTRI improved charaka with ordinary system of reeling and grant reel system.
Project Period :1984-1985
Objectives :To find out the comparative merits and demerits of ordinary system v/s Grant reel system of reeling on CSTRI improved charaka.
Results/Recommendations :During reeling it was observed that grant reel system showed 29.1 breaks/hour/4 ends as against 22.5 breaks/hr/4 ends shown by ordinary system. In winding also it was experienced difficulty in finding broken end in grant reel system resulting in more winding wastage as compared to ordinary system.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of multivoltine hybrid cocoons (steam stifled and hot air stifled) reeled on CSTRI improved charaka.
Project Period :1984-1985
Objectives :To find out the comparative reeling performance of steam stifled and hot air stifled multivoltine hybrid cocoons on CSTRI improved charaka.
Results/Recommendations :It is noticed that in case of steam stifled cocoons showed better yield and reelability as compared to hot air stifled cocoons on CSTRI improved charaka. It is noted that in case of steam stifled cocoons the production was 95.6 gms/hr/4 ends with 24.28 d as compared to 91.1 gms/hr/4 ends with 25.68 d in the case of hot air stifled cocoons.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Fabrication of CSTRI improved charaka in multiple in the Institute.
Project Period :1984-1985
Objectives :To fabricate more number of improved charaka units on the basis of standardized unit already designed earlier.
Results/Recommendations :The production rate on all the four units was consistent and around 860 gms/8hr for 29.6 denier. In winding the breakage rate was 1.2 breaks/skein/hr, which was also satisfactory. Therefore, it indicated that the fabrication of improved charaka units in multiple in the Institute was perfect.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on comparative reeling performance of multi-bi (PM x BV) and bi-multi (BV x PM) cocoons on CSTRI improved charaka as well as automatic reeling machine.
Project Period :1984-1985
Objectives :To know the comparative reeling performance of multi-bi and bi-multi cocoons on CSTRI improved charaka and automatic reeling machine
Results/Recommendations :Results indicated that multi-bi cocoons showed a better yield (Renditta) raw silk percentage (9.4 & 66.0% respectively against bi-multi cocoons (10.6 & 58.0%) on CSTRI improved charaka. Likewise on automatic reeling machine also multi-bi cocoons showed better yield and low silk percentage against the renditta and raw silk percentage of silk bi-multi cocoons.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative spinning performance of Bivoltine pierced cocoons on CSTRI pedal spinning shell and Chowdhury pedal spinning wheel
Project Period :1984-1985
Objectives :To find out the comparative difference in spinning performance of bivoltine pierced cocoons on CSTRI pedal spinning wheel and chowdhury pedal spinning wheel.
Results/Recommendations : It is observed that spinning was easier for finer counts on CSTRI pedal spinning wheel under identical conditions compared to Chowdhury pedal spinnning wheel. Infact production in terms of length was also more on CSTRI spinning wheel.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling studies on the traditional and CSTRI improved charaka at Sidlaghatta.
Project Period :1984-1985
Objectives :To evaluate the performance and suitability of improved charaka designed by CSTRI Bangalore in silk reeling industry with its better working conditions and to produce quality silk without affecting yield and production.
Results/Recommendations : The overall renditta for two improved charaka was 8.22 as compared to 8.15 on traditional charaka. The waste percentage on improved charaka was 28.35 as compared to 26.50 on traditional charaka. The waste percentage on improved charaka was more by 1.85 than on traditional charaka because it did not allow slubs and some residual pelade layers to go along with the reeled silk resulting in better cleanness characteristics of raw silk.
Source of Information :Annual Report: 1985-86
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on water suitability in cooking, reeling and wet processing.
Project Period :1986-1991
Objectives : To find out the suitability of water for better performance in cooking, reeling and wet processing to produce improved quality of silk.
Results/Recommendations : Chemically softened water (90ppm) improved cooking, reeling performance and the raw silk recovery increased to the extent of 1.8% to 13.3%. It was also observed from the field trials that the reelers showed keen interest in using the CSTRI water softening chemical for softening the water during silk reeling as the treatment yield better quality silk with higher returns.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming of pierced/cut cocoons.
Project Period :1986-1987
Objectives : To find out the degumming loss in multivoltine, bivoltine and eri pierced cocoons.
Results/Recommendations : From the results, the average degumming loss in multivoltine, bivoltine and eri-pierced/cut cocoons were 28.0%, 25.0% and 12.20% respectively.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Trial reeling studies on prototype reeling machine supplied by various firms.
Project Period :1986-1987
Objectives : To evaluate the reeling performance of multivoltine hybrid cocoons on multiend reeling machine supplied by various manufacturers.
Results/Recommendations :Some improvement mechanism like setting up of standard height of the machine, adjustment of the basin, guide pulleys and perfect alignment etc., were made by the Institute.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Reeling performance of multivoltine cocoons on improved charaka and on automatic reeling machine.
Project Period :1986-1987
Objectives : To evaluate the reeling performance of multivoltine cocoons on improved charaka and automatic reeling machine.
Results/Recommendations : It was observed that renditta was 11.0 in improved charaka and 11.3 in automatic reeling machine. Renditta was higher on automatic reeling machine.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Standardization of Tension on yarn during reeling.
Project Period :1986-1987
Objectives : To assess the tension and standards in various reeling devices.
Results/Recommendations :Actual tension was 0.37gm/denier. The tension is slightly higher as compared to ordinary charaka on account of slub catcher and croissure. However, tension helps in improving the quality of silk.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiment on the effect of different driage percentage of multivoltine hybrid and bivoltine hybrid cocoons on reeling performance with cottage basin and on automatic reeling machine.
Project Period :1986-1989
Objectives : To optimize the driage percentage for multivoltine hybrid cocoons, so as to obtain maximum reeling performance on cottage basin and on automatic reeling machine.
Results/Recommendations :In hot air drying method multivoltine hybrid cocoons dried at 16% driage level reeled on cottage basin and also on automatic reeling machine showed better renditta as compared to 31% and 46% driage levels. An increasing trend in renditta was observed as the driage level increases.
For reeling multivoltine cocoons, stifling by steam and reeling on cottage basin, associated with open pan cooking was more suitable and gives better reeling performance as compared to hot air drying and reeling.
Source of Information :Annual Report: 1986-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on the partial degumming and drying of raw silk.
Project Period :1987-1988
Objectives :To study the effect of partial degumming and drying on tenacity and elongation of raw silk.
Results/Recommendations : The tenacity and elongation of partially degummed multivoltine silk were reduced by 17.3% and 24% respectively where as the tenacity and elongation of partially degummed bivoltine silk were reduced by 15.0% and 17.61% respectively.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on CSTRI hand spinning wheel.
Project Period :1987-1988
Objectives : To conduct studies on the spinning performance of different varieties of pierced cocoons on CSTRI hand spinning wheel.
Results/Recommendations : One lot of eri pierced cocoons was spun on the hand spinning wheel. The average yarn yield% was 63.3% and the yarn spun/hour was 7.6 gms of 141.5 mt length the counts of the yarn was 11S English count.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Improvement/Fabrication of multiend reeling machine.
Project Period :1987-1989
Objectives : To develop one multiend reeling machine which will be suitable for reeling both multivoltine and bivoltine cocoons and to produce better quality silk.
Results/Recommendations : 32 kgs of steam stifled multivoltine cocoons were reeled on the multiend reeling machine associated with open pan cooking. Average renditta and waste percentage of the cocoons were found to be 9.2 and 26.8 respectively. Production of raw silk obtained in a period of 8 hrs working, found to be around one kg.
The CSTRI multiend reeling machine continued to show better reeling performance with improved quality of silk.
Source of Information :Annual Report: 1987-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Use of CSTRI economic oven on cottage basin reeling units.
Project Period :1987-1989
Objectives :To improve working conditions, avoiding smoke and saving fuels by installing economic oven in cottage basin reeling units.
Results/Recommendations : In the two days trials conducted one CSTRI economic oven installed, found saving fuel to the extent of 348 (35%). In the two days trials conducted, another one economic oven installed in other cottage basin reeling unit found saving fuel to the extent of 25%.
When the fuel door was opened, the efficiency was lower. The efficiency was found to be higher with hinged does as compared to sliding door in economic oven used for cottage basin.
Source of Information :Annual Report: 1987-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiment on hot air drying method for bivoltine cocoons at different driage levels and comparison of its reeling performance of cottage basin and an automatic reeling machine.
Project Period :1987-1989
Objectives :To optimize the driage percentage for bivoltine cocoons so as to obtain maximum reeling performance, on cottage basin and an automatic reeling machine, the study was taken up.
Results/Recommendations :In hot air drying method bivoltine cocoons dried at 16% driage level reeled on cottage basin and also on automatic reeling machine showed better renditta as compared to the 31% and 46% driage levels.
Source of Information :Annual Report: 1987-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Installation and demonstration of multiend machine reeling in rural areas.
Project Period :1988-1989
Objectives :To propagate multiend reeling machine to produce better grade silk among the reelers.
Results/Recommendations :The reeling performance was satisfactory. The opinion of the reeler was that the machine needs training. The machine gave some break down due to mechanical imperfectness.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiments on energy requirements of hot air oven.
Project Period :1988-1989
Objectives : To find out the power requirements to dry one kg of bivoltine cocoons in hot air oven.
Results/Recommendations : From the data it was found that to dry on kg of bivoltine cocoons in hot air oven about 36 paise were required.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiments on fuel consumption of ovens used for cocoons cooking and reeling.
Project Period :1988-1989
Objectives : To study the fuel consumption on conventional and economic ovens used for charaka and cottage basin units.
Results/Recommendations : From the results, it was found that about 20-25% saving of fuel was obtained in economic areas attached to charakas and 25-30% saving of fuel in case of economic oven provided for cottage basin/multiend reeling machine.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiment on the volumetric analysis of fresh cocoons verses hot air dried cocoons and steam stifled cocoons.
Project Period :1988-1989
Objectives : To assess the suitability of stifled cocoons for marketing using volumetric measuring system.
Results/Recommendations : The cocoons after steam stifling have not shown any significant change in volume. However, hot air dried cocoons showed an increase in volume.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative reeling performance of CSTRI multiend reeling machine, Alltex multiend reeling machine, cottage basin and automatic reeling machine.
Project Period :1988-1989
Objectives : To study the performance of different reeling devices.
Results/Recommendations : From the results, renditta of cocoons reeled on CSTRI multiend reeling machine and Alltex multiend reeling machine was found to be almost same. The renditta of some cocoons reeled on automatic reeling machine was found to be slightly higher as compared to the CSTRI and Alltex multiend reeling machine.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Reeling performance of multiend reeling machine manufactured as per the patent and specifications of CSTRI.
Project Period :1990-1991
Objectives : To know the reeling performance of multiend reeling machine.
Results/Recommendations : It was observed that yarn tension during reeling was 0.355 gm/denier in CSTRI patented multiend reeling machines. From the results the average reeling performance and quality characteristics of all the multiend reeling machines were found to be satisfactory.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on the qualitative characteristics of cocoons from different regions and seasons and its reeling performance on CSTRI multiend reeling machine.
Project Period :1990-1991
Objectives : To assess the quality characteristics of cocoons from different races, regions and seasons and to study the reeling performance.
Results/Recommendations : It was found that the hybrid races namely NB4D2 x KA and KA x NB4D2 gave better reeling performance when compared to the pure races. But from another experiment, it was observed that pure race (NB4D2) gave better reeling performance when compared to the other pure races. The overall quality of silk reeled stood upto 'A' grade in hybrid races.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Fabrication of cottage type steam stifling chamber without boiler.
Project Period :1990-1991
Objectives :To popularize chamber type steam stifling in rural areas without using boiler.
Results/Recommendations : It was observed that the cocoons were steam stifled effectively in cottage type steam stifling chamber. The reeling performance and quality of raw silk were found to be satisfactory. However, the firewood should be continuously fed to maintain the steam pressure. About 80-100kg of cocoons can be stifled in a day with the consumption of 18-20kg fire wood.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Effect of pre-steaming on hot air dried multivoltine cocoons.
Project Period :1990-1991
Objectives : The study has been initiated to find out the reeling performance of long stored hot air dried cocoons after pre-steaming.
Results/Recommendations : It was observed that steam stifled cocoons showed lowest renditta compared to hot air dried cocoons. However, pre-steamed hot air dried cocoons showed a decrease of 0.5-0.6 renditta when compared to hot air-dried cocoons. The trend was observed in all the lots of cocoons reeled so far.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Effect of storage on reeling performance of steam stifled and hot air dried multivoltine cocoons.
Project Period :1990-1991
Objectives : To find out the reeling performance of multivoltine cocoons stored for long periods.
Results/Recommendations : It was observed from the results that there was increasing trend in renditta on storage for both steam stifled and hot air dried multivoltine cocoons.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Construction of new economic oven of using husk as fuel for charaka and cottage basin.
Project Period :1990-1991
Objectives : To evolve smokeless chulas economic oven that can be adopted with different types of fuel available locally.
Results/Recommendations : The incorporation of the economizer to the cottage basin oven has helped in supplying continuous boiling water for cooking and reeling reduces the time taken to reach the boiling point and minimizes the heat loss.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on performance of Ushnakothi in different parts of the country.
Project Period :1990-1991
Objectives :To study the reeling performance and to standardize the process parameters of multivoltine cocoons stifled in Ushnakothi.
Results/Recommendations :The cocoons stifled in bottom layers gave more driage when compared to top layers, the difference being 3-4 (%). The average driage percentage was found to be 17(%). Based on the data on reeling performance and quality characteristics, no significant difference in the characteristics was found between the cocoons stifled in different cocoons of Ushnakothi.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Popularization of CSTRI multiend reeling machine.
Project Period :1990-1993
Objectives :
· To promote multiend reeling machine/technique to produce better quality raw silk among reelers.
· To evaluate the specifications and performance of the CSTRI multiend reeling units manufacture by authorized manufacturer.
Results/Recommendations : Reeling performance and quality characteristics of silk reeled on CSTRI improved multiend reeling were satisfactory. The multiend reeling machines were having 0.35 gms/denier yarn tension during reeling. It was found that the production per basin per 8 hours in multiend reeling machine is more than that for cottage basin.
To promote multiend reeling machines training in multiend reeling technology were given under entrepreneur development programme (EDP) and similar training were given to department staff of Tamil Nadu and Andhra Pradesh at this Institute.
Source of Information :Annual Report: 1990-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Design and fabrication of improved reeling devices and ovens.
Project Period :1990-1991
Objectives :To modify the design of reeling devices and ovens towards improved working condition, production and quality.
Results/Recommendations :It has been observed that the multiend reeling machine produces gradeable silk from both multivoltine and bivoltine cocoons. Further the silk produced using size indicator maintains size deviation within a limit.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on the standardization of drying for multivoltine and bivoltine cocoons.
Project Period :1991-1992
Objectives :To evaluate different methods of stifling viz, steam stifling, hot air drying (batch and conveyor) Ushnakothi drying and sun drying with respect to the reeling performance and quality of silk.
Results/Recommendations :The steam stifled cocoons gave the lowest renditta when compared to that of hot air dried cocoons. Further, no significant difference in renditta was observed between the cocoons dried in batch type and conveyor type hot air driers for the same level. However, the cocoons dried in ushnakothi showed slight decrease in renditta.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on CSTRI multiend reeling machine towards optimization of the machine parameters.
Project Period :1991-1992
Objectives :To study the effect of reeling speed, croissure length, button hole size on the reeling performance and quality of raw silk with special reference to CSTRI multiend reeling machine.
Results/Recommendations :It was observed that from the results that as the reeling speed increased the yarn tension increased.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on cocoon cooking technique.
Project Period :1991-1992
Objectives :To work out suitable cooking parameters for both multivoltine and bivoltine cocoons.
Results/Recommendations :It was found that steam stifled cocoons cooked by open pan method gave the lowest renditta when compared to other methods of cooking. Both open pan and three pan methods of cooking gave better performance as compared to the pressurized cooking in case of hot air dried cocoons. It may be inferred that pressurized cooking is not suitable for both steam stifled and hot air dried multivoltine cocoon due to its loose structure.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Effect of alkalinity of water in silk reeling.
Project Period :1992-1993
Objectives :To optimize the alkalinity of water for cooking and reeling.
Results/Recommendations :Highly alkaline water removes excess of sericin in cooking which results in the loosening of the shell structure thereby affecting the reeling of silk and quality of raw silk. It is therefore inferred that alkalinity of water is ideal for (less than 100 ppm) cooking and reeling.
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on improved method of sun drying of cocoon using black cloth.
Project Period :1992-1993
Objectives : To utilize solar energy for stifling of cocoons to achieve optimum stifling and good recovery of silk.
Results/Recommendations :
· The black cloth sun drying of cocoons has the following advantages over the other two methods of sun drying.
· High solar energy utilization with faster rate of cocoon drying.
· Economical maintenance- free and quality of the cocoons is also maintained.
· Avoids exposure of cocoon to ultraviolet rays to a large extent, thereby maintaining the quality of raw silk.
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Process control gadgets in silk reeling development of hand operated panel winder.
Personnel : Hariraj G, Subhas V Naik, Mahesh KN
Project Period :1999-2001
Objectives :
· To develop a suitable process control and gadgets to improve the quality of raw silk.
· To develop a hand operated panel winder to assess the evenness characteristics of raw silk at production unit.
Results/Recommendations : Hand operated panel winder has been fabricated along with provision for small sized darkroom facility. The evenness variations and major cleanness defects could be evaluated in a filature.
Source of Information :Annual Report:2000-2001
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of vacuum permeation device for pre-treatment before cooking.
Personnel : Lakshmipathaiah BN, Sangappa N Shillin, Subhas V Naik
Project Period :1999-2000
Objectives : To develop pre-treatment techniques for cooking using vacuum permeation denier to improve the cooking efficiency and reelability of cocoons having poor reelability.
Results/Recommendations : The vacuum permeation device was developed and trials were conducted by varying vacuum pressure, permeation time and number of cycles. The reliability percentage has improved significantly in case of long stored cocoons wherein pre-treatment using vacuum permeation was carried out. It is observed that the vacuum pressure, duration and number of cycles have influenced the reeling performance.
Source of Information :Annual Report: 1999-2000
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of cooking machine suitable for Indian reeling unit.
Personnel : Lakshmipathaiah BN, Hariraj G, Subhas V Naik
Project Period :1999-2000
Objectives : To develop cooking machine for effective cooking of cocoons using appropriate cooking technique at economically viable cost.
Results/Recommendations :Fabrication of stationary pressurized cooking machine has been completed. The performance of the pressurized cooking machine is significantly better than open pan cooking both in terms of reeling and raw silk quality characteristics.
Source of Information :Annual Report: 1999-2000
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Design and Development of cooking equipment.
Personnel : Nagesh KN, Sangappa N Shillin, Subhas V Naik
Project Period :1999-2000
Objectives :To develop two pan cooking oven to cool 1-1.5kg of cocoons at a time effectively.
Results/Recommendations :Two pan cooking unit with an economic oven has been developed and experiments conducted. It is observed that the reeling performance and quality characteristics of raw silk are significantly better in cocoons cooked with two pan cooking equipment than the existing open pan method. The two pan cooking equipment is techno economically feasible and profitable than the open pan method.
Source of Information :Annual Report: 1999-2000
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Upgradation of equipments/technology for quality improvement (Fabrication of low cost multi fuel portable drying chamber).
Personnel : Lakshmipathaiah BN, Hariraj G, Subhas V Naik
Project Period :1999-2000
Objectives :
· To design and develop economically feasible equipments/technology for effective adoption in the field.
· To develop a low cost hot air drying device for economical drying of cocoons.
Results/Recommendations : A low cost hot air drying chamber has been fine tuned and constructed with brick wall structure instead of MS sheet and experiments were conducted. The trials indicated that the reeling performance and quality characteristics of the raw silk reeled from cocoons dried in low cost drier are on par with electrical drier. The cost of drying/kg of cocoons in low cost drier for optimum drying is Rs.1.14 against Rs.1.82 in electrical drier.
Source of Information :Annual Report: 1999-2000
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :JICA assisted PPPBST project (ST RLG 005)
Personnel : Somashekar TH, Subhas V Naik, Hariraj G
Project Period :2000-2001
Objectives :To develop suitable bivoltine silk reeling technology under Indian conditions.
Results/Recommendations :The bivoltine silk reeling technology package was demonstrated to 41 reelers and DOS officials from Channapatna (Karnataka) and Coimbatore (T.N.) at multiend reelers. 112 samples of CSR race bivoltine hybrid cocoons procured from identified farmers have been reeled for fine tuning of bivoltine silk reeling package along with the feedback received from the field trials. The feedback revealed that the programme were quite useful in understanding practical bivoltine silk reeling Technology package for the production of superior grade raw silk.
Source of Information :Annual Report: 2000-01
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Process control gadgets in silk reeling (ST RL 004)
Personnel : Somashekar TH, Lakshmipathaiah BN, Subhas V Naik
Project Period :2000-2001
Objectives :To develop good process control gadgets in silk reeling.
Results/Recommendations :Process control gadgets viz., Hand operated panel winder, Tail end cutter and slub catcher were developed during last Year. The validation of these gadgets through effective demonstration of the gadgets is being done in different reeling clusters 6 panel winders, 3000 tail end cutters and 400 slub catchers and 50 slit buttons manufactured as per the CSTRI specifications and are being effectively used in the field. Performance of the slit button is significantly better than the existing conventional porcelain buttons (always with larger hole size) both in terms of quality of raw silk and easy threading.
Source of Information :Annual Report: 2000-01
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of Elliptical type of denier detecting and mechanical indicating device for multiend reeling machine.
Personnel :Subhas V Naik, Hariraj G, Mahesh KN
Project Period :2001-2004
Objectives :To design and drawing of various parts of denier detector and mechanical indicating device.
Results/Recommendations :500 pieces of denier detectors have been fabricated as per CSTRI design with assistance from a manufacturer. Testing of these denier detectors has been completed and the performance of the denier detectors is satisfactory, achieving the expected levels of performance.
Source of Information :Annual Report: 2003-04
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Reeling of web structured, mechanically crimped, bulky raw silk, using differential rotary mechanism from inferior quality cocoons.
Personnel : Hariraj G, Subhas V Naik, Mahesh KN
Project Period :2001-2004
Objectives: To study the quality of raw silk cocoons reeled from inferior quality cocoons.
Results/Recommendations : The web silk reeling machine has been fabricated as per the design and specification of CSTRI by one of CSTRI authorized machine manufacturers at Bangalore. The machine consists of the following parts viz. Roto traverse mechanism, cocoon filament guide rod, guides for accumulating the web, reeling basin and reels with traverse mechanism to wind the web silk. Trials have been conducted and found the web silk reeling machine is working satisfactorily.
Source of Information :Annual Report: 2003-04
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Chemical Processing
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Experiment on the uses of enzymes for degumming of raw silk.
Project Period :1986-1987
Objectives :To study the sericin loss in silk with enzyme and to know at what level of degumming loss, dye affinity is better without affecting the quality.
Results/Recommendations :The degumming loss of bivoltine raw silk was found in the range of 26.5% to 29.5% using 0.2 gpl to 1 gpl. Trolozyme, whereas degumming loss of multivoltine raw silk was in the range of 25.4% to 27.7% with 0.2 gpl to 1 gpl Trolozyme.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on the partial degumming and dyeing of raw silk.
Project Period :1986-1987
Objectives :To find out partial retention of sericin and its effect on dye affinity and wash fastness of raw silk.
Results/Recommendations :The difference in wash fastness between fully degummed and partially degummed yarn was not noticed by usual test. However the samples are to be tested by using geay scale.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming of silk with VILOTAK - SDG chemical supplied by M/s Bakul Fine Chem Research Centre, Bombay.
Project Period :1987-1988
Objectives :To find out the suitability of using Vilotak-SDG for the purpose of degumming silk.
Results/Recommendations :The degumming process was carried out 10 times in a single bath containing Vilotak-SDG by adjusting the pH to 10.5 and the average degumming loss was 23.5%, whereas the degumming process was carried out 5 times in a single bath of conventional method and the average degumming loss was 23.4%
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Application of Resin finish on silk fabric.
Project Period :1989-1990
Objectives :To improve the crease recovery of silk fabric.
Results/Recommendations : The crease recovery angle after 15 minutes in warp way and weft way was increased by about 20% and 38% respectively.
Source of Information :Annual Report: 1989-90
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Degumming of silk waste for optimum spinning parameters.
Project Period :1991-1992
Objectives : To standardize the degumming parameters of silk waste for optimum spinning performance.
Results/Recommendations :It has been observed that tenacity of spun yarn decreased with increase in the concentrations of soap and soda enhanced duration of treatment with lower concentration of soap and soda has improved the tenacity of the spun yarn.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming of silk using different commercial detergents/soaps.
Project Period :1992-1993
Objectives : To investigate the economical usage of commercial soap/detergents for efficient degumming and optimize degumming process conditions without affecting the fibre properties.
Results/Recommendations : It is observed that there is significant increase in the degumming loss with an increase in concentration of soap/detergent upto the level of 5 gpl, after which there is no significant increase in degumming loss. There is an increase in tenacity, which associated with the increased degumming loss, which is presumably due to the denier getting finer.
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on the use of standing bath for degumming of silk.
Project Period :1992-1993
Objectives :To investigate the effective and economical usage of standing bath for degumming of silk.
Results/Recommendations :It was found that the degumming loss decreased with the increase in number of standing baths. The degumming was also carried out using additional quantity (incremental) of soap and soda to the standing bath. It was observed that the degumming loss was uniform upto 4th bath and there was a slight decrease in degumming loss in the 5th bath.
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on partial degumming of silk.
Project Period :1992-1993
Objectives :To investigate the partial degumming of silk and optimize the degumming condition and effect of partial retention of gum on dyeing.
Results/Recommendations :Partial degumming can be achieved by using 1 gpl soap noodles and 6 cc/lt, Suplhuric acid (20%) at boil within half the period of full degumming without affecting the quality of silk.
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on development of soaking recipe.
Personnel : Vasumathi BV, Lakshmipathaiah BN, Somashekar TH
Project Period :1999-2001
Objectives :To develop the optimum soaking recipe for raw silk.
Results/Recommendations :36 soaking trials with ground nut oil and soap for fine tuning the concentration and soaking duration were conducted. Multivariate analysis showed that the main effects of soaking concentration and duration have significant effect while their interaction was not significant. The optimum concentration of soap and oil are 2% and 40% respectively and duration is 14 hours.
Source of Information :Annual Report: 2000-2001
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Silk Throwing and Weaving
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Weaving of fabrics with different natural silk yarns as warp and weft and studied on the quality of fabric.
Project Period :1987-1988
Objectives : To find out the crease recovery, strength, bursting strength, lustre etc, of dress materials woven with different natural silk yarns.
Results/Recommendations : The crease recovery of degummed fabric immediately and after 5 minutes was found to use 112 and 123 in warp way and 122 and 134 in weft way. Shrinkage percentage was 4 in warp way and 6 in weft way.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on twisting of mulberry and non-mulberry raw silk.
Project Period :1987-1988
Objectives :To standardize the twist factor for the various special yarns such as tram, crepe, georgette, organzine etc., in relation to its dynamometric properties.
Results/Recommendations : The mulberry, Tasar and muga samples were wound on to bobbins on winding machine at 110m/min. These single thread samples were then twisted with the twist range of 600 - 3200 Tpm in steps of 200Tpm.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Weaving of fabric with yarns reeled from cocoons dried at different driage levels (i.e. 16%, 31%, 46% and steam stifled) as warp and weft and studies on the quality of fabric woven.
Project Period :1988-1989
Objectives :To find out the difference in quality of fabrics woven.
Results/Recommendations : The fabric after degumming was found to have 18/2 denier warp and weft and 124 ends/inch 82/picks/inch. The weight of the fabric per square meter after degumming was 31.17g. The degumming loss was 22.76%.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on weaving of fabric on power loom and handloom using same warp and weft.
Project Period :1990-1991
Objectives : To compare the quality of fabrics woven on power loom and handloom using the same warp and weft.
Results/Recommendations : Variation in the thread density of the fabrics in the weft recorded was due to weaving in the pit loom. Due to increase in picks/inch, wt/sq. mt and fabric cover increased in both pit loom and power loom fabrics.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on weaving using different natural silk yarn as warp and different natural silks and man made fibre yarn as weft and characterization of fabrics.
Project Period :1990-1991
Objectives: To study on weaving parameters of different natural silk yarn as warp and man made fibre yarn as weft on characterization of fabrics.
Results/Recommendations : Variation in the thread density of the fabrics in the weft was recorded due to variation in the denier. Due to increase in the denier of the weft yarn, the thickness, weight/sq. mt and cover factor of fabric increased.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on kinetics of twisting with reference to crepe, georgette and chiffon etc.
Project Period :1990-1991
Objectives :
· To identify various machine parameters, process parameters in relation to processing performance and end product quality.
· To identify the variation in the yarn characteristics in relation to twisting and fabric defects.
Results/Recommendations : Ends and picks/inch of the degummed fabrics are more when compared to grey fabric. The degummed fabric has shown lower denier both in warp and weft direction. It may be due to the removal of gummy matters, flow fabrics.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on weaving of multivoltine and bivoltine raw silk.
Project Period :1990-1991
Objectives :
· To identify the difference in the quality of the fabrics produced with multivoltine and bivoltine silk yarns.
· To explore the possibility of adoption of anti-crack mechanism in silk loom.
Results/Recommendations :
· The tenacity, elongation, evenness, cleanness and neatness are better in bivoltine yarn than multivoltine yarn.
· The winding breaks are more in multivoltine yarn when compared to bivoltine yarn.
· Twisted bivoltine yarn showed better tenacity, lower elongation (%) as compared to multivoltine twisted yarn.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of Slub catcher.
Personnel : Hariraj G, Sangappa N Shillini, Lakshmipathaiah BN
Project Period :1999-2002
Objectives :To improve cleanness properties of raw silk by use of slub catcher, which removes, slubs and waste during the re-reeling process.
Results/Recommendations :The cleanness percentage of the raw silk can be improved by using slub catcher in re-reeling process. 400 numbers of slub catcher have been manufactured and demonstration and popularization is being carried out.
Source of Information :Annual Report: 1999-2002
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on weft knitted silk fabrics.
Personnel :Jameela khatoon, Vasumathi BV, Somashekar TH
Project Period :1999-2001
Objectives : To develop silk weft knitted fabrics to suit various end uses.
Results/Recommendations : The silk was divided into three batches and the first one retained in raw state while the second and third were partially degummed and fully degummed respectively. The first batch was knitted into single jersey, crepe and silk/cotton stripe structure second batch was knitted into single jersey and silk/cotton stripes and third one was knitted into single jersey and crepe structure. The performance of these yarns during knitting was found to be good and thus the yarn in any of these three states could be used for knitting.
Source of Information :Annual Report: 1999-2001
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Fabrication of tail end cutter.
Personnel : Hariraj G, Sangappa N Shillin, Lakshmipathaiah BN
Project Period :1999-2001
Objectives :To fabricate a tail end cutter for cutting the tails of the knots to the required length so that cleanness defects of raw silk are reduced.
Results/Recommendations :3000 numbers of tail end cutters have been manufactured. Demonstration and popularization of the gadgets is underway in different reeling clusters.
Source of Information :Annual Report: 2000-2001
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Evolving process norms for silk twisting and weaving (ST TWL-005).
Personnel :Vasumathi BV, Jameela khatoon, Nagaraj CR
Project Period :2000-2002
Objectives : To evolve CSTRI norms as measures of good performance which are worth achieving under the existing techno economic conditions.
Results/Recommendations : The norms were evolved from the vast amount of data collected from a large number of twisting and weaving units working in various clusters across the country and published.
Source of Information : Annual Report: 2001-2002
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Silk Testing
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Dynamometric properties of bivoltine silk and multivoltine silk with different loads.
Project Period :1984-1985
Objectives :To know the comparative studies on dynamometric properties of bivoltine silk samples and multivoltine silk samples with different loads.
Results/Recommendations :Tenacity and elongation percentage of bivoltine and multivoltine raw silk (both were reeled on auto machine) at 400gms load were 4.30g/d and 25.83% and 4.00 g/d and 19.84% respectively. There appears to be some influence of load on tenacity values.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on test results of various silk samples received from different States/Organizations.
Project Period :1984-1985
Objectives :To understand the quality parameters of silk yarn of different oganisations/states.
Results/Recommendations: Since the Institute is well equipped with sophisticated testing machine, various silk samples like raw silk, spun silk, noil yarn and dupion silk were regularly received from various States and Organizations were qualitatively tested and results are reported.
Denier variation was very high in case of multivoltine raw silk as compared to bivoltine where as in other parameters such as winding, doubling, twisting and degumming, there was no significant difference between the two varieties.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming loss percentage of two types of fabrics woven on hand loom.
Project Period :1984-1985
Objectives :To see the loss of degumming on two different silk fabrics.
Results/Recommendations :It was found from the experiment that degumming loss percentage for fabric one was 25% and for fabric two was 26.6%. There was no significant difference in degumming loss between the two fabrics.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on shrinkage and degumming properties of two fabrics.
Project Period :1984-1985
Objectives :To know the shrinkage and degumming properties of two fabrics, woven on handloom .
Results/Recommendations :The degumming loss percentage was 23.85 for fabric (1) and fabric (2). It appears that the closely woven fabric showed more shrinkage after wet processing. In this experiment EP1 rate was more in 2nd fabric so there was a significant higher shrinkage as compared to the fabric no. 1.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative studies on tenacity and elongation of multivoltine (PM x BV) and bivoltine raw silk reeled on automatic reeling machine and cottage basin.
Project Period :1986-1987
Objectives :To observe the effect of different methods of reeling and cooking on dynamometric properties of raw silk.
Results/Recommendations :From the results, it was observed that raw silk reeled on auto-reeling machine with multi x bivoltine and bivoltine cocoons showed higher tenacity as compared to that reeled on cottage basin.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Tensile behaviour of mulberry and non- mulberry raw silk.
Project Period :1986-1988
Objectives : To study the comparative assessment of tenacity and elongation characteristics of the mulberry and non-mulberry raw silk.
Results/Recommendations : It was observed from the results that wild silk (Tasar and Muga) in dry condition showed higher elongation compared to mulberry raw silk. But mulberry raw silk showed higher tenacity as compared to wild silk. Tasar silk showed the lowest tenacity as compared to all other kinds of silk.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Moisture regain of raw silk under different temperature and humidity
Project Period :1986-1987
Objectives : To arrive at ready reckoner for finding out the regain value of raw silk during transaction at particular temperature and humidity.
Results/Recommendations : Results showed that there was variation in regain between the lots indicating that the previous history of the silk sample has impact on moisture regain. There is no uniform direct relationship between moisture regain of the various lots and relative humidity indicating that it would be difficult to arrive at ready reference for estimating the moisture regain value of the silk lot at particular temperature and humidity.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Effect of seasonal variation on tenacity and elongation characteristics.
Project Period :1987-1988
Objectives : To assess the tenacity and elongation of multivoltine and bivoltine raw silk reeled from cocoons of different seasons on automatic reeling machine and cottage basins.
Results/Recommendations : From the results it was observed that the raw silk reeled on automatic reeling machine showed a higher tenacity and lower elongation as compared to that reeled on cottage basin.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Commercial testing of Raw silk.
Project Period :1989-1990
Objectives : To bring about quality awareness in silk industry and provide necessary guidance to the people in the industry the testing of commercial raw silk was initiated.
Results/Recommendations : It was revealed that the average winding breaks and size deviation of both charaka and cottage basin lots were very poor. In case of charaka silk, winding breaks of 70% of the total lots were more than 6 and size deviation of 85% of the total lots was more than 4. It was also found that cleanness defects and neatness defects were high.
Source of Information :Annual Report: 1989-90
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative strength of multivoltine and bivoltine raw silk.
Project Period :1989-1990
Objectives :To compare the strength and elongation of multivoltine and bivoltine raw silk.
Results/Recommendations :The initial results indicated higher strength for bivoltine raw silk. There was no significant difference in elongation.
Source of Information :Annual Report: 1989-90
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Simple method for cocoon testing and price fixation.
Project Period :1990-1991
Objectives : To assess the fixation of price on the basis of cocoon quality using formula evolved by CSTRI.
Results/Recommendations : It was observed that there was significant difference between the calculated price of the cocoons and auction price for both multivoltine and bivoltine cocoons. Based on the studies, it may be inferred that cocoon testing is necessary for proper price fixation.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on physical and mechanical properties of multivoltine and bivoltine silk.
Project Period :1990-1992
Objectives :To find out the relationship between the filament length, denier, tenacity and elongation (%) with the degree of orientation and crystallinity along the length of the cocoons filament within and between cocoons.
Results/Recommendations :The cocoon filaments become finer from outer to inner most layers as confirmed by the earlier studies, while there was an increase in tenacity from outer most to innermost layers of cocoons as a general case in all the replications.
Source of Information :Annual Report: 1990-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative assessment of strength of silk fabrics woven on handloom and power loom and comparative assessment of performance of two strength testing instruments.
Project Period :1990-1991
Objectives : To study the strength of silk fabrics woven on handloom and powerloom using instron and fabric strength tester.
Results/Recommendations : From the results it was observed that the F- calculated along weft way on fabric tensile strength tester showed significant difference between two fabrics. Also F- calculated along warp way of power loom fabric showed some variation significant at 5% level.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative study on properties of grey and degummed silk fabrics.
Project Period :1990-1991
Objectives : To compare the quality characteristics of grey fabric with partial and fully degummed silk fabrics.
Results/Recommendations : Thread density both warp way and weft way increased due to degumming thickness and fabric wt/sq mt decreased due to degumming abrasion resistance and driage co-efficient showed decreasing trend due to degumming.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Studies on finishing of silk.
Project Period :1990-1993
Objectives :
· To study the different methods of finishing of silk employed in the silk industry.
· To identify the problems in terms of substantative quality and value loss.
· To evolve appropriate recipe for finishing of silk.
Results/Recommendations : It was felt that a sample treated with a combination of Finolite DMH (20g/l) and Finolite HVS (120g/l) gave improved crease recovery angle when compared to untreated and treated with other combinations of resins, load and elongation (%) showed no significant difference between untreated and treated with Finolite DMH (20g/l) and Finolite HVS (20g/l).
It was observed that the crease recovery decreased slowly with washing cycles whereas there was no change in crease recovery properties with dry cleaning method (treatment).
Source of Information :Annual Report: 1992-93
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on different methods of assessing moisture regain of raw silk.
Project Period :1990-1991
Objectives : To assess the suitability of various techniques for determining moisture regain of raw silk.
Results/Recommendations :There is trend between the relative humidity and moisture regain in both the methods of assessment. The co-efficient of determination between Relative humidity and moisture regain in case of infrared moisture balance was observed to the 69.2(%) and in case of conditioning oven to be 84.8 (%).
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Quality assessment of silk using electronic equipment.
Project Period :1990-1991
Objectives :
· To study the correlation between eveness, neatness and cleanness valued obtained on Uster eveness tester I.S. model and Seri plane.
· To study the utility of auto sorter for size test in the background of its quickness and accuracy.
Results/Recommendations :It was observed that there exists a trend between the two readings in case of eveness and cleanness whereas neatness showed poor correlation. The co-efficient of determination was found to be as follows.
· Between Uster evenness and seriplane evenness – 31.5%
· Between Uster cleanness and seriplane evenness - 18.0%
· Between Uster neatness and serplane neatness - 1.5%
Source of Information :Annual Report: 1990-91
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By-Product Utilization
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming and spinning performances by bivoltine and multivoltine pierced cocoons, multivoltine urinated, half reeled cocoons, multivoltine floss and Scotland cocoons.
Project Period :1983-1984
Objectives : To study the degumming and degumming performances of different cocoons.
Results/Recommendations : Degumming loss percentage was lowest in Scotland cocoons and lower in bivoltine cocoons as compared to multivoltine. However multivoltine floss waste showed maximum degumming loss percentage. Spinning performance was better in bivoltine cocoons as compared to multivoltine, whereas spinning performance was poor in the case of Scotland cocoons. It is clear that like in reeling, the performance of bivoltine cocoons better in spinning also as compared to Multivoltine cocoons.
Source of Information :Annual Report: 1983-84
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Degumming and Spinning performance of pelade on CSTRI improved pedal spinning wheel.
Project Period :1984-1985
Objectives : To know whether degummed pelade could be spun on CSTRI improved spinning wheel.
Results/Recommendations : Results indicate that spinning of pelade on pedal spinning wheel was not economical as overall production rate was very poor.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on degumming loss of raw silk, cooked and reelers waste, pelade obtained from charaka reeling as well as auto reeling.
Project Period :1984-1985
Objectives : To find out the comparative degumming loss of raw silk and wastes obtained during reeling both charaka and auto reeling.
Results/Recommendations : It is observed that charaka raw silk has shown a lesser degree of degumming loss 22.60% as compared to auto reeled silk (BV-24.80%, and MV-26.0%). It is clear that washing out of sericin would be more in case of charaka reeling on account of vigorous cooking and high temperature reeling.
Source of Information :Annual Report: 1984-85
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on the spinning performances of different varieties of pierced cocoons on hand spinning wheel.
Project Period :1986-1987
Objectives :To produce better quality yarn on hand spinning wheel.
Results/Recommendations :From the results it is revealed that pierced cocoons of eri and mulberry can be successfully spun on CSTRI, spinning wheel. The yarn may be used for furnishing as well as dress material.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Spinning of mulberry and non-mulberry silk wastes and their blends on Ambar charaka spinning system.
Project Period :1986-1992
Objectives : To study the quality of yarn produced from different varieties of mulberry and non-mulberry silk wastes and their blends on Ambar charaka.
Results/Recommendations : The yarn spun with mulberry silk waste has more neps and the resultant count was very coarse (8S English count). The yarn produced from Tasar floss was more uniform and the resultant count was 18S. The yarn spun from weaver's hard waste has fancy appearance and the resultant count was very coarse (9S English count).
It was observed that yarn spun out of basin refuse and malda silk waste was of coarses in count and of inferior quality in terms of uniformity and strength when compared to yarn spun out of Ek-Dadi, Do-Kadi charaka silk waste and filature (cottage basin) waste.
It has been observed that the yarns spun from Eri cocoons were more uniform when compared to yarns produced out of mulberry silk waste. Among the mulberry silk waste, the yarn spun from filature waste was of superior quality in terms of uniformity and strength.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Degumming of cookers and reelers waste.
Project Period :1988-1989
Objectives :To find out an optimum loss of sericin by soap and soda method
Results/Recommendations : From the results, the optimum level of degumming loss was found to be 33.8% with 3.5 g/l soap and 1.0 g/l soda ash at boil for one hour followed by washing at boil for 15-20 minutes.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on spinning performance of different varieties of cocoon waste on CSTRI pedal spinning wheel.
Project Period :1991-1992
Objectives : To study the spinning performance and quality of yarn produced from different varieties of cocoon wastes on CSTRI pedal spinning wheel.
Results/Recommendations : Based on the studies higher degumming loss (%) and lower yarn yield (%) for multivoltine pierced cocoons when compared to that of bivoltine pierced cocoons is observed.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on Dupion silk reeling.
Project Period :1991-1992
Objectives :
· To improve the quality and productivity of dupion silk using double and defective cocoons.
· To fabricate suitable reeling device for the production of quality dupion raw silk.
Results/Recommendations : 100 (%) double cocoons gave the lowest renditta and the renditta increased as the percentage of mixing of defective cocoons with double cocoons increased. 100(%) defective cocoons reeled to produce dupion gave highest renditta.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Fabrication of mechanical brushing unit.
Personnel :Lakshmipathaiah BN, Sangappa N Shillin, Subhas V Naik
Project Period :1999-2000
Objectives : To develop a mechanical brushing unit to reduce brushing waste and achieve effective and picking.
Results/Recommendations : The mechanical brushing unit was developed which can be fixed to the multi-end reeling basin. The brushing waste is reduced significantly in case of mechanical brushing. The efficiency of mechanical brushing was better. 30 numbers of mechanical brushing unit have been fabricated and are being used for popularization in the field.
Source of Information :Annual Report: 1999-2000
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of dupion silk reeling technology for producing superior grade dupion raw silk (ST RLG 006)
Personnel : Somashekar TH, Lakshmipathaiah BN, Mahesh KN
Project Period :2000-2001
Objectives :
· Design and development of dupion silk reeling machine.
· Standardization of reeling process parameters for production of quality silk.
· Standardization of re-reeling parameters for production of dupion silk.
Results/Recommendations :The silk samples collected during the survey were tested adopting standard testing method. The study has enabled to identify the following problems.
· Winding performance of the dupion silk was found to be very poor because of the presence of large number of gum spots, abnormal thin places, unknotted ends and absence of skein lacing in the skeins during reeling.
· Cleanness defects were extremely high because of improper cooking and reeling technology.
Source of Information :Annual Report: 2000-01
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of technology for effective utilization of silkworm pupae - A byproduct of silk industry with special reference to pupae oil.
Personnel :Basavaraje C Herakal, Damodhara Rao PM
Project Period :2000-2001
Objectives :To develop a package for collection, drying and preservation of pupae for better realization of the product value, to recover silkworm pupae oil and assess the quality and its appropriate application.
Source of Information :Annual Report: 2000-01
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Project for strengthening extension system for bivoltine sericulture in India Assisted by JICA.
Personnel : Somashekar TH, Subrata Roy, Subhas V Naik
Project Period :2002-2003
Objectives :To strengthen the extension system of bivoltine sericulture in the country for effective transfer and adoption of the technology.
Results/Recommendations : In continuation with the 14 adopted multiend reeling filatures, three new multiend filatures, established under the 9th plan scheme have been adopted for transfer of technology and all the filatures wanted to reel bivoltine cocoon. Since the workers selected are totally new to the reeling activity, detailed training and technical guidance was provided to these filatures on bivoltine silk reeling technology. Presently all these filatures are reeling bivoltine cocoons effectively adopting bivoltine silk reeling technology package.
Source of Information :Annual Report: 2002-03
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Non-mulberry
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on reeling of non-mulberry silk.
Project Period :1991-1992
Objectives :To study the reeling performance towards optimizing the process parameters for reeling of tasar cocoons.
Results/Recommendations :It was observed that 2.5 g/l Biopril-50 treatment gave better performance with regard to easy unwinding of filaments and more production.
Source of Information :Annual Report: 1991-92
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title : Muga silk Reeling.
Project Period :1985-1986
Objectives : To increase the production rate with maintaining quality of raw silk the reeling studies were taken on cottage basin.
Results/Recommendations : The average production /day of 8hours working was 132.4gms which is highly satisfactory as compared to that on Bhir, which hardly gives about 80gms/day. Recovery of silk is also satisfactory with the cooking process giving about 0.208 gms/cocoon i.e. 4803 numbers of cocoons would be required to produce 1kg yarn.
Source of Information :Annual Report: 1985-86
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Projects with incomplete/partial information
Silk Reeling
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Influence of reeling bath temperature on the quality of silk.
Project Period :1988-1989
Objectives :To study the impact of the reeling bath temperature on the reeling performance and quality of silk reeled.
Source of Information :Annual Report: 1988-89
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Designing and Fabrication of warping machine for the power loom sector- an intermediatory technology.
Personnel :Diwakar Y Bhat, Vasumathi BV, Somashekar TH
Project Period :2002-2003
Source of Information :Annual Report: 2002-03
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Production of cover silk yarn using man made filament/natural fibres, yarns in the core.
Personnel :Subhas V Naik, Vasumathi BV, Subrata Roy
Project Period :2004
Objectives :To design and develop the cover silk yarn reeling machine.
Source of Information :Annual Report: 2004-05
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Utilization of inferior quality cocoons as raw material for the production of lustrous silk tow.
Personnel :Hariraj G, Kiran B Malali, Subrata Roy
Project Period :2004
Objectives :To design and develop silk tow producing machine.
Source of Information :Annual Report: 2004-05
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Chemical Processing
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Study on the effect of potassium hydroxide on silk.
Project Period :1986-1987
Objectives : To see the effect of potassium hydroxide on different types of silk.
Source of Information :Annual Report: 1986-87
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on the standardization of dyeing method of mulberry silk
Project Period :1987-1988
Objectives :To standardize the dyeing process for mulberry silk with different classes of dyes and also to improve the fastness properties of the dyed material.
Source of Information :Annual Report: 1987-88
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Effect of different solvent system on quantitative extraction of Aryl amines from dyed silk substrate.
Personnel : Joseph MA, Radhalakshmi YC, Ambika PK.
Project Period :2001-2002
Source of Information :Annual Report: 2001-02
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on quantitative extraction of Banned Aryl amines from dyed silk materials by substrate dissolution.
Personnel : Joseph MA, Radhalakshmi YC, Ambika PK
Project Period :2001-2002
Source of Information :Annual Report: 2001-02
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Studies on the detection limits of GC-MS, HPTCL and HPLC for banned Aryl amines and comparison of quantification by HPLC & HPTLC.
Personnel : Radhalakshmi YC, Ambika PK, Joseph MA
Project Period :2004
Source of Information :Annual Report: 2004-05
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Silk Throwing and Weaving
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Optimization of spindle gauge, flyer gauge and spindle speed in twisting.
Personnel :Shankar Kotrannavar, Vasumathi BV, Subrata Roy
Project Period :2002
Results/Recommendations :Under progress
Source of Information :Annual Report: 2002-03
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Standardization of weaving parameters for CSTRI reeling cum twisting machine reeled tasar yarn.
Personnel :Vasumathi BV, Joseph MA, Nivedita Rao.
Project Period :2003-2004
Source of Information :Annual Report: 2003-04
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Study of geometry of silk weft knits.
Personnel :Jameela Khatoon BV, Vasumathi, Somashekar TH.
Project Period :2003
Source of Information :Annual Report: 2003-04
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Silk Testing
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Comparative study of multivoltine and bivoltine silk fabrics.
Project Period :1990-1991
Objectives : To compare the quality characteristics of bivoltine and multivoltine silk fabrics.
Source of Information :Annual Report: 1990-91
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Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Optimization of silk fabric weight in relation to its end use application.
Personnel : Vasumathi BV, Jameela Khatoon, Shankar Kotrannavar
Project Period :2002-2004
Source of Information :Annual Report: 2002-03
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Non Mulberry
Project No.:CST
Organization :Central Silk Technological Research Institute, Bangalore.
Project Title :Development of tasar reeling technology package to produce superior quality tasar silk.
Personnel :Kariappa, Subrata Roy, Moon MA,
Project Period :2004
Objectives :To develop of tasar reeling technology package to produce superior quality tasar silk.
Results/Recommendations :Under progress
Source of Information :Annual Report: 2004-05
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Tasar Host Plants
Project No.:CTR1
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Chemical analysis of leaves of tasar food plants/foliar constituents of the food plants of tasar silkworm Antheraea mylitta D.
Project Period :1966-69
Objectives :
· To evaluate the nutritional requirement of plants.
· To analyze the foliar constituents of six food plants.
Results/Recommendations :It has been observed that the food plants are at variation from one another for all the constituents. Zizyphus mauritiana has the highest percentage of crude protein (15.37%), followed by Engenia jambolana (13.01%). This constituent is found in higher percentage in mature leaf followed by medium and tender.
Source of Information :Annual Report: 1968-69
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Project No.:CTR2
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Vegetative propagation of different food plants.
Project Period :1966-68
Objectives :To propagate the main food plants vegetatively.
Results/Recommendations :The data indicated that though initial sprouting is therein T. arjuna and S. robusta, the percentage of survival is nil. Examination of the cuttings revealed that though initial sprouting was there but there was neither callus nor root formation observed.
Source of Information :Annual Report: 1967-68
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Project No.:CTR3
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of different qualities of Sal leaves on the rearing of silkworms.
Project Period :1967-68
Objectives :To study the optimum conditions in which Sal could be utilized for rearing.
Results/Recommendations :Tender quality of Sal leaves allow better growth for the worms and the effective rate of rearing constantly superior over mature or unpruned trees. The cocoon weight and silk ratio are also equally good and is at par with other food plants of tasar silkworm.
Mortality during first season is comparatively more than 2nd.
Source of Information :Annual Report: 1969-70
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Project No.:CTR4
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Air layering of Terminalia arjuna.
Project Period :1968-69
Objectives :
Results/Recommendations :From the data, it can be said that the age of the rooted layers on the mother plants is of much significance in regard to the survival percentage of the transplanted layers. Both the lots transplanted after 20 and 30 days interval are showing good results.
Source of Information :Annual Report: 1969-70
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Project No.:CTR5
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on pruning of primary and secondary food plants.
Project Period :1968-1970
Objectives :Pruning of primary and secondary food plants to synchronise leaf sprouting and maturity period with that of the experimental rearings.
Results/Recommendations :The sprouting and leaf maturity periods vary according the seasonal temperatures. The study has confirmed that plants pruned during February and March produced maximum number of new shoots which lead to increased leaf yield. It was observed that leaf size in S. robusta and S. parviflora pruned during February and March was bigger.
Source of Information :Annual Report: 1969-70
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Project No.:CTR6
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Vegetative propagation of primary and secondary food plants through cuttings.
Project Period :1969-70
Objectives :To study the rooting behaviour of the cuttings of primary and secondary food plants during different months of the year.
Results/Recommendations :It was observed that although cuttings of treated/control, in T. arjuna did not sprout but they remained green for about a month. However, the cutting planted during the moth of July, showed sprouting in Terminalia tomentosa and T. arjuna, while the cutting of Shorea robusta once again failed to sprout. The sprouted cuttings were examined for their roots and it was found that there was no root formation. The sprouting was perhaps due to the stored food in the cuttings, consumed during the period. However, the false sprouted cuttings of T. arjuna and T. tomentosa dried after 30 days of planting. This confirms that even hormone treatment has not resulted in rooting in these food plants.
Source of Information :Annual Report: 1969-70
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Project No.:CTR7
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of interchange of food plants.
Personnel :Ahsan MM, Griyaghey VP
Project Period :1969-1974
Objectives :To study the effect of change of food plants in the 5th instar on larval mortality and cocoon crop production.
Results/Recommendations :
· First season is more favourable to rear Antheraea mylitta worm’s food plants other than Asan with irrespective of season. In the second season the best results has been obtained from Sal and Asan treatment. The second and third good treatments are Asan to Kumbi and San to Sal. The rest have given high mortality.
· The performance of Sal to Asan is quite encouraging since this opens the possibility of rearing on Sal safely upto 4th instar followed by Asan during 5th instar.
Source of Information :Annual Report:1972-73
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Project No.:CTR8
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on rearing technique of tasar silkworms Antheraea mylitta D-Comparative indoor rearing on Sal, Asan and Arjun leaves followed by outdoor rearing on Asan.
Personnel :Jolly MS, Khanna PR, Nehru CR
Project Period :1975-1977
Objectives :To work out the feasibility of utilizing Sal leaves for indoor rearing.
Results/Recommendations :The results reveal no marked differences between the treatments for different characters under observation, thereby suggesting the use of any of the tested food plant during indoor rearing Sal leaves, due to better palatability and turgidity, keeps the larvae more healthy and results in slightly better performance in respect of survival and yield. The other commercial characters like cocoon weight, shell weight, shell ratio did not show significant differences between treatments. The food consumption and the feeding behaviour on Sal was also observed to be better as compared to Asan and Arjun. The present finding is of utility as this may help in saving the scanty Asan plantation for use during indoor rearing. The same however, can be utilized for the outdoor rearing of the larvae.
Source of Information :Annual Report :1976-77
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Project No.:CTR9
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of dietary components in the feeding behaviour of Antheraea mylitta D-Effect of plant stimulants on the feeding behaviour of Antheraea mylitta.
Personnel :Agarwal SC, Jolly MS, Banerjee ND
Project Period :1975-1977
Objectives :To find out the effect of plant stimulants on the feeding behaviour of Antheraea mylitta.
Results/Recommendations :In set 1 it is observed that newly hatched worms have the following order of performance in the plant selection.
Sal > Asan > Arjun > Kumbhi > Sidha > Jamun > Ber. However, in set 2 where twigs of all food plants were tied together the results were altogether different. Arjun shows the first order of preference followed by Asan > Kumbhi > Sal > Sidha > Ber > Jamun. No response was however obtained in set 3. A few number of worms moved to other direction where light intensity was more.
As regards the feeding response of chemical stimulants present in plants, it is observed that chloroform and methanol extracts show the same order of preference as obtained in set 1. However, petroleum ether and ether extracts indicate different results. The study suggests that the selection of Sal, Asan and Arjun food plants by Antheraea mylitta larvae appears to be due to the presence of some chemical stimulants. The study further reveals that those stimulants are perhaps present in chloroform and methanol extracts.
Source of Information :Annual Report :1976-77
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Project No.:CTR10
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the insect population visiting primary tasar food plants-Studies on seasonal incidence of insect population on Terminalia arjuna and Terminalia tomentosa.
Personnel :Das PK, Sharan SK, Singh RN, Sengupta K
Project Period :1981-86
Objectives :To study the distribution pattern and intensity cycle of insect species visiting primary tasar food plants.
Results/Recommendations :
· Maximum population of insect was recorded in July. Decrease in the population during summer from May-June. Peak period from July, August (Coleopteran insect) and lepidopteran insects (April-May) whereas Hemipteran insects was maximum in Nov-Dec.
· The impact of extremes of weather parameter appeared to be more pronounced against different pests of primary tasar food chain.
Source of Information :Annual Report:1985-86
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Project No.:CTR11
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Observation on the extent of damage caused by Anomela blanchardi to tasar food plants.
Personnel :Choudhuri CC, Singh RN
Project Period :1984-85
Objectives :To determine the extent of damage caused by the beetle Anomela blanchardi.
Results/Recommendations :
· In Terminalia arjuna infestation varied from 5.32-42.27% during the months of April to August, whereas in Terminalia tomentosa infestation varied from third week of May to last weak of August. Beetle consumes 3.77-8.93% in Terminalia arjuna and 2.83-9.15% in Terminalia tomentosa.
· Anomela blanchardi commonly known as cock chasers are destructive to primary tasar food plants both in their adult and larval stages.
Source of Information :Annual Report:1984-85
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Project No.:CTR12
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Soil analysis of field laboratory.
Personnel :Sinha USP, Sinha AK, Sengupta K
Project Period :1985-86
Objectives : To analyse soil samples of field laboratory.
Results/Recommendations : Soil samples from 10 plots i.e., plot No.11 to 20 of the filed laboratory, Nagri and Ranchi were collected and analysed for constituents, pH, available nitrogen, potash, phosphorus and organic carbon.
· Soil of the plot No.11 to 19 is medium in respect to available nitrogen and organic carbon. Soil of plot No.20 is poor in respect of available nitrogen and organic carbon.
· Nitrogen fertilizer should be added to all the plots. All the plots are medium in respect of potash and phosphorus. Hence muriate of potash and superphosphate should be added to all soil.
Source of Information :Annual Report:1985-86
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Project No.:CTR
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the response of foliar spray of urea on growth, yield and rearing performance of Antheraea mylitta and Terminalia arjuna.
Personnel :Sengupta AK, Singh GS, Singh SP, Sinha MK, Jayaswal J, Sengupta K
Project Period :1985-88
Objectives :To study the effect of foliar spray of urea on silkworm rearing and commercial characters.
Results/Recommendations :
· Significant increase in the leaf yield at 0.1% level in the treatment where 1.5% urea was sprayed at an interval of 15 days each as against the control. In this case 16781.8 kg of leaf were harvested wherein the corresponding figure for the control was found to be 13125.07 kg and 5% increase in silk ratio.
· For foliar application the urea requirement is very less and leaf tissue quickly absorb the nitrogen and convert it into protein, improving thereby the quality of leaf.
Source of Information :Annual Report:1987-88
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Project No.:CTR13
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Quantitative analysis of Terminalia arjuna leaves during different rearing season.
Personnel :Sinha AK, Singh USP, Brahmachari BN
Project Period :1987-88
Objectives :To analyse the moisture content, total nitrogen, total minerals, carbohydrates and crude fibres contents of the leaves.
Results/Recommendations :
· Moisture content of the leaves reaches its peak (70.34%) during 2nd rearing season. Total mineral content in 3rd rearing season was high (10.20%) in comparison with first (7.82%) and 2nd rearing season (7.3%), total nitrogen between 2-2.38%.
· Though significant differences were observed in case of moisture, nitrogen, mineral and crude fibre contents of leaf during three seasons, yet not significant difference was observed as far as the corresponding values of carbohydrate contents in the leaf is concerned.
Source of Information :Annual Report:1987-88
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Project No.:CTR14
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on floral biology of Terminalia tomentosa.
Personnel :Srivastava PK, Singh KN, Sengupta K, Sinha SS
Project Period :1987-88
Objectives :To study the floral biology of Terminalia tomentosa.
Results/Recommendations :Pollination is entomophilous, anther dehiscence occurs at 12 am to 2 pm in dry and 2 to 3 pm during humid and cold weathers. Stigmatic receptivity starts one hours after anther dehiscence.
Source of Information :Annual Report:1987-88
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Project No.:CTR15
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Determination of optimum pH required for the growth and yield of leaves of Terminalia arjuna.
Project Period :1987-88
Objectives :To determine the optimum pH for proper growth of Terminalia arjuna.
Results/Recommendations :
· Acidic soil with pH 5 has been selected for the study. Requisite quantity of lime was added to different treatment blocks to raise the pH of the soil from 5.25-7.00 as per the experimental layout. Time to time pH was recorded. After attainment of optimum pH Terminalia was planted. Change of pH has no effect on leaf yield.
· The data obtained did not show any trend in any of the characters considered to measure the extent of growth of leaf yield in these cases.
Source of Information :Annual Report:1987-88
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Project No.:CTR16
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Comparative studies of growth and yield of leaves of different varieties of mulberry under different system of planting.
Personnel :Prasad DN, Md. Isa, Bania HR, Srivastava PP, Khare R, Shova Beck, Priya Ranjan
Project Period :1987-89
Objectives :To find out a suitable mulberry variety with proper spacing for the utilization.
Results/Recommendations :
· Among the various spacings tried the spacing of 2’ x 1’ was found to be better in comparison to other spacings for all varieties of mulberry. Among the 5 mulberry varieties tried under the climatic conditions of Chhotanagpur area, the performance of S1 variety was significantly better than other treatments both under irrigated and rainfed conditions the plantation raised under irrigated condition had edge over the plantation raised under rainfed conditions.
Source of Information :Annual Report:1988-89
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Project No.:CTR17
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the effect of pruning at different period on leaf yield and cocoon quality.
Personnel :Choudhuri CC, Choudhury AB, Sengupta K, Sinha SS
Project Period :1987-91
Objectives :To find out correlation between availability of quality leaves due to periodical pruning and quality of cocoons produced thereof.
Results/Recommendations :A perusal of the data indicated that significant increase (P<0.05-P<0.001) in the ERR percentage on pruned plants was observed in each treatment from both the crops (Except in crop I pruned during May) than that of control. However, March pruning gave by large better results in both the crops among the treatments in respect of ERR%, shell weight and SR % with a few exceptions. The results confirmed the findings of previous year that the foliage of March pruned plants are superior which is reflected in cocoon yield and quality.
Source of Information :Annual Report :1990-91
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Project No.:CTR18
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Nutritional studies-Studies on the foliar spray of leaf extract.
Personnel :Choudhuri CC, Choudhury AB, Sengupta K, Sinha SS
Project Period :1987-91
Objectives :To improve traits of tasar silkworm by supplementing the food through nutrients.
Results/Recommendations :It is revealed from the data that ERR (43%) was slightly higher in treatment than that of control (39.20%) though the result is not statistically significant. No marked changes were observed in larval growth and cocoon characters.
Source of Information :Annual Report :1990-91
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Project No.:CTR19
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the soil plant relationship through soil analysis of tasar producing areas for pH available nitrogen, phosphorus, organic carbon and water holding capacity-Effect of different doses of lime on the pH of the soil and growth of Terminalia arjuna plants.
Personnel : Sinha USP, Sinha AK, Prasad DN
Project Period :1987-88
Objectives :
Results/Recommendations :It is evident from the data that pH of all the plots have become acidic and have shown change during each of the observations pH has not become stable even at the end of sixth observation. The highest pH value has been obtained in plot T8 treated with 10 ton lime/ha. All the plots have been planted with Terminalia arjuna.
Source of Information :Annual Report :1987-88
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Project No.:CTR20
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Study on the nutritional value of leaves-Quantitative analysis of Terminalia arjuna, Terminalia tomentosa and Shorea robusta leaves during two rearing seasons.
Personnel :Sinha AK, Sinha USP, Srivastava PP, Shivaraju K
Project Period :1988-1990
Objectives : Analysis of moisture, total nitrogen, total minerals and crude fibre contents of the leaves.
Results/Recommendations :Terminalia tomentosa had a significantly higher moisture content in comparison to the two other food plants during first crop. During 2nd crop, Terminalia arjuna and Terminalia tomentosa were at par with each other but the moisture of these two primary food plants were significantly higher in comparison to Shorea robusta.
In case of nitrogen while Shorea robusta had significantly higher nitrogen content, the nitrogen percentage in it was significantly lower in 2nd crop in comparison to Terminalia tomentosa and Terminalia arjuna.
During both the rearing seasons, Shorea robusta had significantly lower mineral content as compared to the two other food plants. Further, all the food plants differ significantly in mineral content from each other.
Crude fibre content was significantly higher during both the crop in case of Shorea robusta. However, between Terminalia tomentosa and Terminalia arjuna, the latter has lower crude fibre content.
Among the different leaf numbers from apex, while moisture and nitrogen content was found gradually decrease, total minerals and crude fibre content was found to increase gradually.
Source of Information :Annual Report :1989-90
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Project No.:CTR21
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Study on nutritional status of mulberry leaves under agro climatic conditions of Ranchi districts-Quantitative analysis of mulberry leaves of improved varieties K2 and S1 under rainfed conditions in Ranchi district.
Personnel :Sinha AK, Sinha USP, Srivastava PP, Shivaraju K
Project Period : 1988-90
Objectives :Analysis of mulberry leaves (K2 and S1 for moisture, total nitrogen, total mineral and crude fibre contents.
Results/Recommendations :The analysis of leaves of the two varieties viz., K2 and S1 has indicated that moisture content was higher during July in comparison to October in both K2 and S1. Further, S1 showed significantly higher value in case of nitrogen content in comparison to K2 during July while both remained at par during October. Total mineral content was comparatively higher during October in comparison to July. However, no significant difference in the mineral content was observed during July. In case of crude fibre, K2 variety had an edge over S1 and an increasing trend was observed in case of crude fibre and mineral content from third to twelfth leaf.
Source of Information :Annual Report :1989-90
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Project No.:CTR22
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Genetic improvement of primary food plants.
Personnel :Joshi MC, Shova Beck, Khare R
Project Period :1996-97
Objectives :Exploration and evaluation of existing germplasm of Terminalia species.
Evaluation of leaf quality through bioassay of existing germplasm
Results/Recommendations :
· Average value of leaf yield/plant, height, number of branches, number of leaves per plant indicates that genotypes O2, S1, N3, PBG19 are superior to others.
· Leaf yield – PBG 19 (1.024)>JC3 (0.900)>JR6 (0.847)>RL10(0.72)
· Plant height-RL10 (195.33)>PBG19 (189.13)>JR6 (172.8)>JC3 (162.6),
· Leaf length – RB3 (18.87)>RB5 (17.86)>PBG19 (17.67)>RL10(17.00).
· Based on the average value of seven crops it has been observed that genotypes D>DS1>N5>DS2>B2 are more promising in order of comparative superiority.
· Clonal propagation of selected genotypes through air layering was carried out in order to raise clonal orchards, so far orchards of 22 genotypes have been raised and are being maintained. Since genotypes D, DS1, N5, DS2 and B2 are superior they may be utilized for multiplication.
Source of Information :Annual Report:1996-97
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Project No.:CTR23
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on food plant pests and disease.
Personnel :Rajesh Khare
Project Period :1996-97
Objectives :
· Studies on epidemiology, etiology and control measures for primary tasar food plant disease.
· Studies on black nodal girdling.
Results/Recommendations :
· As already reported the black nodal girdling disease of Terminalia arjuna is caused by Uredo species. Four fungicides viz., Blitox, Capton, Bavistin, Zineb were applied in four concentrations 0.05%, 0.10%, 0.15% and 0.20%.
· It was observed that three sprays of 0.02% concentration of Bavistin is most effective in checking the disease upto 56.6%.
Source of Information :Annual Report:1996-97
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Project No.:CTR24
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Experimental morphogenesis of some tasar food plants Terminalia arjuna and Terminalia tomentosa and S. robusta.
Personnel :Tirkey J, Nag KK
Project Period :1997-2003
Objectives :To Exploit the techniques of tissue culture in tree species.
Results/Recommendations :
· In in vitro studies, variation and regeneration potential was observed from tissues collected from different parts of tasar species. Variation in regeneration due to change of ratio of different chemical constituents of culture medium, abiotic factor, season and the source of explant was observed to be very effective. Genetic diffuse was also found in respect of callus growth, somatic embryogenesis, plant regeneration and their differentiation.
· In the field of tissue culture research on these plants is necessary to explore more potentialities for differentiation of the root to increase the maximum percentage of shoot bud formation and to estimate the individual cell line culture and protoplast culture by using recent technique.
Source of Information :Ph.D thesis, Ranchi University 2003
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Project No.:CTR25
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Clonal propagation of primary tasar food plants Arjun and Asan.
Personnel :Sinha PS, Beck S, Hoshi MC, Gangopadhyay A, Sinha AK, Singh BRRP
Project Period :1997-2002
Objectives :
· Effect of type of cuttings on rooting behaviour in Terminalia arjuna and Terminalia tomentosa.
· Induction of juvenility through growth regulators.
· Effect of auxin and other chemicals.
· Studies on growth behaviour.
Results/Recommendations :
· Leaf node cutting showed oversuperiority in performance when compared with that of juvenile cuttings DPP induced rooting to 46.9-35.7% as compared to control. Cuttings of plant pruned at 30 cm height was tried with GA-3 treatment was found higher than in control. It was suggested that April-September is quite conducive for rooting, 80% rooting was observed in April-June and July-September. Sapling grows faster than seedlings extension growth and leaf biomass production was found to be 21.22% and 64.8% higher.
· Leaf node cutting shows superiority than juvenile
· Alcohol wash, double phase planting, pruning at 30 to 60 cm and auxin could not induce rooting in semi-hard and hardwood cuttings.
· Survival was found higher in saplings (93.3%) than seedling (84.4%)
Source of Information :Annual Report:2001-2002
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Project No.:CTR26
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Response of tasar food plants to micronutrients.
Personnel :Chaudhary SK
Project Period :1997-2002
Objectives :Six micronutrients were applied as foliar feed on Terminalia arjuna leaves under 6’ x 6’ spacing.
Results/Recommendations :Increase in leaf yield over control was recorded from 8.93 to 49.44%. Highest cocoon weight, shell weight and absolute silk were recorded in T4 treatment in first crop 2002 whereas highest cocoon weight and shell weight was recorded in T17 and highest absolute silk in T4 treatment in 2nd crop.
Source of Information :Annual Report:2002-03
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Project No.:CTR27
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :In vitro propagation and selection of variabilities in tasar food plants.
Personnel :Tirkey J
Project Period :1998-2003
Objectives :
· Micropropagation of tasar food plants through shoot proliferation.
· Studies on regeneration of callus of Terminalia arjuna and Terminalia tomentosa.
Results/Recommendations :
· The induction of callus originally derived from the leaf explants in the presence of 2-4D (3.0-5.0 mg/l) was very effective in combination with IAA and NAA (2.0-3.0 mg/l) and CW 20%. In this treatment shoot buds appeared at very low percentage. Initiation of root directly from cut end was observed and differentiation of root callus with IAA, IBA, NAA (1.0-2.5 mg/l)
· Murashige and Skoog’s medium supplemented with auxin and cytokinines i.e., IAA, NAA, IBA, KIN, BAP in the concentration of 1.0-5.0 mg/l give significant results for development of shoot.
Source of Information :Annual Report:2002-03
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Project No.:CTR28
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Development of control measures for major defoliaters Notolopus antiqua, Anomela blanchardi, Trichiona picea and Myllocerus species of primary tasar food plants through neem derivatives.
Personnel :Sharma SP, Ram Kishore, Thangavelu K
Project Period :2001-02
Objectives :Effect of combination of cultural mechanical and neem derivative treatment for controlling major defoliators of primary tasar food plants.
Results/Recommendations :
· Cultural, mechanical and soil applications of neem cake @ 60 kg/acre, foliar application of Azadirachtin @ 6.0 ppm and combination of four method (IPM) were tested under the control. Results revealed that IPM is effective (leaf yield/plant = 4.265 kg, leaf damage 11.25% and average number of grubs/cft = 0.125, as compared to control (leaf yield/plant = 2.467 kg, leaf damage 40% and average number of grubs/cft=1.750) in controlling defoliators.
Formualtion of package for defoliators
· Cultural – Deep ploughing twice after silkworm rearing i.e., Nov-Dec, March–April.
· Mechanical – Collection and destruction of different developmental stages such as eggs, grubs/larvae and adults of coleopteran and Lepidopteran pests during morning and evening, twice a week from the month of May to July
· Neem derivatives – Soil application of neem cake @ 60 kg/acre in two split doses at 15 days interval before onset of monsoon. Foliar application of Azadirachtin after 15 days of neem application.
Source of Information :Annual Report:2001-2002
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Project No.:CTR29
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on bioecology, geographical distribution and extent of crop loss due to string bug Canthcona furcellata W– potential predator of Antheraea mylitta D.
Personnel :Sharma SP
Project Period :2001-2003
Objectives :To study the seasonal variation of Canthecona population in different tasar producing states namely Chattisgarh, Orissa, West Bengal, Maharashtra, Jharkhand and Andhra Pradesh in relation to various abiotic factors such as temperature, relative humidity and rainfall.
Results/Recommendations :
· The average predator population was observed to be on higher side during second crop as (36-77) compared to first crop (14-54) in the tasar producing states. The average temperature, humidity and rainfall ranged between 22-32°C, 62-92% and 33.60-451.22 mm during the season of occurrence of Canthecona population in different regions.
· It was recommended that the release of the parasitoid of C. furcellata in the rearing field of tasar silkworm may affect the predation potential of C. furcellata in the vegetable garden grown in the vicinity of the rearing field. Therefore a decision was taken not to release the parasitoid population in the rearing field for the control of C. furcellata.
Source of Information :Annual Report:2003-04
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Project No.:CTR30
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on organic farming and use of biofertilizer in tasar culture.
Personnel :Ram Kumar
Project Period :2001-2006
Objectives :To boost the soil health and improvement of plant growth and yield through organic farming.
Results/Recommendations :
· Analysed data of fifth year indicated that among different combination of fertilizers and manures, application of vermicompost at 12 MT with 50% of recommended fertilizer per hectare per year (in two splits – T8) evaluated that plant growth and leaf yield significantly in respect of length of branches/plant (184.64 cm), number of leaves/branch (236.03) and leaf yield/plant (9.416 kg) against control (143.69 cm 194.86 and 6.008 kg respectively. This treatment registered a gain of 56.72% over control.
· Application of vermicompost alone is beneficial for growth and development of tasar food plant and increasing the health of the soil.
Source of Information :Annual Report:2005-06
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Project No.:CTR31
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Foliar application of nitrogenous, potassic and phospahatic fertilizers on Terminalia arjuna for quality leaf and cocoon yield.
Personnel :Das S
Project Period :2003-2005
Objectives :To study nitrogenous and phosphatic fertilizers on Terminalia arjuna leaf quality and cocoon characters.
Results/Recommendations :Treatment T5 (urea+1% MOP +1% DAP) recorded highest gain in leaf yield over control in first (30.1%) and second (32.8%) crops. In case of other treatments the gain in leaf yield ranged from 15.46-28.18% in first crop and 11.17-30.28% in second crop. Highest cocoon yield 32 cocoons/dfl in 1st and 36 in 2nd crop compared to 26 and 27 for respective crops in control.
Source of Information :Annual Report:2003-04
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Project No.:CTR32
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the regeneration of Terminalia arjuna and Terminalia tomentosa through tree cuttings.
Personnel :Sinha PS, Ram Kumar, Beck S, Joshi MC, Tirkey J, Sinhdeo SN, Bardaiyar VN, Sinha BRRP, Suryanarayana N.
Project Period :2003-2006
Objectives :To find out the rootability of cutting of Terminalia arjuna and Terminalia tomentosa as influenced by juvenility induction in mother trees through pruning, growth regulators and their combinations.
Results/Recommendations :
Pruning along with foliar spray with growth regulators significantly influenced the rooting in Terminalia arjuna and Terminalia tometosa. Rootabality declined with increasing height of pruning and pruning at 15 cm height gave 87.8% more rooting that the plants pruned at 180 cm in Terminalia arjuna while in Terminalia tomentosa no rooting was observed when pruning was resorted beyond 90 cm.
In Terminalia arjuna rooting with Cytokinine i.e., Kinetin and BAP varied from 52.6-54.3% with GA3 it was marginally lower (49.1%) and Coumarin has been least effective. Interaction of pruning and growth regulators has shown syergestic effect giving 88.3% rooting with Kinetin (500 ppm) and BAP (250 and 500 ppm) and 60 cm height. In Terminalia tomentosa however contrary to Terminalia arjuna has maximum rooting. Interaction of pruning of 60 cm height with Coumarin at 250 ppm indicated 63.5% rooting.
Source of Information : Annual Report: 2005-06
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Tasar Silkworm
Project No.:CTR33
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Survey of Indian Tasar races.
Project Period :1965-67
Objectives :Survey of different tasar crops raised on Shorea robusta (sal), Terminalia tomentosa (Asan) and Terminalia arjuna (Arjun).
Results/Recommendations :The data shows that the nature grown cocoons on sal are significantly superior over the cocoons raised on Terminalia (Asan). It is gratifying to note that exploitation of nature grown sal cocoons for raising commercial crops as recommended by CTRTI.
Source of Information :Annual Report: 1966-67
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Project No.:CTR34
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Maintenance of germplasm bank of Antheraea fauna-Maintenance of CTRS races.
Personnel :Saraswat SB, Kamala Kant, Singh BD, Sen K, Ojha NG, Narasimhanna MN
Project Period :1965-Continue
Objectives :
Results/Recommendations :The data indicated that CTRS Yellow, CTRS Almond and CTRS Blue as superior to Daba by 32.1, 32.9 and 23.6% respectively for hatching CTRS Green was best for fecundity (251), cocoon weight (11.70 g) and shell weight (1.61 g), Next in order of merit was CTRS Yellow which registered 211 fecundity, 76.8% hatching, 1.64 g cocoon weight and 1.58 g shell weight. ERR was highest in this race (42.5%).
Source of Information :Annual Report :1979-80
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Project No.:CTR35
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on inbreeding.
Project Period :1966-1967
Objectives :To exploit hybrid vigour using inbreeding studies with Daba green, CTRS yellow and CTRS blue
Results/Recommendations :
· Out of the lots only lot No.3116, 3131, 3192, 3446, 2894, 3250 from green, 3667, 4078, 3490 and 3857 from yellow and 4143, 4042, 4013, 4053 from blue have been selected for further reproduction.
· Apart from studying the inbreeding trends and effect of selection it is also proposes to list the heterosis index at each generation.
Source of Information :Annual Report:1966-67
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Project No.:CTR36
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on morphology of tasar silkworm.
Project Period :1966-67
Objectives :To study the morphology of different larval stages.
Results/Recommendations :
Developmental behaviour : The rate of development of the silkworm were studied for ponderal, linear and widthwise development.
General Morphology : Apart from the general morphology, the larval morphology was also studied for the following patterns during different stages of larval development i.e., prothoracic hood, dorsal view, lateral view and anal flap
The basic pattern of tubercular hairs has been studied and will be made use for studying the comparative variations in the hair pattern of different indigenous and exotic four species as also the regional races to regroup the indigenous Antheraea fauna for planning systematic breeding programme.
Source of Information :Annual Report:1966-67
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Project No.:CTR37
Organization : Central Tasar Research and Training Institute, Ranchi
Project Title :Pests-Biology and life cycle of tasar bug (Canthecona furcellata).
Project Period :1966-67
Objectives :
· To study the biology and life cycle of Tasar bug (Canthecona farcellata).
Results/Recommendations :
· The male Canthecona bug completes its life cycle in about 39/40 days from egg to adult, while it is 43/44 days for female. The bug pierces the silkworm and sucks its blood. It needs 201 larvae to feed through out the life cycle. The number goes on decreasing, depending upon the size of the larva with the advance age. On an average it may be said that one Canthecona can destroy about 108 worms. This predator is available practically in all the months except during December and January when it hibernates.
· Maggots on hatching enter the body of host after feeding on host body it comes to pupate in soil.
· In Ranchi pest infestation was heavy followed by heavy damage to rearing in 1965 leads to comparatively heavy loss in the year 1966.
Source of Information :Annual Report:1966-67
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Project No.:CTR38
Organization : Central Tasar Research and Training Institute, Ranchi
Project Title :Pests-Biology and life cycle of Tachnid
Project Period :1966-67
Objectives :To study the biology and life cycle of Tachinid fly (Mascisensa grandis)
Results/Recommendations :A single male can fertilize several females. Eggs, which are white in colour, are generally laid very near to the spiracles of the host caterpillar. On an average 10-40 eggs are laid on a single tasar worm. Eggs hatch after 15/16 hrs. The maggots on hatching enter the body of the host and after about 10-12 days feeding in the hosts body it comes out to pupate in the soil. Pupae are oval in shape, about 12 mm in length, undergo diapause for about 15 days during summer. On average the life cycle of an adult lasts for 36-72 days depending upon the season
Source of Information :Annual Report:1966-67
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Project No.:CTR39
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on improvement of rearing technology.
Project Period :1966-68
Objectives :To regularize the density of larval population on host plants to minimize the number of transfers and to see its effects on the effective rate of rearing.
Results/Recommendations :Majority of the products of negative deviations indicates that as the number of worms per bush increases the effective rate of rearing deceases while as the number of worms per bush decreases the effective rate of rearing increases.
The individual X2 values are in perfect agreement between the observed effective rate of rearing (Y) and the expected effective rate of rearing (Ŷ) in almost all the cases.
The positive products of deviations (xy) indicate that as the number of worms/bush increases the disease mortality also increases. The individual values of X2 between observed % of mortality (Y) and regression percentage (Ŷ) are all insignificant and the overall values of X2 also comes as insignificant.
Source of Information :Annual Report: 1967-68
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Project No.:CTR40
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Follicular impression on the egg shell of Antheraea.
Project Period :1966-70
Objectives :To study the follicular imprints left on the egg shell in Antheraea species.
Results/Recommendations :The results reveal that the shape of the main cells in Antheraea roylei is hexagonal with smaller intercellular bodies while A. pernyi is having oval main cells with bigger intercellular bodies. It may be noted that in the hybrid A. roylei x A. pernyi the roylei pattern, which is hexagonal in shape, has not expressed itself while it is more like A. pernyi, oval pattern.
The follicular imprints in the hybrid A. roylei x A. pernyi very much resemble that of A. assamensis which rather suggests that these species might have evolved from each other during evolutionary process. On the other hand, in the hybrid A. pernyi x A. roylei, the follicular patter is rather intermediate. Except that the intercellular bodies of A. roylei very much resemble the size and shape of that of the intercellular bodies in the cross. This suggests the possibility of maternal inheritance for this character. The follicular imprints on the egg shells of the hybrid A. pernyi x A. roylei further suggests that this is an intermediate form between A. assamensis and A. pernyi.
Source of Information :Annual Report: 1969-70
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Project No.:CTR41
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on egg disinfectants.
Project Period :1966-67
Objectives :To study on the comparative efficiency of different egg disinfectants.
Results/Recommendations :The perusal of the data shows that the disinfectants have no detrimental effect on the hatching except in case of cresole. The effective rate of rearing is the highest where formalin was used and next comes dettol.
Source of Information :Annual Report: 1966-67
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Project No.:CTR42
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the scales of the tasar moth.
Project Period :1966-67
Objectives :To study the types of scales in wings to find out the qualitative and quantitative variations in different regional populations.
Results/Recommendations :
· In all the races and species studied, 5 types of scales are identified.
· Scale- ‘A’, ‘B’ and ‘C’ are common in all the races and species.
· Scale ‘A’ are invariably bigger in sizes in moths from grown Shorea cocoons and A. roylei.
· Scale ‘D’ is only present in race Daba.
· Scale ‘E’ are only found in A. sivalika.
· All the scales A to E are bigger in size in hind wings than in fore wings.
Source of Information :Annual Report: 1966-67
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Project No.:CTR43
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Incidence of mortality due to viral and bacterial diseases in different metrological periods.
Project Period :1966-1968
Objectives :To study the incidence of viral and bacterial diseases in relation to the different metrological periods.
Results/Recommendations :Results revealed that incidence due to viral disease decreases with decrease in average, maximum and minimum temperature and RH. On the contrary the frequency of mortality due to bacterial diseases increases than the expected frequency calculated on the basis of hypothesis of independence of mortality incidence with periods.
Results also revealed that mortality due to “sealing of anal lips” is more frequent than expected in period 2nd and 4th whereas in period I and II with relatively high average maximum, minimum temperature and RH. It is much less than expected. “Chain type excreta” on the other hand take greater toll in period I and II than the expected value. The mortality due to “Rectal protrusion” is more in period I and II and less in period 1st and 4th.
Source of Information :Annual Report: 1967-68
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Project No.:CTR44
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Incidence of disease mortality in different Indian tasar races.
Project Period :1966-1968
Objectives :
· To understand the incidence of disease mortality in relation to various races of A. mylitta D.
· To assess the comparative resistance of different Indian tasar races to different seasons.
Results/Recommendations :
· The races are not different in respect of total mortality percentage due to diseases.
· Races are not different when the mean mortality % of each disease is compare separately except Mugia which is showing higher mortality% due to viral disease
· The mean mortality% for all the races collectively is highest in case of viral and low for bacterial diseases.
· In the 2nd season, however, the mean mortality % for all the races collectively is higher for bacterial diseases and lower in case of viral diseases.
Source of Information :Annual Report: 1967-68
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Project No.:CTR45
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Utility of microscopic examination of mother moth in tasar grainage.
Project Period :1967-1968
Objectives :To assess the utility of microscopic examination in the grainage by rearing progenies raised from healthy and infected mother moths.
Results/Recommendations :Perusal of the data revealed that as far as incidence of viral disease is concerned there appears to be no difference between the progenies raised from infected or healthy moths. On the whole it may be concluded that there is no significant influence on the mortality due to disease in the progenies raised from the infected mother.
Source of Information :Annual Report: 1967-68
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Project No.:CTR46
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains based on qualitative characters–Fixation on the basis of larval body colour, cocoon colour and frequency of later al shining spots.
Personnel :Chowdhary AK, Singh BD, Narasimhanna MN
Project Period :1967-80
Objectives :To enrich germplasm bank with foundational stocks for future hybridization programmes.
Results/Recommendations :All the nine combinations showed homozygosity for larval body and cocoon colours. Three lines viz., GM (2:2)y, YM (6:6)y and YMy showed 52 and 100% purity for frequency of larval shining spots.
Source of Information :Annual Report :1979-80
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Project No.:CTR47
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Extraction of sex pheromone.
Project Period :1968-69
Objectives :To isolate sex attractant from the enemies of tasar silkworm.
Results/Recommendations :The leaf feeding nature of the tasar silkworm restained from applying insecticide over the plants. Similarly, the rapidly multiplying behaviour of the pests made all the steps taken to combat it by mechanical means futile. The self designed apparatus which is simple and economical appears to be quite effective. In case of tasar pests also do emit sex pheromones the technique can be very well utilized in combating the same. The technique can be exploited to combat uzifly (Tricholyga bombycis), the notorious parasite of Bombyx mori in Bengal and Assam.
Source of Information :Annual Report: 1968-69
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Project No.:CTR48
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Fixation of new segregants.
Project Period :1968-70
Objectives :To fix new strains with special reference to the larval body colour, larval marking and cocoon colour.
Results/Recommendations :The difference in order of effects was of negligible size. It was rather difficult to say whether the additive gene effect of lines was expressed when the lines used as parents or the grand parents in 3- way hybrids.
It may be seen that the lines which were under selection for about 6 generations are tending to be uniform for the characters under selection. However, it may require some more time to obtain fully uniform lines for the desired characters.
Source of Information :Annual Report:1969-70
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Project No.:CTR49
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the inheritance of cocoon colour.
Project Period :1968-71
Objectives : To understand the inheritance of cocoon colour.
Results/Recommendations :
· The cocoon F1 are all of yellow colour indicating the dominance of yellow colour. F2 has a ratio of 2 yellow :1 grey approximately in one replication and in others in the ratio of 3:1.
· The results of F1 indicate the dominance of yellow colour of cocoons over grey while the results of F2 virtually gives 3:1 ratio. The segregation at F2 reveals that the inheritance pattern for cocoon colour is governed by the set of gene 17 is monogenic. Backcross also reveals the homogenic pattern of inheritance.
Source of Information :Annual Report:1970-71
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Project No.:CTR50
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Maintenance of germplasm bank.
Project Period :1968-1970
Objectives :To maintain the three races namely CTRS Yellow, Blue and Almond in the germplasm bank.
Results/Recommendations :Four races viz., CTRS yellow, CTRS blue, CTRS almond and Daba green continued to be maintained at the stations for use in different experiments.
Source of Information :Annual Report: 1969-70
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Project No.:CTR51
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Efficiency of formalin and sodium hypochlorite as antiviral agents.
Project Period :1969-70
Objectives :To understand the efficiency of different concentration of formalin and sodium hypochlorite with different treatmental durations on surface sterilant of tasar egg for the control of viral disease caused due to egg contamination.
Results/Recommendations :
· The eggs disinfected with formalin has resulted in an overall average mortality of 9.1% as compared to 19.5% mortality in the case of control. Egg disinfected with sodium hypochlorite has resulted in 13.4% over all mortality and in control it is 19.5%.
· It could be said that 10% formalin has been comparatively applied in checking the mortality due to viral disease. Simultaneously 10% formalin has resulted in lower mortality due to bacterial diseases.
Source of Information :Annual Report:1969-70
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Project No.:CTR52
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Morphology of interspecific hybrids of Antheraea mylitta x Antheraea frithii.
Project Period :1969-70
Objectives :To study the morphological characters of the hybrid larva of Antheraea mylitta and Antheraea frithii.
Results/Recommendations :
· Overall growth rate for the linear and widthwise is higher in the hybrid Antheraea frithii and Antheraea mylitta as compared to reciprocal crosses.
· The larva exhibits some characters of both the parents and others of its own. The inheritance pattern should be studied.
Source of Information :Annual Report:1969-70
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Project No.:CTR53
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Morphology of interspecific hybrid Antheraea roylei x Antheraea mylitta.
Project Period :1969-70
Objectives : To study the interspecific hybridization in Antheraea species.
Results/Recommendations :Since the larvae of the cross survived only upto 1st moult, it was reported that the hybrid Antheraea roylei x Antheraea mylitta is expressing hybrid weakness. In the present case where A. roylei of Assam has been used as parent, the larvae survived upto final instar even though the growth was very much retarded.
Source of Information :Annual Report:1969-70
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Project No.:CTR54
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on rearing technique.
Personnel :Jolly MS, Ahsan MM, Giriyaghey VP
Project Period :1969-1975
Objectives :To improve rearing techniques to boost production and make it an economic preposition.
Results/Recommendations :
· Lots reared with and without polythene cover indoor for I and II instars gave significantly superior results as compared to control and other lots. Indoor rearing upto I instar followed by subsequent outdoor rearing gave best yield. Improvement by 22-35% over the control.
· The overall gains however appear to be higher in the first season.
Source of Information :Annual Report:1972-73
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Project No.:CTR55
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Cytological studies on Antheraea sp.-Cytological investigation of interspecific hybrids between Antheraea mylitta and Antheraea frithii.
Personnel :Jolly MS, Sen SK, Sengupta AK
Project Period :1969-1976
Objectives :To produce fertile hybrid of A. mylitta and A. frithii.
Results/Recommendations :The microscopic examinations of the slides revealed 62 univalents in some of the cells in Metaphase I, which is the sum total of the haploid chromosome number of the parental species (A. frithii, n=31 and A. mylitta, n=31). However, in some of the cells a tendency towards pairing was observed.
Source of Information :Annual Report: 1973-74
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Project No.:CTR56
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on liquid secreted by moths of Antheraea mylitta during its emergence.
Project Period :1970-71
Objectives :To study the effect of liquid secreted by the moths of Antheraea mylitta at the time of escaping from the cocoon for the purpose of reeling.
Results/Recommendations :An apparatus designed for collection of liquid secreted used for the studies.
· Batch of 10 cocoons separately was soaked in 1%, 5% and 10% aqueous solution of this liquid for 18 hrs. All the cocoons become soft and was ready for reeling in an appropriate reeling machine.
· The cocoons treated with 10% solution was fully reelable while those treated with 5% solution was partially reelable. The cocoons treated with 1% solution was not reelable.
Source of Information :Annual Report:1970-71
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Project No.:CTR57
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the nature of pigments in food plants, larvae and cocoons of Antheraea mylitta D-Studies on the nature of pigments in different races of tasar silkworm.
Personnel :Agarwal SC, Banerjee ND
Project Period :1971-1975
Objectives :To investigate the chemical nature, metabolism and biogenetics of different body colour in the insect.
Results/Recommendations :
· The fraction 1A seems to be β-Carotene since the R+ value compared in the authentic sample is same.
· The fraction 2A is very close to cholesterol. The imposed spectrum of the fraction show polynuclear aromatic peak at 2950, 1475 and 750 cm, three hydrogen peak at 850, 800 and dimethyl peak at 1370-1380/cm hydroxyl peak at 3400/cm and 1050/cm.
· The result of chromatography showed that galactose (single spot) is present in the integument of green larval silkworm of the Antheraea mylitta.
Source of Information :Annual Report:1972-73
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Project No.:CTR58
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Isolation and identification of sex attractant from female moths of Antheraea mylitta.
Personnel :Agarwal SC
Project Period :1971-1974
Objectives :Isolation of sex attractant from the virgin female moth of Antheraea mylitta.
Results/Recommendations :Fraction 2 and 7 of the pheromone could give positive response to lure the male counterpart of Antheraea mylitta. The fraction 3 and 8 has little effect which the original crude extract did not attract the male moth at all. The fraction 2 which give positive response has the R+ values between 0.8-0.9 in the solvent system n-hexane, ether, acetic acid (90:5:1).
Source of Information :Annual Report:1972-73
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Project No.59
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Inheritance of moth colour in Antheraea mylitta.
Personnel :Jolly MS, Prasad GK, Sahai V, Gaur JP, Sen SK, Benchamin
Project Period :1971-1977
Objectives : To study the moth colour inheritance in Anthraea mylitta crosses of G x G, B x B. Y x Y, Y x B and G x B were experimented.
Results/Recommendations :
· The males are predominantly brown and females grey and yellow.
· Taking overall percentage into consideration the frequencies of normal moth colours in the crosses and natural population are almost as par with each other showing a low magnitude of variability (B♂ - 97.72±2.06%, G♀ - 49.81±2.20% and Y♀ 49.55±1.84.
· The moth colour in Antheraea mylitta is a sex limited factor exhibiting polymorphism only in the case of female.
· The occurrence of grey and yellow males and brown females in negligible percentage is the result of rare genetic condition.
· Higher percentage of rare segregants in the cross combination as compared to natural population. The female polymorphism is governed by scoltch gene mechanism.
Source of Information :Annual Report:1974-76
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Project No.:CTR60
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Isolation and characterization of phytohormones.
Personnel :Agarwal SC, Jolly MS, Sinha AK, Banerjee ND
Project Period :1971-1980
Objectives :In order to terminate the pupal diapause of Antheraea mylitta with the help of phytohormone.
Results/Recommendations :
· The fractions EL, ER, BL and BR thus obtained from each species have been purified by columnar chromatography on silica gel column followed by their layer chromatography.
· Scum purified fractions EL13, EL14, ER13, BL12, BR12, BR13 and four fractions, EL13, ER13, BR13 and BL13 obtained from C. tomentosa used for injection treatment and tropical application respectively. In case of C. capitata four fractions EL13, ER41, ER42 and BR2 were used for injection treatment.
Source of Information :Annual Report:1975-76
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Project No.:CTR61
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Termination of pupal diapause of Antheraea mylitta D through phytohormones.
Personnel :Jolly MS, Ahsan MM, Sinha SP
Project Period :1971-1976
Objectives :To terminate pupal diapause in sericigenous insects (Antheraea pernyi, Antheraea polyphemus, Antheraea mylitta and Hyalophora caeropia) for breaking diapause with the help of plant hormones.
Results/Recommendations :Cyasterone application to the pupae ensures moth emergence in all the treated pupae. Under the circumstances Cyathula capitata a herb found in Western Himalaya contains cyasterone is identified and used in the experiments.
Source of Information :Annual Report :1971-1976
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Project No.:CTR62
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Acclimatisation of the eco-races of Antheraea mylitta.
Personnel :Jolly MS, Saraswat SB, Sen SK, Sharma KK, Ojha NG
Project Period :1971-80
Objectives :To enrich the germplasm bank with maximum number of acclimatised eco-races to usually exploit them for pure line inbreeding and hybridization.
Results/Recommendations :Three eco-races namely, Jadai, Nalia and Sukinda were passed on to germplasm bank after acclimatization on Asan at 7th generation. Nalia was however, reclaimed in view of certain setback in emergence and coupling. This race was brought upto 9th generation.
The results indicate positive trend of improvement and stabilization. Emergence and coupling were 100 and 26% respectively during second season, while the respective figures for fecundity and hatching were 313 and 84.1%. Shell weight (2.11 g) and shell ratio was also quite good. As compared to Daba superiority were reflected in all the characters.
Source of Information :Annual Report :1979-80
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Project No.:CTR63
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains based on qualitative characters-Fixation on the basis of larval body, lateral tubercle and cocoon colours.
Personnel :Choudhury AK, Singh BD, Sen SK, Gaur JP, Tikoo BL
Project Period :1971-80
Objectives :
Results/Recommendations :The results revealed 100% purity for larval body and cocoon colours in all the four lines (YWg, YWy, YLv y, YLv g). One line i.e., YWy, exhibited cent percent homozygosity for tubercle colour. Other three lines showed purity level between 46 and 76% for the same character.
Source of Information :Annual Report :1979-80
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Project No.:CTR64
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on sex attractant of silk moths and tasar pest.
Personnel : Agarwal SC
Project Period :1972-1972
Objectives :To determine the sex attracting potentiality of female moth of Antheraea mylitta for mating.
Results/Recommendations :
· Attracting capacity of female moth of Antheraea mylitta is quite effective in calling their counterpart for mating from a distance of 1000 ft. It has also observed that moths has coupled between 3.00 and 4.00 am. Similar results were obtained in 2nd rearing season.
· Some kind of luring chemical seems to have been emanated by the female moth to attract their counterpart for coupling.
Source of Information :Annual Report:1972-73
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Project No.:CTR65
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Indoor spinning of tasar silkworm (Antheraea mylitta) and its effects on the physical characters of the cocoon.
Personnel :Chowdhary SK, Ghosh SS
Project Period :1972-74
Objectives :To understand the indoor spinning behaviour and its effects on physical indoor reeling behaviour.
Results/Recommendations :
· Spinning in hanging twigs has yielded maximum number of normal cocoons (85%). The silk content is high. Maximum deformities in cocoons was observed in the bamboo trough, cocoon quality and normal cocoon production in the control and in indoor spinning in hanging cut twigs are fairly comparable.
· The indoor spinning of tasar cocoons has not been able to put forth improved technological qualities in the cocoons as was stipulated.
Source of Information :Annual Report:1972-73
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Project No.:CTR66
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the developmental morphology of American tasar silkworm Antheraea polyphemus.
Personnel :Sinha SS, Bardaiyar VN
Project Period :1972-74
Objectives :To gather information regarding the species of breeding studies and to evaluate the possibility of its commercial exploitation.
Results/Recommendations :The rearing of Antheraea polyphemus was completed within 35 to 40 days as in other Antheraea species. The larval mortality was high during earlier stage due to change in environment but with the advance of age the mortality decreased.
The developmental morphology study revealed that only first instar possesses some notable morphological characteristics, whereas the others have no such morphological distinctions except in the size of the larva and prominence of the lateral line. The number of tubercular setae in Antheraea polyphemus is identical to that of assamensis, roylei and pernyi.
Source of Information :Annual Report:1972-73
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Project No.:CTR67
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Inbreeding with Antheraea mylitta-Inbreeding studies with Raily (M.P).
Personnel :Jha MK, Subramanium RK, Sharma KK, Sen SK, Jolly MS, Singh BD
Project Period :1972-1976
Objectives :To introduce some of the more important eco-races in the breeding programme.
Results/Recommendations :Most of the lines in I9 registered depression in the characters like fecundity, survival rate, cocoons weight and shell weight. Considering the extent of depression and the generation it is proposed to discontinue line breeding and subject all the eleven lines (R111311111, R111311131, R111311132, R214111131, R214111141, R214111161, R214111181, R214111182, R214111183, R21411191 and R21411192) to breeding en masse from the next generation onwards for maintenance as inbred lines.
Source of Information :Annual Report :1976-77
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Project No.:CTR68
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of rearing with different hole sizes in polythene cover.
Personnel :Jolly MS, Ahsan MM, Mohapatra HC
Project Period :1973-1975
Objectives :To work out the best rearing conditions for the younger tasar silkworms, the role of perforations in polythene cover.
Results/Recommendations :
· The batches reared under the polythene with holes have given higher ERR in 1st season whereas batches with no holes gave higher ERR in 2nd season indicating that polythene with no holes is more suitable for 2nd rearing season. The same is true for the character like mortality during indoor.
· In high humid conditions (1st season) use of polythene bags with small and medium holes have better rearing performance; but in comparatively dry conditions (2nd season) use of polythene bags with no holes and small holes are found better.
Source of Information :Annual Report :1974-75
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Project No.:CTR69
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on rearing technique (Effect of rearing with different guages of polythene).
Personnel :Jolly MS, Ahsan MM, Vishwakarma SR
Project Period :1973-1975
Objectives :To study the effect of different thickness of polythene in maintaining the best micro-environment for the proper larval development.
Results/Recommendations :
· Treatmental differences are highly significant in 2 characters (ERR and larval weight). Seasonal differences are highly significant in all characters.
Ø The lots reared with thin (0.03 mm) polythene gave the highest ERR in both seasons.
Ø For larval weight medium guage gave better performance.
Ø The lots reared with thin polythene guage gave the lowest mortality.
· The lots reared under thick polythene (0.17 mm) give poorer performance in all characters as compared to medium (0.08 mm) and thin 0.03 mm) polythenes.
Since thin polythene is more economical and increases the operational efficiency, in view of lower cost and operational efficiency the use of thin polythene is preferable.
Project outcome :Indoor rearing technique (use of polythene cover) developed.
Source of Information :Annual Report :1974-75
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Project No.:CTR70
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains based on qualitative characters-Fixation on the basis of larval body colour and cocoon colour.
Personnel :Jolly MS, Choudhury AK, Sen AK
Project Period :1973-1976
Objectives :
Results/Recommendations :Perusal of ANOVA reveals that the lines differ quite significantly so far as ERR, cocoon weight and shell weight are concerned, the variations within lines being non-significant.
It is observed that the lines (Gg, Gy, Yg and Bg) though fixed for phenotypic characters, are also behaving differently in respect of some of the more important quantitative characters. Gg appears to be the best for cocoon and shell weight and even superior to Daba green. These lines may now be transferred to germplasm bank. The line Yy has reached the purity level in the current year.
Source of Information :Annual Report :1975-76
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Project No.:CTR71
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains based on qualitative characters-Fixation on the basis of larval body, cocoon and female moth colours.
Personnel : Choudhury AK, Singh BD, Sen SK, Gaur JP, Tikoo BL
Project Period :1973-Continue
Objectives :
Results/Recommendations :The results reveals that all the seven combinations have attained 100% purity for larval body and cocoon colours. Two lines, GgC, YyC showed absolute homozygosity for female moth colour also. The trend in respect of other lines with regard to purity of female moth colour was positive (58-88%).
Source of Information :Annual Report :1979-80
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Project No.:CTR72
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the chemical nature of pigments in food plants, eggs and cocoons of Antheraea mylitta.
Personnel :Agarwal SC, Jolly MS, Banerjee ND
Project Period :1974-1976
Objectives :To find out the nature of pigments in the embryo of A. mylitta.
Results/Recommendations :The eggs of Antheraea mylitta contain phenolic substances consisting of 3 components. The Rf value of one of the spot corresponds to catechol and the second spot corresponds to DOPA while the third spot could not be identified.
Source of Information :Annual Report: 1974-75
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Project No.:CTR72
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Cytological survey of the eco-races of Antheraea mylitta D.
Personnel :Jolly MS, Sahai V, Sen SK, Prasad GK
Project Period :1974-1978
Objectives :To trace the mode of numerical chromosomal polymorphism.
Results/Recommendations :Twenty eco-races were collected and studied. The study revealed tht they were monobasic with 31 bivalents. During the current year eco-races from Pratapgarh (U.P) and Bhandhra (Maharashtra) were studied. In the former case observations revealed 31 bivalents at metaphase I, whereas in the latter all the cells examined showed tetraploid (n=2) conditions.
Source of Information :Annual Report :1979-80
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Project No.:CTR73
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Inbreeding studies with Antheraea mylitta-Inbreeding studies with Barharwa (Ranchi, Bihar).
Personnel :Jha MK, Subramanium RK, Shekar MA, Narasimhanna MN
Project Period :1975-Continue
Objectives :To procure pure lines.
Results/Recommendations :The statistical analysis of the data reveal significant difference between the sublines of Barharwa and control for the characters like ERR and cocoon weight at I9. Hatching showed depression at I9 over I7. However, fecundity recorded gain (+10.7 to 172.4%) in 13 lines, ERR (+69.0 to 96.0%) in 3, cocoon weight (+1.7 to 22.0%) in 10, shell weight (+4.5 to 34.1%) in 7 and shell ratio (+0.5 to 14.1%) in 8 lines. The sub-line B1111121113 proved to be superior to Daba for characters like hatching (68.0%) and shell ratio (15.03%) as against 54.0% and 14.67% respectively in Daba.
Source of Information :Annual Report :1975-76, 1979-80
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Project No.:CTR74
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Maintenance of germplasm bank of Antheraea fauna-Maintenance of fixed strains of Daba.
Personnel :Saraswat SB,Chaudhury AK, Sen SK, Ojha NG, Narasimhanna MN
Project Period :1975-Continue
Objectives :
Results/Recommendations :The analysis of various of the commercial crop indicated that ERR, cocoon weight, shell weight and shell ratio were significantly superior to Daba control. GMy and GMg were superior in respect of ERR and Gg, Gy and Yg in respect of shell weight. The respective percentage of gains for ERR were 33.0 and 21.6% while for shell weight 16.7, 12.0 and 14.6%.
All the strains behaved superior to Daba control except YPg in terms of total shell weight/dfl, the best being Gg (360g) followed by Yg (256 g), BMg (251 g) etc., as against 131 g in the control. Some of the strains were tried for hybridization with inbred lines of Daba, in which Yg and Gy proved to be better combiners.
Source of Information :Annual Report :1979-80
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Project No.:CTR75
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Hybridization between the acclimatized eco-races of Antheraea mylitta.
Personnel :Jolly MS, Singh BD, Singh BMK, Sen SK, Narasimhanna MN, Ghanshyam
Project Period :1975-Continue
Objectives :To bring about improvement in the existing stocks and to evolve superior races.
Results/Recommendations :The analysis reveals significant differences between genotypes for cocoon weight at 5% level (MSS-0.9920*, d.f -15). The results indicate that only SCA is significant for cocoon weight (F-2.58* for 6 d.f). The non-significant GCA effect speaks of the lack of additivity in cocoon weight, while significant SCA indicates preponderance of inter and intra-allelic interactions. The mean cocoon weight for different cross combinations shows maximum cocoon weight in Raily x Daba (12.79 g) and Daba x Raily (12.71 g) registering about 9.2 to 9.9% gain over Daba (11.63 g). The combination which has scored next to Raily x Daba is Raily x Laria (12.77 g).
Raily x Barharwa resulted in considerable heterosis (33%) over Daba recording a fecundity of 283 as against 222 in Daba. Hatching does not record any worth mentioning gain.
on the whole, considering ERR and cocoon quality two combinations via., Laria x Daba and Daba x Raily show satisfactory heterosis over Daba at F1 having registered 117.58 and 95.52 g shell weight per laying as against 80.35 g in Daba. Though shell weight is low in Barharwa x Daba the shell weight/laying comes to about 101.88 g.
Source of Information :Annual Report :1977-78
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Project No.:CTR76
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on rearing technique of tasar silkworms Antheraea mylitta D-Studies on controlled rearing for different durations.
Personnel :Jolly MS, Ahsan MM, Nehru CR
Project Period :1975-1977
Objectives :To work out the optimum period of transfer of larvae from indoor avoiding the moulting period.
Results/Recommendations :The results reveal that the performance of 72 hr indoor rearing followed by outdoor rearing is quite comparable to the treatment of indoor rearing till 1st instar in respect of different characters. In 24 and 48 hrs indoor rearing treatments the loss of worms till 1st instar were comparatively more, which may be attributed to the shortened period of protection provided to the tiny worms.
Source of Information :Annual Report :1976-77
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Project No.:CTR77
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strain with higher fecundity and hatchability.
Personnel :Jolly MS, Singh BMK, Sen SK, Singh BD, Nirmal Kumar S, Narasimhanna MN
Project Period :1975-1980
Objectives :To undertake selection programme for high fecundity and hatchability to increase the number of larvae/dfl.
Results/Recommendations :Results revealed that at S7 fecundity, hatching and larva/dfl were inferior to S5 and control in all the sublines. However, at S8 the gain over S6 was noted in all the characters under selection except hatching in the subline-III. All the sublines showed remarkable superiority over control for all characters, specially in yield/dfl. The yield 132 to179 cocoons per dfl as compared to 82 in control. Amongst the four, the subline-I performed the best by scoring 52% gain in fecundity, 24% in hatching and 91% in larvae/dfl over control.
Source of Information :Annual Report :1979-80
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Project No.:CTR78
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains through selection based on important commercial characters-Evolution of strains with uniform development.
Personnel :Jolly MS, Singh BD, Singh BMK, Saraswat SB, Nirmal Kumar S, Narasimhanna MN
Project Period :1975-1980
Objectives :To evolve a strain with uniform development.
Results/Recommendations :Gain was observed in all the sublines and in all the characters at both S7 and S8 generations, barring a few instances. A glance of ANOVA reflects highly significant differences between the sublines and control for late moulters, spinning span, larval period and cocoon weight. Amongst the sublines, C58 is the best which recorded 220 fecundity (24 hr), 80% hatching (24 hr), 5% late moulters, 7 days spinning span and 40 days larval period as against 185, 60%, 15%, 14 days and 48 days respectively in the control.
Source of Information :Annual Report :1979-80
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Project No.:CTR79
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of strains through selection based on important commercial characters-Evolution of strains with higher cocoon weight and shell weight.
Personnel :Jolly MS, Sen SK, Jha MK, Singh BMK, Nirmal Kumar S, Narasimhanna MN
Project Period :1975-1978
Objectives :To evolve commercially superior strains.
Results/Recommendations :The results show superiority at S8 in all the sublines in respect of cocoon quality over S6 as well as control.
On the contrary, at S9 even though the performance of the sublines are inferior to S7, all continued to behave superior to control.
Source of Information :Annual Report :1979-80
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Project No.:CTR80
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Qualitative determination of digestive enzymes of Antheraea mylitta.
Personnel :Agarwal SC, Jolly MS, Banerjee ND
Project Period :1976-1977
Objectives :To determine the enzymes present in alimentary canal of Antheraea mylitta.
Results/Recommendations :
· Amylase, Insulinase, Raffinase, Maltase, Lactase, Lipase, Glycogenase have been found out.
· Distribution of enzymes have been found out.
Source of Information :Annual Report:1976-77
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Project No.:CTR81
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on sericin content in the cocoons of Antheraea species/eco-races.
Personnel :Agarwal SC, Jolly MS, Sinha AK
Project Period :1976-78
Objectives :To prepare a base for evolving a methodology for denaturing of sericin which will be very helpful for silk industry.
Results/Recommendations :The study reveals that highly significant differences exist between the sericin content of 17 eco-races. The analysis indicates that the sericin content in most of the eco-races viz., Daba (Chaibasa), Daba (Lakha), Raily, Sukinda, Sarihan, Modal, Laria, Andhra Pradesh, Jadai, Nalia, Barsatia, Mugia and Jira (W.B) varies between 15.6 to 19.6. The remaining four eco-races namely Bogai, Barharwa, Belgaum and Patjharia have low sericin content 11.8 to 12.9%.
Source of Information :Annual Report :1977-78
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Project No.:CTR82
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Life cycle studies of the microsporidians infecting Antheraea mylitta D.
Personnel :Griyaghey UP, Krishnan PG
Project Period :1976-1978
Objectives :To identify the various stages of the pathogen and to study the life cycle.
Results/Recommendations :Uninucleate stages were round and oval. The nucleus occupied two-third of the cell diameter. Binucleate schizots were also round or oval. Tetranucleate schizonts ranged from spherical to elongate. The tetranucleate schizonts apparently divide by binary fission to form binucleate schizonts. Larger schizonts with less compact nuclei were observed late in the developmental sequence. These forms contained either two, four or eight nuclei with the binucleate and tetranucleate forms, more common than the octonucleate forms. The nuclei mostly lay as diplokaryo with adjacent sides of the paired daughters flattened against each other. The nuclei were considerably smaller in size than the nucleus of the uninucleate schizonts. All schizonts, as well as the sproblast appears to be diplokaryotic. The tetranucleate sporont forms two sporoblasts. This diploblastic mode, a common feature of Nosema sp. is quite evident. Before cytoplasmic division, the body elongated and the paired nuclei passed to the poles. In the developing forms, which were elongate instead of spherical the planes of fission of the dividing diplokaryan nuclei were parallel to the short axis of the cell so that the four nuclei lay in a single row. Stages in cytoplasmic division were rarely seen either during schizogony or sporogony, suggesting that fission is passed through very quickly. Mature sporonts were recognized by cytoplasmic characters and by shape. The cytoplasm was higher than that of the schizonts and appeared vacuolated.
Source of Information :Annual Report :1977-78
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Project No.:CTR83
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of dietary components in the feeding behaviour of Antheraea mylitta D-Qualitative determination of digestive enzymes in the alimentary canal of Antheraea mylitta.
Personnel :Agarwal SC, Jolly MS, Banerjee ND
Project Period :1976-77
Objectives :To determine the enzymes present in the alimentary canal of Antheraea mylitta.
Results/Recommendations :
Amylase, Inulinase and Raffinase: These three enzymes have been detected in all the regions of alimentary canal although the larval stages. The study suggests that the insect is able to digest starch, inulin and raffinose present in food.
Maltase : In foregut, the enzyme has been detected from 5th stage while in the mid gut it is present throughout the development. However, in hind gut it is completely absent. The study suggests that mid gut secretes the enzymes continuously and there is no secretion in the hind gut.
Lactase :This enzyme is present in all the regions of alimentary canal and its secretion starts only when the larva reaches 5th stage. The study implies that the insect is able to digest lactose.
Lipase :This enzyme has not been detected in any part of the alimentary canal during different larval stages.
Glycogenase :The enzyme is present in all the regions of alimentary canal upto early 5th stage. Thereafter the secretion of this enzyme decreases and finally stops in the mature larval thereby indicating its absence at this stage.
Source of Information :Annual Report :1976-77
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Project No.:CTR84
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the transformation of larval body and lateral tubercle colours.
Personnel :Jolly MS, Sahai V, Prasad GK, Sen Sen SK, Nagaraju J, Narasimhanna MN
Project Period :1976-78
Objectives :To study the genetics of the aforesaid transformations.
Results/Recommendations :Some recessive genes responsible for the larval body colour transformation exhibit their phenotype when they come to homozygous condition. The change in tubercle colour and lethality might be due to pleiotropic effect of the same genes. Lethality was manifested both in larval and pupal levels. In one replication almost all the larvae transformed to green. On the other hand in oe replication in transformation was observed.
Source of Information :Annual Report :1979-80
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Project No.:CTR85
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolving suitable package of practices for tasar silkworm egg production and to find out schedule for preservation of silkworm eggs and their transportation.
Project Period :1976-78
Objectives :To evolve techniques for preservation incubation and transportation of egg to ensure synchronized and enhanced hatching.
Results/Recommendations :Hatching period was observed to be delayed by 54 hrs when the 72 hr age group were presented inside the incubator (temp 28-30°C)
Source of Information :Annual Report:1976-77
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Project No.:CTR86
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on predisposing factors.
Personnel :Griyaghey VP, Singh MK
Project Period :1977-78
Objectives :To understand the conditions which make an individual susceptible to disease.
Results/Recommendations :
· High temperature and relative humidity had very little effect on the incidence of disease in 1st instar worm but not applicable in 2nd instar and 3rd instar worm. Starvation of worms help in inducing disease.
· So factors which contribute or excite the multiplication of the disease in Antheraea mylitta was found out.
Source of Information :Annual Report:1977-78
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Project No.:CTR87
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Character association in Antheraea mylitta.
Personnel :Ahsan MM, Khanna RP, Chakravorty D
Project Period :1977-78
Objectives :To study the correlation between different economic characters is important for better understanding of the materials and also for the improvement.
Results/Recommendations :
· Significant positive relationship exists between cut of female pupae and fecundity. However, the relationship between hatching and fecundity though positive yet its values are not significant.
· Higher fecundity can be obtained by selecting heavier female pupae.
Source of Information :Annual Report:1977-78
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Project No.:CTR88
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on feasibility of introducing third crop of tasar in the tropical belts in order to provide whole time engagement to rearers and also to maximize silk production.
Personnel :Ahsan MM, Chakravorty D
Project Period :1977-78
Objectives :The study was initiated with Daba trivoltine stock of tasar silkworm brought from CTSSS, Lakha CMP.
Results/Recommendations :The rearing results of all lots were encouraging (35 to 39%) ERR on average despite adverse climate. The fecundity and fertility during 3rd crop are encouraging (246 egg/laying) and 67.3% hatching but cocoon quality was poor.
Source of Information :Annual Report:1977-78
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Project No.:CTR89
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on stem borer of primary tasar food plants-Studies on the incidence, periodicity and bionomics of stem borer.
Personnel :Das PK, Nigam MP, Sharan SK
Project Period :1979-82
Objectives :To find out the incidence of stem borer on the primary food plants of tasar silkworm.
Results/Recommendations :
· Average infestation in Terminalia tomentosa was 17.58% having maximum incidence (24.56%) in the month of July. In Terminalia arjuna the corresponding figures were 11.8% and 12.45% respectively. It was find out that infestation period was mainly July-August in case of Asan and July-Sep in case of Arjuna.
· In Asan mature borers were observed from the month of July itself and same was noticeable in Arjuna from September onwards.
Source of Information :Annual Report:1981-82
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Project No.:CTR90
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Estimation of uric acid in the developing embryo of Antheraea mylitta D.
Personnel :Banerjee ND, Sinha AK
Project Period :1979-82
Objectives :To estimate the uric acid levels in the silkworm egg.
Results/Recommendations :The concentration of uric acid is maximum in 3 day and 4 day old egg (0.60 mg/egg) and minimum in 7 day old egg (0.32 mg/egg) i.e., concentration of uric acid falls to minimum just before hatching of egg.
Source of Information :Annual Report:1981-82
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Project No.:CTR91
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on gall insect-Studies on the incidence of gall insect infestation on the primary tasar food plants.
Personnel :Das PK, Singh RN
Project Period :1979-84
Objectives :To establish seasonal cycle of infestation of the gall insect on Terminalia tomentosa and Terminalia arjuna.
Results/Recommendations :
The average gall/leaf varies from 0.83 to 12.13 for Terminalia tomentosa and 0.62 to 5.8 for Terminalia arjuna.
It is evident from the data that the rainy season (July-Aug) is the period for the peak infestation. The comparison of the two years data reveals a perceptible drop in the infestation. This is evident from gall percent as well as mean number of galls/leaf.
Source of Information :Annual Report:1982-83
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Project No.:CTR91
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Tropical tasar silkworm rearing on temperate tasar food plants.
Personnel :Jayaswal J, Patnaik AK, Sengupta K
Project Period :1979-82
Objectives :The trial rearing of Antheraea mylitta on the three species Q. serrata, Q. dealbata, and Q. incana.
Results/Recommendations :
· The rearing on Q. dealbata shows encouraging results during first crop and also rearing on Q. dealbata give 24.0% ERR, rearing failed both on Q. serrata and Q. incana.
· Thus it appears that oak flora may be used as a substitute (secondary) food plants during 1st crop rearing.
Source of Information :Annual Report:1982-83
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Project No.:CTR92
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Preservation of seed cocoon on tropical tasar silkworm for uniform and timely emergence.
Personnel :Ahsan MM, Chakravorty D, Narasimhanna MN
Project Period :1982-83
Objectives :In order to overcome the difficulties attempts are in progress to check/delay the emergence of moth till favourable period.
Results/Recommendations :
· Preservation of seed cocoons at 10°C from October to March, 15°C during April followed by preservation for short duration at 20-25°C before releasing to room temperature has shown encouraging results.
· The old belief that Laria emerges earlier to Basharwa is also not teneable by this result.
Source of Information :Annual Report:1982-83
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Project No.:CTR93
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on red beetle-Studies on chemosterilization of red beetle with Thiourea.
Personnel :Das PK, Singh RN
Project Period :1982-83
Objectives : To study chemosterilization of red beetle.
Results/Recommendations :Almost 100% mortality recorded when red beetles was fed with leaves treated with 0.5 and 1.0% Thiourea. It is evident that the treatment of the male with 0.25% Thiourea induced by higher percentage of sterility (25.5%) than that caused by the treatment of the female alone (14.0%). On the other hand the cross between the treated male and the treated female manifest the highest sterility of 33%.
Source of Information :Annual Report:1982-83
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Project No.:CTR94
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect on different colour light on coupling behaviour.
Personnel :Jayaswal J, Patnaik AK, Sengupta K
Project Period :1982-83
Objectives :It has been planned to see whether different colours of light have any impact on the coupling efficiency.
Results/Recommendations :
· The absolute mean as well as that on transferred scale for the blue light set is maximum and is minimum for red light.
· Nevertheless the highest value of coupling observed under blue light suggest a vigorous analysis on a broader scale.
Source of Information :Annual Report:1982-83
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Project No.:CTR95
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Effect of different colour lights and infrared irradiation on the coupling aptitude of A. mylitta moths.
Personnel :Jayaswal J, Singh SP, Singh GS, Singh MK, Sengupta K
Project Period :1982-1984
Objectives :To study whether premating irradiation of the moths can influence the coupling aptitude.
Results/Recommendations :Results revealed that the coupling index is highest for blue light and minimum for red light and the value obtained for the red light is statistically similar that obtained for green or yellow light.
Source of Information :Annual Report: 1983-84
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Project No.:CTR96
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on eggs of Antheraea species-Estimation of cholesterol and proteins in the developing embryo of A. mylitta D.
Personnel :Sinha AK, Goel RK, Chaudhary SK
Project Period :1982-83
Objectives :To estimate the concentration of cholesterol and protein present in the egg of A. mylitta.
Results/Recommendations :It can be seen that the concentration of cholesterol increases initially, remains constant during the middle period of embryogenesis and afterwards follows a declining trend till hatching.
Protein concentration was found to be highest (225 mg/100 eggs) in 3-4 days old eggs and the lowest (90 mg/100 eggs) in 8 days old eggs, i.e., the protein concentration in eggs drops to minimum just before hatching.
Source of Information :Annual Report :1982-83
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Project No.:CTR97
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the assessment of commercial characters on Daba cocoons in respect of shell weight.
Personnel :Ghosh SS
Project Period :1983-84
Objectives :To find out silk yield of the cocoons on the basis of shell weight and shell texture out of a lot of 12,000 live Daba cocoons harvested in the 3rd crop.
Results/Recommendations :
· All the commercial characters are high in Grade-A cocoons and the values are gradually decreasing towards the grades consisting of lower shell weight raw silk and raw silk % are having direct relation with the shell weight. More the shell weight higher the value.
· These studies indicate the possibility to predict the yield of raw silk/100 or a kahan of cocoons after determination of shell weight from the sample cocoons. Accordingly, the transaction price of the cocoons can be determined showing the market price or raw silk and silk waste.
Source of Information :Annual Report:1983-84
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Project No.:CTR98
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Early age tasar silkworm rearing and development of artificial diet.
Personnel :Sengupta AK, Singh SP, Sinha MK, Sengupta K
Project Period :1983-87
Objectives :To formulate a suitable artificial diet for the young tasar silkworm rearing.
Results/Recommendations :
· Rearing indoor on cut twigs of Terminalia arjuna for 72 hrs served as control.
· The diets (A and B) were acceptable to the worms but the mortality % was found to be higher over control. On comparison between two diets mortality was recorded higher in diet ‘B’ i.e., 15.44% in 1st and 6.51% in 2nd crop in 48 hrs against 19.26% and 3.36% of diet ‘A’ in 12 hrs, respectively. Growth observed on diet ‘A’ was almost at par with that on control.
Source of Information :Annual Report:1986-87
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Project No.:CTR99
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on moths of Antheraea species-Free aminoacids in healthy and pebrine infected moths of Antheraea mylitta D.
Personnel :Sinha USP, Sinha AK, Sengupta K
Project Period :1984-85
Objectives :Estimation of aminoacids in healthy and pebrine infected moths of Antheraea mylitta.
Results/Recommendations :
· Free amino acids are in higher concentrations in male moths than in female moths.
· Moreover, the concentration of the free amino acids are lower in pebrine infected moth than that of healthy moths.
Source of Information :Annual Report:1984-85
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Project No.:CTR100
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on moths of Antheraea species-Estimation of phosphorus compounds in the healthy and pebrine infected moths of Antheraea mylitta D.
Personnel :Sinha USP, Sinha AK, Sengupta K
Project Period :1984-85
Objectives :Estimation of phosphorus compounds in the healthy and pebrine infected moths of Antheraea mylitta D.
Results/Recommendations :
· Total acid soluble phosphorus and lipid phosphorus is more in male moth than in female but reverse in inorganic content in case of both of healthy and pebrine infected moths.
· Besides this, concentration of inorganic phosphorus, total acid soluble phosphorus and lipid phosphorus is lower in pebrine infected moths in comparison to healthy moths.
Source of Information :Annual Report:84-85
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Project No.:CTR101
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on larval cuticles of Antheraea assamensis.
Personnel :Sinha AK, Sinha USP, Sengupta K
Project Period :1984-85
Objectives :When tasar silkworm pupates it casts its last larval skin which was collected and subjected to chemical analysis.
Results/Recommendations :
· Antheraea assamensis larval cuticle is very rich in minerals but poor in phosphorus. Five amino acids (aspartic acid, glutamic acid, lysine, serine and glycine) in free state which twenty amino acids are present in protein bound state.
· The bulk of cuticular proteins in alkali soluble and glycoprotein content in the cuticle is 72.40%.
Source of Information :Annual Report:1984-85
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Project No.:CTR102
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on silk gland of Antheraea mylitta larva.
Personnel :Sinha AK, Sengupta K
Project Period :1984-85
Objectives :To estimate free aminoacids in silk gland of healthy green larvae.
Results/Recommendations :Seventeen amino acids are present in the free state out of which Leucine/Isoleucine has higher concentration (5052 mg/g) and Cysteic acid, Methionine suplhoxide and Proline are lowest (67 mg/g)
Source of Information :Annual Report:1984-85
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Project No.:CTR103
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Supplementation of ascorbic acid and lysine of sal leaves for adaptation of Daba on sal.
Personnel :Sengupta K, Jayaswal J, Singh SP, Singh MK, Singh GS
Project Period :1984-85
Objectives :Whether the spraying of lysine and ascorbic acid on sal leaf can help in adaptation of Daba ecorace on the same.
Results/Recommendations :
· Three concentrations of 0.25, 0.50 and 1% (ascorbic acid) were tried. The aqueous solution of 25 ml per plant rearing one dfl of Daba ecorace each were sprayed within each instar upto 3rd stage but during 4th and 5th instars the quantity was doubled.
· The worm failed to establish themselves on sal foliage even with supplementation of their food stuff with ascorbic acid and lysine.
Source of Information :Annual Report:1984-85
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Project No.:CTR104
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title : Studies on daily change in larval weight.
Personnel :Sengupta K, Jayaswal J, Singh SP, Singh MK, Singh GS
Project Period :1984-85
Objectives : To record the daily change in larval weights of tasar worms.
Results/Recommendations : 10 worms of each replication were weighed just after hatching and thereafter everyday weight was recorded upto the pupation.
· Larvae attained maximum weight one day prior to spinning. The maximum weight was 32.916 gm in replication R1 during 1st crop which it was 32.815 gm during 2nd crop in replication R3.
· Disturbance of larvae for 15 minutes every day to undertake the weight is detrimental to larval growth and survival worms took 15-20 minutes additional time to settle after they were detached from the plants for 15 minutes.
Source of Information :Annual Report:1984-86
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Project No.:CTR105
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Modification of new techniques of rearing.
Personnel :Sengupta AK, Sinha MK, Singh SP, Singh GS, Sengupta K
Project Period :1984-86
Objectives :To substitute bottle used in new techniques of rearing by other containers such as rectangular perforated plastic boxes and ordinary circular sieve having wooden border to find their efficacy for controlled indoor rearing.
Results/Recommendations :
· Mortality was highest in the lots reared inside the plastic boxes and least in case of bottles.
· From the point of management the use of plastic boxes has been found to be best followed by sieve and the floor area requirement was minimum in plastic box used and was maximum in case of bottles.
Source of Information :Annual Report:1985-86
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Project No.:CTR106
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Physiological studies on the effect of physiochemical factors on silkworm Antheraea mylitta D.
Personnel :Dubey OP, Malhotra DN
Project Period :1984-1987
Objectives :Analysis of physiochemical factor on silkworm in relation to physiology.
Results/Recommendations :
· β-Sitosterol was tested on the Antheraea mylitta D.
· Biochemical changes were observed in the different tissues viz., haemolymph, fat body and gonads.
· Biochemical parameters studied were total protein, RNA, DNA, Cholesterol and glycogen.
· 2-4µgm/g body weight dose of β-Sitosterol in the Antheraea mylitta showed significant increase in the above biochemical parameters.
· β-Sitosterol was effective at 2 and 4µgm/g of silkworm body is significantly increase in the characters studied.
Source of Information :Ph.D thesis 1987
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Project No.:CTR107
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Chemical and biochemical studies on tropical tasar silkworm Antheraea mylitta D during various developmental stages of its life cycle.
Personnel :Sinha USP
Project Period :1984-1988
Objectives :Chemical and biochemical studies of Antheraea mylitta D.
Results/Recommendations :
· Healthy and pebrine infected silkworm were analysed for proteins, carbohydrates, aminoacids and phosphorus compounds during various developmental stages i.e., egg, larva, pupa and adult. All the above constituents are significantly lowers in pebrine infected worms as compared with healthy worms.
· Much attention should be given a pebrine infected worms because it significantly affect the biochemical constituents of silkworm and decreases the commercial characters the cocoons.
Source of Information :Ph.D thesis, Ranchi University 1988
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Project No.:CTR108
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the excretory materials of Antheraea mylitta.
Personnel :Sinha USP, Sinha AK, Sengupta K
Project Period :1985-86
Objectives :To study excretory materials of Antheraea mylitta.
Results/Recommendations :
· Except total minerals all the constituents are present in higher concentrations in the excreta of pebrine infected larvae as compared to healthy larvae.
· Infected larvae has different excretory constituents than normal ones.
Source of Information :Annual Report:1985-86
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Project No.:CTR109
Project Title :Indoor rearing of tasar silkworm upto 144 hrs.
Personnel :Sengupta AK, Chaudhari CC, Sinha MK, Dubey OP, Chowdhary AK, Singh GS, Singh SP, Sengupta K
Project Period :1985-86
Objectives :Indoor rearing for 72 hrs after hatching is practiced to protect worms from natural vagaries to yield maximum number of cocoons.
Results/Recommendations :
· Young tasar silkworm were reared on Sal cutting twigs for a period of 72, 84, 96, 120 and 144 hrs following new techniques of rearing.
· Rearing of young tasar silkworm inside the pit was introduced.
Source of Information :Annual Report:1986-87
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Project No.:CTR110
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Histochemical studies on the alimentary tract of tasar silkworm Antheraea mylitta D.
Personnel :Niranjan Kumar, Malhotra PN
Project Period :1985-1994
Objectives :To study histochemical architecture and to identify histochemical basic of the alimentary tract physiology along with biochemical analysis.
Results/Recommendations :
· The work resulted in obtaining tissue architecture of foregut, mid gut and hindgut in the larval, pupal and adult stage of tasar silkworm. The histochemical studies were on the localization of alkaline phosphatase protein and glycogen molecules. The biochemical analysis reported on increasing variation of protein, glycogen and cholesterol in the larval instars of Antheraea mylitta.
· It can be inferred that the histocytologial architecture are highly active in larval stages, inactive in pupa and adult, which is supported by the role of alkaline phosphatase in the absorption and transport of nutrient molecule of protein, glycogen and cholesterol.
Source of Information :Ph.D thesis, Ranchi University 1994
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Project No.:CTR111
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on eggs of Antheraea species.
Personnel :Sinha AK, Sinha USP, Sengupta K
Project Period :1985-86
Objectives :
· Estimation of protein in developing embryo.
· Estimation of free aminoacids in the larval and pupal haemolymph.
· Estimation of protein, carbohydrate and uric acid in the larval and pupal haemolymph of Antheraea proylei
Results/Recommendations :
· Seventeen amino acids namely cystine, aspartic acid, glutamic acid, serine, glycine asparagine, lysine arginine, theonine, histidine, -alanine, tyrosine, methionine sulphoxide, proline, valine, leucine/isoleucine and β-alanine were present in embryo of Antheraea proylei.
· Concentration of protein and carbohydrates are higher in the haemolymph of female pupae than male pupae, however reverse is found in the case of uric acid.
Source of Information :Annual Report:1985-86
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Project No.:CTR112
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :To study the rearing capacity of one hectare of economic plantation and yield of leaves of Terminalia arjuna.
Personnel :
Project Period :1986-87
Objectives :To estimate the actual rearing capacity/hectare of Terminalia arjuna for best utilization of foliage available.
Results/Recommendations :
· T1-200, T2-250, T3-300, T4-350, T5-400, T6-450, T7-control (No rearing). 1 hectare can sustain 350 dfls in 1st crop and 450 dfls in 2nd crop.
· No significant results were observed in respect to rearing performance and cocoon characters in any of the treatments during 2nd crop.
Source of Information :Annual Report:1986-87
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Project No.:CTR113
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Biochemical Analysis
Personnel :Sengupta AK, Das, DP, Mohapatra, Ajit Kumar, Bajpeyi CM
Project Period :1986-87
Objectives :
· To study biochemical characterization and variation of Raily ecorace.
· To study the autogenesis of haemolymph protein.
Results/Recommendations :
· Comparative proteinograms of female Raily population from different areas showed high level of polymorphism. Increase in the protein fractions over the larval stages followed by decline of the fractions in pupal-pharate adult and adult stages were noticed.
· During pupal to adult transformation the protein with low molecular weight were resolved leaving no trace in adult.
Source of Information :Annual Report:1986-87
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Project No.:CTR114
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :To study the effect of different cuts in polythene tube on growth and yield of Terminalia arjuna seedlings.
Project Period :1986-87
Objectives :To overcome the problem of polythene bag different types of cuts in polythene have been considered in order to find out its effect on growth and development of Terminalia arjuna.
Results/Recommendations :
· Plant height – The maximum value obtained for treatment T4 (135.58 cm) and minimum T0 i.e., control (111.86 cm) leaf yield (The CD values at 1% and 5% level were 12.19 and 8.57). Maximum value was recorded for T4 (3623.48 kg) and control (1830.41 kg/ha).
· In general T4 treatment i.e., polythene tube completely removed gave the best result followed by T2 i.e., the polythene tube cut vertically on both the sides.
Source of Information :Annual Report:1986-87
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Project No.:CTR115
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Physio-pathological studies of tasar silkworm-Studies on the phospholipids contents of healthy and infected larvae of A. mylitta.
Personnel :Griyaghey UP, Virendra Kumar, Sinha SS, Sengupta K
Project Period :1987-88
Objectives :
· To estimate the changes in the body constituents of tasar silkworm pupae due to disease.
· To find out the effect of drugs in restoring the normal level of constituents in the body of tasar silkworm.
Results/Recommendations :
· The result show that the quantity of phospholipids was higher in disease free lots, medium in treated lots and lowest in diseased (untreated lots).
· The application of Carbestin checks the further deterioration and dysfunction of the tissues and as such the biosynthesis of the nutrients is restored to a considerable extent.
Source of Information :Annual Report:1987-88
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Project No.:CTR116
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Control measures against different diseases-Chemotherapautic control of microsporidiosis.
Personnel :Griyaghey UP, Quadir SM, Pramod Kumar, Sinha SS, Sengupta K
Project Period :1987-90
Objectives :To see the synergistic effects of different chemicals.
Results/Recommendations :A perusal of the data shows that all the three concentrations (0.01, 0.05 and 0.10%) of Carbestin have reduced pebrine mortality percentage significantly but on the basis of ERR%, it is found that 0.05% is the most effective concentration as it reduces the mortality percentage and do not have any harmful effect on the health of the worm.
Source of Information :Annual Report :1989-90
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Project No.:CTR117
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Phosphatase estimation in Antheraea mylitta-Estimation of acid and alkaline phosphatase in the larval and pupal haemolymph of Antheraea mylitta D.
Personnel :Sinha USP, Sinha AK, Choudhary CC
Project Period :1987-88
Objectives :Estimtin of acid and alkaline phosphatase in the larval and pupal haemolymph of Antheraea mylitta using Hawk, Oser and Summerson method.
Results/Recommendations :The concentration of acid and alkaline phosphatase is the lowest in spinning larvae. During moult the concentration of acid phosphatase decreases while that of alkaline phosphatase increases. Concentration of both acid and alkaline phosphatase is more in male pupae in comparison to female pupae.
Source of Information :Annual Report :1987-88
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Project No.:CTR118
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Phosphatic estimation in Antheraea mylitta-Estimation of acid and alkaline phosphatase in the developing embryos of Antheraea mylitta D.
Personnel :Sinha USP, Sinha AK
Project Period :1987-88
Objectives :Estimation of acid and alkaline phosphatase in the developing embryos by Hawk, Oser and Summerson method.
Results/Recommendations :The highest concentration of both acid and alkaline phosphatase was recorded on the second day of embryonic development. There is frequent rise and falls in the concentration of acid phosphatase during embryonic development but the concentration of alkaline phosphatase increases only on the second day of embryonic development and then decreases gradually till the hatching of the larvae. Besides, the concentration of acid phosphatase is higher in the embryo in comparison to alkaline phosphatase.
Source of Information :Annual Report :1987-88
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Project No.:CTR119
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Etimtion of free aminoacids, proteins and carbohydrates in the developing embryos of Antheraea proylei J.
Personnel :Sinha AK, Sinha USP, Sengupta K
Project Period :1987-88
Objectives :Estimation of carbohydrates in the developing embryos of Antheraea proylei J by Trevelyam Harrison method.
Results/Recommendations :The concentration of carbohydrates is the highest in one day old embryos and lowest in nine day old embryos indicating thereby that the carbohydrate contents in embryos of Antheraea proylei drops to minimum before hatching of the larvae.
Source of Information :Annual Report :1987-88
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Project No.:CTR120
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the abundance and distribution of Antheraea mylitta larvae in response to the abiotic factors, in and around Nagri, Ranchi.
Personnel :Alok Sahay
Project Period :1988-1993
Objectives :To study the population dynamics of Antheraea mylitta.
Results/Recommendations :
· Distribution of Antheraea mylitta in normal rearing circumstances and in competitive circumstances were worked out, which resulted into normal distribution and poison distribution respectively.
· Number of silkworms brushed on the bushes should be restricted upto 100 in healthy six years host plants.
Source of Information :Ph.D thesis, Ranchi University 1993
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Project No.:CTR121
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Control measures against different diseases-Control of microsporidiosis by treatment with hydrochloric acid.
Personnel :Griyaghey UP, Quadir SM, Ashish Kumar, Sinha SS
Project Period :1988-91
Objectives :To assess the germicidal potential of hydrochloric acid in controlling microsporidiosis.
Results/Recommendations :Results indicated that treatment of eggs with HCl (Sp. gr. 1.05) on 4th day of oviposition, at 40°C for 10 mins. was found to reduced mortality due to pebrine to the tune of 26.0% against 61.0% of control. Consequently ERR has been increased from 9.8% to 32.5%.
Source of Information :Annual Report :1990-91
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Project No.:CTR122
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Nutritional requirement.
Personnel :Reddy DC, Bania HR, Sharma KK, Sinha SS
Project Period :1989-90
Objectives :
· To improve the health of the tasar silkworm by supplementing the food.
· Studies on the effect of pruning at different period of leaf yield and cocoon quality.
Results/Recommendations :
· Leaf extracts 4%, 7%, 10%, 13% and 16% were sprayed on the leaves and fed to the larvae once in every instar. All the concentration of leaf extracts show higher ERR than control. Significant increase in yield during 1st crop when tasar worms were reared on March and April pruned plants.
· No dose depended response has been observed so far.
· No significant difference was observed in case of cocoon characters.
Source of Information :Annual Report:1989-90
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Project No.:CTR123
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Selection studies for higher yield components.
Project Period :1989-90
Objectives :Selection pressure on four lines of Daba and three lines of Sukinda was continued for evolving lines with higher yield components.
Results/Recommendations :Lines 18-B of Daba and S-5 of Sukinda showed slight gain in shell weight as compared to last year. However, for the year under report only S-14 and S-5 showed significant gain over control.
Source of Information :Annual Report:1989-90
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Project No.:CTR124
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Control measures against different diseases-Studies on the effect of some disinfectant combination for the control of diseases.
Personnel :Griyaghey UP, Virendra Kumar, Sinha SS
Project Period :1989-91
Objectives :To evolve a suitable combination of disinfectants for the control of various diseases of tasar silkworm.
Results/Recommendations :The results indicate that the PBB (Paraformaldehyde-0.5%, benzoic acid-0.5% and bleaching powder 1%) formulation was considerably effective in checking the disease mortality (bactereosis and virosis) in both the treatments (T1 and T2- the formulation was sprayed over the bushes along with worms and over the bushes without worms) but there is no significant difference to control.
Source of Information :Annual Report :1989-90
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Project No.:CTR125
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Cytological studies of Antheraea mylitta.
Personnel :
Project Period :1990-91
Objectives :
· To establish the stages of meiotic division in the germ cells of different age of silkworm.
· To study the behaviour of meiotic chromosome for determination of chiasma frequency etc., in different biotypes.
· For cytological characterization of different biotypes.
Results/Recommendations :
· Periodical observation revealed that during Nov-Dec majority of the germ cells were in primary and secondary spermatogonial stage of meiotic division with few cells belonging to Leptotene and Zygotene stage of Prophase-I. During Jan-Feb Leptotene and Zygotene were more prevalent with few cells of Pachytene stage. During March Diplotene and Diakinesis stages appeared.
· During all the months some of the individuals showed some advance stages of meiotic development viz., Diplotene, Diakinesis, Metaphase-I. But in no case secondary spermatocytes were observed.
Source of Information :Annual Report:1990-91
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Project No.:CTR126
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Morphological studies of female reproductive organs of Antheraea mylitta and studies on the effect of fecundity enhancing substances.
Project Period :1990-91
Objectives :To study the female reproductive system of Antheraea mylitta.
Results/Recommendations :
· An instance of asymmetry in ovariole number was also observed indicating 4 of ovarioles on the left and 5 ovarioles on the right side of the ovary. But the frequency of occurrence is low. Total number of eggs was 317 (abnormal moth) which in normal moth (262). But after spraying 10% acetic acid, 5% benzoic acid fecundity was more 87.25 and 87.28 than the normal.
· Benzoic acid does not show significant impact on third day of laying.
Source of Information :Annual Report:1990-91
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Project No.:CTR127
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of superior breeds through selection.
Project Period :1991-92
Objectives :To evolve high yielding varieties through selection on the basis of various characters.
Results/Recommendations :The female pupae with an average weight of 5.3 gm and above were selected and were utilized for preparation of layings. An increase of 50-55% fecundity was noted. 210 dfls prepared from cocoons selected on the basis of higher shell weight (0.6 gm and more) was reared. For fixation of marker strain the larvae with yellow and blue colour were isolated from backcrossed progenies. 62 blue and 83 yellow layings were prepared.
Source of Information :Annual Report:1991-92
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Project No.:CTR128
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Management of uzifly, Blepharipa zebina, a serious endoparasitoid of silkworm, Antheraea mylitta through chemical and biocontrol agents.
Personnel :Ram Kishore, Sharma SP, Sinhdeo SN, Suresh Rai, Roy GC, Sinha BRRP, Thangavelu K
Project Period :1992-2004
Objectives :To evolve suitable control measures for uzifly infection in Antheraea mylitta D.
Results/Recommendations :
Chemical control : Bleaching powder (2%) solution may be sprayed on silkworm body to kill uzifly eggs. This treatment has to be repeated 4 to 5 times.
Biological control : Nesolynx thymus, a biocontrol agent of uzifly to be released at the rate of 100000 adults for 100 dfls of silkworm rearing.
Project outcome :Standardization of Mass multiplication technique of natural enemies of uzifly.
Source of Information : Annual Report: 2003-04
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Project No.:CTR129
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Characterisation of existing ecoraces of Antheraea mylitta D.
Personnel :Sinha AK, Sinha SS, Singh BMK, Kar PK, Pd Singh BRR, Sharma KK, Srivastava AK, Naqvi AH, Kumar R
Project Period :1995-96
Objectives :To conduct survey to collect natural biotypes of Antheraea mylitta D to exploit the genetic resources.
Results/Recommendations :
· Daba performed best for fecundity, ERR% and cocoon weight. For fecundity Laria-P and MK94 were on par with 2nd position. Sarihan has best hatching followed by Daba. Shell weight of MK94 and Modal was identical and superior to all others. But to some extent identical to Raily.
· Best performer for SR% were Modal, MK94 followed by Laria-P. None of the biotypes collected from the North east and Palampur could survive under Ranchi condition.
Source of Information :Annual Report:1995-96
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Project No.:CTR130
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Consumption and utilization of leaves of different food plants by different ecoraces of Antheraea mylitta with special reference to silk and egg production.
Personnel :Ojha NG, Panday PN
Project Period :1995-2005
Objectives :To ascertain qualitative nutritional requirement of tasar silkworm for silk and egg production.
Results/Recommendations :Arjun leaves was found to be more suitable with regards to most of the nutritional parameters and indices that exhibited Asan and Sal leaves on wet weight basis during indoor experimentation. For early instar rearings Sal leaves were found to be more palatable to the larvae.
Project Outcome :Technology for indoor rearing of tasar silkworm upto cocooning was evolved.
Source of Information :Ph.D Thesis, Ranchi Unveristy 2005
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Project No.:CTR131
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the physiology of diapause and reproduction in Antheraea mylitta D.
Personnel :Saran SK, Pradeep AR, Singh BMK, Ojha NG, Rachiary SC, Pd Sinha BRR
Project Period :1996-97
Objectives :
· Studies on the factors responsible for occurrence/termination of diapause.
· Adult emergence rhythm in their grainage duration.
Results/Recommendations :Adult emergence was noticed during every hour interval through out the day for a period of 10 days. The observation was taken during peak grainage period of 1st, 2nd and 3rd seasons. The emergence showed two small peaks (11% and 12.1%) in the late afternoon and early night hours and a large peak at 20 hr (20%) in the 1st grainage. The II and III season showed a single peak between 19 hr and 22 hr.
Source of Information :Annual Report:1996-97
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Project No.:CTR132
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on pests and disease of tasar silkworm.
Personnel :Bansal AK, Shukla RM, Roy DK
Project Period :1996-97
Objectives :Pathological studies on silkworm protozoan, bacterial and viral disease and develop diagnostic kits.
Results/Recommendations :
· Polyclonal antibodies raised so far has also shown improved reactivity against Nosema species spore surface antigen.
· It was observed that in created lots larval mortality due to virosis was reduced by 17% with an improvement of cocoon yield by 17%.
· Attempts were made to general monoclonal antibodies to develop specific, simple and reliable immunoassays for detection of microsporidian Nosema species infecting silkworm Antheraea mylitta.,
Source of Information :Annual Report:1996-97
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Project No.:CTR133
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the economics of tasar culture.
Personnel :Brahmachari BN, Sinha SS
Project Period :1996-97
Objectives :To calculate the production cost of rearing, reeling, spinning and weaving, gross and net income per unit are of tasar culture and socioeconomic status of tasar rearers/reelers/weavers.
Results/Recommendations :During 1996-97 production cost of II crop rearing of 100 dfls was estimated as Rs.4.00. During the year the annual income was found to be below 5000-6.98%, 5000-10000-54.09%, 10,000-5,000-31.36%, 15,000-20,000-7.57%
Source of Information :Annual Report:1996-97
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Project No.:CTR134
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title : Studies on therapautic and chemo-control of pebrine
Personel : Alok sahay
Project Period: 1997-2002
Objectives: To conduct field trials of evolved drug formulation for pebrine control.
Results/Recommendations:
· Improvement was maximum in ERR% during III crop (treatment 57% and in control 45%). At RTRS Dumka a gain of 8.9% in ERR was recorded during II crop (treatment 28.8%, control 19.8%) and 12.2% during III crop (treatment-44.2% and control 32.6%).
· By the application of the aforesaid drug formulations the improvement in the survival percentage and reduction in the larval period of the silkworm was observed by RTRS, Bhandara and RTRS, Jagadalpur.
Source of information: Annual Report: 2002-2003
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Project No.:CTR135
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on rearing techniques of tropical tasar silkworm Antheraea mylitta.
Project Period :1997-98
Objectives :
· Studies on innovation of rearing equipments suitable for indoor rearing of tropical silkworm Antheraea mylitta.
· Studies on innovation/motivation of rearing in trays for young age silkworms.
· Studies on innovations/modifications of rearing trays for late age silkworm.
· Studies on restriction of outward movement of young age larvae from rearing trays.
Results/Recommendations :The young age silkworm rearing was conducted in wooden trays (1’6” x 1’x3”), sieve (1’6”dia and 3” depth) and plastic basin (1’6” dia x 6” depth) and without base frames and with and without outward movement restricting substance (viz., grease, vaseline, balwa oil). Chawki larva were offered with tender shoots of arjun. The late age worms were reared (III and IV) instar on medium leaves and 5th instar on mature leaves and shoot feeding methods at 3 feeding/day loss of young age worms was minimum (6%), significant higher ERR (10.67% to 11.67%) was recorded in higher rearing methods. Rearing conducted in wooden trays/sieve with base frame + grease or baseline was higher than that wire mesh/sieve.
Source of Information :Annual Report:1997-98
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Project No.:CTR136
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Conservation of eco-race Modal in in situ condition
Personnel :Satpathy B
Project Period :1998-2003
Objectives :Nature grown Modal cocoons were collected from ecopockets Lulung (223 ft MSL) a peripheral zone of simlipal biosphere and morphometric assessment was done.
Results/Recommendations :
· Colour polymorphism was observed grey and yellow cocoons occurred in the ratio of 78:22. Male and female ratio in grey and yellow cocoon population was 61:39 and 65:35 respectively. Grainage at Jadida (Kaptipada) recorded 83.85% moth emergence, 42% coupling and 296 dfls prepared with a fecundity of 252, and hatching of 73%.
· Modal cocoons produced in nature are hard shelled and thick peduncle and round ring. Cocoons show colour polymorphism and blackish. Grey dominate the population. In nature Modal is predominantly sal based. Based on experimental observation conservation techniques for Modal was developed.
Source of Information :Annual Report:2002-03
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Project No.:CTR137
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Improvement of oak tasar silkworm through hybridization and selection.
Personnel :Singh NI
Project Period :1998-2003
Objectives :Five evolved breeds viz., PRP2, PRP3, PRP5, PRP12 and RPPc1 were evaluated against Antheraea proylei through multilocational trial.
Results/Recommendations :The selected breeds were evaluated for eight different parameters viz., fecundity, hatching, cocoons/dfls, ERR, cocoon weight, shell weight, shell ratio and filament length. Fecundity was 141 in C4 (Antheraea proylei x PRP12), to 152 in C3 (PRP4 x PRP12), cocoon yield was 37/dfl in C4 to 53/dfl in C3, Cocoon filament length was 580 m in C4 to 711m in C3. During summer average fecundity 182 in C2 (RPP4 x PRP2) to 204 in C3, average cocoon yield was 181dfl in C3 and 25/dfl in C3. Evaluation index was C3>C1>C2>C4. Ranking studies for eight different characters by the method of Mano et al (1983) showed that PRP2 performs best.
Source of Information :Annual Report:2002-03
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Project No.:CTR138
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Hybridization studies in Antheraea mylitta
Personnel :Naqvi AH
Project Period :1998-2003
Objectives :Rearing of three identical promising hybrids viz., Sarihan x Laria (S x L) Modal x Sarihan (M x S), Modal x Daba (M x D) were conducted in Ranchi during seed and commercial crops.
Results/Recommendations :
· During seed crop yield per dfls was 79, 52 and 45 whereas in commercial crop it was 41, 38 and 33 cocoons for the hybrids S x L, M x S, M x D. Trial rearing of above mentioned hybrid was conducted at farmers level in Dumka during seed crop. At farmers level maximum fecundity (302) was reported for M x D, best hatching was for M x S (81%) cocoons S x L (52), M x S (48), M x D (39).
· Regarding cocoon weight, shell weight, silk ratio, the hybrids involving sarihan as one of the parents performed better.
Source of Information :Annual Report:2002-03
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Project No.:CTR139
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Conservation of ecorace Bhandara in in situ condition.
Personnel :Mathur SK
Project Period :1998-2003
Objectives :Frequency distribution of nature grown cocoon of ecorace Bhandara was studied on different food plants in the district of Chandrapur.
Results/Recommendations : Maximum adaptability of the food plants on Terminalia tomentosa (35.04%), Z. mauritiana (28.04%), L. parviflora (20.45%), C. spinosus (8.52%) and Terminalia aurjuna (7.95%). Sex wise association also revealed maximum adaptibility of Terminalia tomentosa with 37.37% of total males and 32.38% of total females. The difference in occurrence of male and female cocoons was highest in Z. mauritiana (6.67%) and minimum on Terminalia arjuna (1.25%) with mean difference of 3.58%. Maximum adoptability by preference of food plants were conferred for further research.
Source of Information :
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Project No.:CTR140
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Conservation of Andhra local eco-race in in situ condition.
Personnel :Jayparkash P
Project Period :1998-2003
Objectives :Survey was conducted in Nellore, Adilabad, Karimnagar, Warangal and Rangareddy district of Andhra Pradesh to study the demography of Andhra local eco-race.
Results/Recommendations :Population diversity was recorded at different ecopockets. A total of 4,211 Andhra local cocoons were collected. First season grainage behaviour studies were initiated with 1,882 cocoons. A total 358 couplings were obtained out of which 304 dfls were prepared. In second season out of 824 harvested cocoons, 264 couplings and 240 dfls were prepared. During third season out of 1421 harvested cocoons 326 couplings and 296 dfls were prepared.
Project outcome: A conservation strategy worked out from the studies conducted.
Source of Information :Annual Report:2002-03
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Project No.:CTR141
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Utilization of dead pupae obtained after reeling of tasar cocoons.
Personnel :Banerjee ND, Sinha USP, Srivastava PP, Sinha AK.
Project Period :1998-2002
Objectives :Biochemical analysis of tasar pupae and their metabolic trial on broiler birds.
Results/Recommendations :
· Biochemical analysis of tasar pupae (on dry powder basis) revealed protein, fats, minerals, carbohydrates and crude fibres are found at the ratio of 62-65%, 20-22%, 7-8%, 7-8%, and 6-7% respectively.
· Based on the above information diet formulations for broiler starter (0-5 weeks) and broiler finisher (6-8 weeks) have been proposed.
Source of Information :Annual Report: 2001-2002
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Project No.:CTR142
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Seed cocoon preservation in oak tasar silkworm.
Personnel :Biren Rana
Project Period :1998-2003
Objectives :To develop seed cocoon preservation schedules.
Results/Recommendations :
Temperature (°C)
Preservation period (Days)
Mulberry
Chinese
Katsuno
23
40
5
90
20
20
-
-
15
30
3
3
10
25
150
3
5
25
3
3
2.5
60
90
3
· Preservation of seed cocoons from spring to spring may be practiced at low altitude (785 in ASL) from June to January with minimum of stray emergence.
· Alternatively the cocoons may be safely preserved at cold storage with negligible stray emergence and least physiological deterioration of preserved pupae.
· Preservation of 2nd crop cocoons from November to January irrespective of altitudinal difference gives better performance in respect to check stray emergence and better grainage performance.
Source of Information :Annual Report:2002-03
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Project No.:CTR143
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Germplasm maintenance of Antheraea mylitta.
Personnel :Srivastava PK
Project Period :1998-2003
Objectives :To coduct an extensive survey in Vindhyachal and Bundelkhand regions of U.P for the collection of nature grown cocoons of Antheraea mylitta.
Results/Recommendations :Nine ecotypes viz., Daba (Bivoltine, Daba TV, Sukinda, Sarihan, Raily, Modal, Laria, Bhandara and Japla) four evolved lines (Nagri 1, Nagri 2, Nagri3, GE2) and three mutant lines (Blue, Yellow, Almond) were maintained in germplasm bank (GPB). Besides ecotype Anohra was also received from REC, Mulug which is unacclamatised. Performance of ecotypes evolved, inbred and mutant lines maintained in the GPB was evaluated for various biological and commercial characters.
Source of Information :
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Project No.:CTR144
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Maintenance of GPB of Sarihan ecorace, its multiplication and popularization amongst rearers.
Personnel :Sinha KK
Project Period :1998-2003
Objectives :Studies on conservation and research on crop stabilization and higher multiplication of ecotype Sarihan.
Results/Recommendations :
· During all the three grainage operations a total of 47,528 seeds cocoons were processed from which 7,781 dfls were prepared. Out of these 3,226 dfls were supplied to tasar farmers for popularization of ecoraces, remaining 4,555 dfls were utilized for own rearing. A total of 4555 dfls were reared during I, II and III crop and a total of 85,393 cocoons were harvested. Third crop was preserved.
· With this research crop stabilisation and higher multiplication can be maintained among the rearers.
Source of Information :
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Project No.:CTR145
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on hormonal regulation of diapause and voltinism in Antheraea mylitta.
Personnel :Dinesh Kumar
Project Period :1998-2006
Objectives :To understand the reasons for unseasonal emergence of tasar silkworm moths and to generate information on role of hormones in maintenance and termination of diapause.
Results/Recommendations :In NDD pupae, high PF rich NSCs in brain during day 0, 1 and 2 were observed and low PF material cells were recorded on day 3 and 4. Lateral neurosecretary cells were seen in day 3 and 4 in NDD pupae indicating its role in development of adults. In case of diapausing pupae high PF rich NSCs were observed in day 0, 10, 30, 40, 50, 60, 110, 130, 140, 150, 160, 170, 180 and 190. Cells with medium intensity PF material were observed on day 20, 40, 50, 60, 70, 80, 90, 120, 130, 140, 150 and thereafter on day 200, 210 and 220. Low intensity PF positive cells were recorded only within200 to 220 days old diapausing pupae.
Source of Information :Annual Report:2005-06
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Project No.:CTR146
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Conservation of Raily ecorace of Antheraea mylitta Drury.
Personnel :Pande VK, Mahobia GP, Rao KVS
Project Period :1999-2001
Objectives :
· Demographic studies of Raily in its natural habitat, their preservation and evaluation.
· Grainage behaviour and viability of Raily ecorace in in situ and ex situ condition.
· Multiplication of Raily through (IPR) integrated package rearing.
Results/Recommendations :
· Cocoons were collected from seven ecopockets and observation was recorded from 100 cocoons. Diapausing Raily seed cocoons was preserved in situ (Pagoda) and ex situ conditions resulting in preservation of 75.83% against 34.67%. In situ grainage resulted in 4:1 and 5:1 cocoon dfl ratio in I and II crops 2001 whereas in captive condition the ratio was 14:1 and 17:1. In case of rearing in situ rearing was superior to the control rearing.
· IPR results for different parameters were marginally better than the control rearing but the difference was only marginal and commercial characters were far inferior than the cocoons harvested from conventional methods.
Source of Information :Annual Report:2001-2002
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Project No.:CTR147
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Development of integrated package for seed cocoon preservation and seed production in tropical tasar silkworm Antheraea mylitta D.
Personnel :Raj Narain, Rath SS, Nagendra S, Prasad BC
Project Period :2001-02
Objectives :Effect of seed cocoon selection on preservation and grainage efficiency and efficiency of cooling device on preservation and seed cocoons, use of nylon net for enhancing mating percentage and studies on large scale testing of egg laying tray.
Results/Recommendations :
· The preservation loss recorded in control lot was 28.71% in TV whereas after adoption of seed cocoon selection, it came down to 4.26%. The mating percentage in control was 52% which increased to 92.2% in plastic egg laying trays with ten cavities was tested for large scale use. The package enhanced the dfl production to 29,312 dfls as against 17,822 dfls in BV and 29,485 dfl against 16,269 dfl in TV.
· An integrated package was developed for seed cocoon preservation and seed production in tropic tasar silkworm Antheraea mylitta. The application of the package reduces cocoon loss to 6.27% in bivoltine and 4.26% in TV variety.
Source of Information :Annual Report:2001-2002
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Project No.:CTR148
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Histochemical studies on diapausing and non-diapausing generations of tropical tasar silkworm Antheraea mylitta Drury (Lepidoptera:Saturnidae).
Personnel :Sharan SK, Panday PN
Project Period :2003-2005
Objectives :To find out differences in detailed structure of haemolymph and important biochemicals of haemolymph of Antheraea mylitta (tropical tasar silkworm) between diapausing and non-diapausing generations.
Results/Recommendations :
· The radical difference was detected between non-diapausing and diapausing generations of Antheraea mylitta.
· Storage proteins seems to regulate the diapause.
· The results of the thesis can be utilized for studying detail pathology of tasar silkworm infected with pebrine, bacterial and viral disease.
· Study on diapausing proteins are required for solving problems of seed (egg) production in Antheraea mylitta.
Source of Information :Ph.D thesis, Ranchi University
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Project No.:CTR149
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the voltinism of Antheraea mylitta with reference to latitude gradient and photoperiod.
Personnel :Singh BMK, Sharan SK, Mishra PK, Dinesh Kumar, Tiwari SK, Sharma KK, Rama Rao Majumdar, Roy GC, Sinha RB
Project Period :2001-2005
Objectives :To record the influence of prevailing photoperiod and temperature on voltinism behaviour of Antheraea mylitta D.
Results/Recommendations :At Ramapachodavaram (A.P.) - all lots are trivoltines.
· Lakha (C.G.) – Bivoltine
· Ranchi (Jharkhand) – Bivoltine
· Kathikund – Bivoltine (43%)
· Minimum temperature plays a determining role for programming this species to enter in to diapause.
· Contribution of temperature and latitude are almost alike.
· Cumulative contribution of altitude, latitude, minimum and maximum temperature, photoperiod and larval duration enhance the diapause percentage.
Source of Information :Annual Report :2004-05
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Project No.:CTR150
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Isolation and purification of Sarihan eco-race of Antheraea mylitta D.
Personnel :Sinha KK
Project Period :2002-2006
Objectives : Survey of different ecopockets of Dumka district was done to collect nature grown Sarihan cocoons.
Results/Recommendations :
· From Durgapur, Shikaripara, Godda and Asanbani ecopockets 400, 750, 650 and 240 (2040) cocoons were collected respectively. These cocoons were processed for seed preparation and prepared 16, 20, 18 and 6 dfls respectively. These dfls were reared, but only 223 cocoons were found due to heavy mortality during 1st crop. During 2nd crop 390 cocoons were purchased and subjected to seed preparation resulting in 508 cocoons. During 3rd crop out of 452 seed cocoons –3470 cocoons harvested.
· First crop grainage performance of cocoons collected from different places was very poor with cocoon dfl ratio 34:1 in comparison to second (6.72:1) and third crop (8.69:1).
· First crop rearing was very poor and hence work was started in IInd crop afresh.
· Yield of cocoons per dfl in 2nd crop was 8.75 cocoons whereas it was 66.73 druing 3rd crop.
· Sarihan characteristic cocoon is very poor.
Source of Information :Annual Report:2005-06
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Project No.:CTR151
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Eco-friendly control of viral disease in tasar silkworm.
Personnel :Singh GP
Project Period :2002-2005
Objectives :To know the antiviral action of plant extracts against Antheraea mylitta cytoplasmic polyhedrosis virus (AmCPV) infection in tasar silkworm.
Results/Recommendations :
· It was recorded that all the plants tested were effective in suppressing the virosis to certain extent. However, with the treatment of two plants extract (P22 and P25) the larval mortality was less than 35% while control has 90% mortality.
· Among the 8 plant species only three plant extracts (P1, P6 and P10) were found more effective of 3-4% concentration in suppression of virus infection to the tune of 70%.
Source of Information :Annual Report:2003-04
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Project No.:CTR152
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Exploration, collection, characterization and the commercialization of oak feed Antheraea species in north-east India.
Personnel :Singh NI
Project Period :2003-2006
Objectives :To conduct survey and exploration in different oak growing areas of North-East India.
Results/Recommendations :
· 52 cocoons of Antheraea roylei could be collected and 50,800 cocoons of Antheraea frithii were conducted during Sep-Oct 2003. From collected cocoons 4 dfls of Antheraea roylei were prepared during spring crop 2003. During April to May 600 dfls of Antheraea frithii were prepared.
· Antheraea proylei was available in a very thin and scattered population in Arunachal Pradesh, Meghalaya, Manipur, Nagaland while Antheraea frithii was available in large population in Manipur.
Source of Information :Annual Report:2005-06
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Project No.:CTR153
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Screening, characterization and identification of disease tolerant varieties in tropical tasar silkworm Antheraea mylitta.
Personnel :Niranjan Kumar
Project Period :2003-2006
Objectives :To find out disease tolerant variety from well distinguishable ecoraces belonging to different ecopockets. Accordingly it is planned to identify disease tolerant variety through LC50 determination and biochemical and physiological characterization.
Results/Recommendations :
· Antheraea mylitta cytoplasmic polyhedrosis virus (AmCPV) was extracted from diseased worm, systematically centrifuged from purification stock culture was prepared and stored. The required density of polyhedral inoculum per ml (2.5 x 102, 2.5 x 103, 2.5 x 104, 5 x 102, 5 x 103, 5 x 104) was prepared from the stock culture to inoculate silkworm.
· The LC50 values indicated that Raily was highly susceptible and Daba has shown tolerance where as Sarihan has indicated intermediate status of tolerance.
v First crop Daba > Sarihan > Raily.
v Second crop Daba > Sarihan.
v Third crop Sarihan > Sukinda > Bhandara > Andhra local.
v Over all of tolerance Daba > Sarihan > Sukinda > Bhandara > Andhra local > Raily.
Source of Information :Annual Report:2003-04
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Project No.:CTR154
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Selection of superior genotypes of Quercus species on the basis of growth and bioassay studies.
Personnel :Srivastava PK
Project Period :2003-2006
Objectives :Exploration were conducted in REC-Kikruma, REC-Yaikongpao, field laboratory T. Khullen and RTRS Mantripokhri, Langol and Imphal.
Results/Recommendations :
· The mean growth over 50 days was found to be 2.4, 2.2, 1.52, 1.89, 2.04, 1.37 and 2.27 cm in the branches of A, B, C, D, E, F and G genotypes of Quercus acutissima.
· Fast growing nature of A, G, B and E in descending order of Quercus species.
Source of Information :Annual Report:2003-04
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Project No.:CTR155
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on impact of temperature on male fertility in Antheraea mylitta D.
Personnel :Rathi SS
Project Period :2003-2005
Objectives :To study male fertility status in relation to temperature in Antheraea mylitta D.
Results/Recommendations :
· Pupal mortality significantly increased when exposed to 35°C to 4-5 hr/day during 1st crop and 3-5 hr/day during 2nd crop. The total eupyrene count in female reproductive organs, spermatheca and bursa copulatrix declined significantly at 37°C during 1st crop and in all treatments at 35°C and 37°C during II crop grainage. It was observed that a decline of 20% in eupyrene sperm count led to significant decline in hatching percentage.
· The results revealed that after 8 hours of mating 74.7% to 77.3% of total sperms ejaculated in to the body of female moth is available in the spermatheca.
Source of Information :Annual Report:2005-06
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Project No.:CTR156
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Screening, characterization and identification of disease tolerant varieties in tropical tasar silkworm Antheraea mylitta D.
Project Period :2003-2006
Objectives :To screen ecoraces of Antheraea mylitta for disease tolerance, characterize and identify the donors for development of tolerant breeds.
Results/Recommendations :
· The LC50 value of major ecoraces was Daba DV 883.4853, Daba TV 720.0217, Sarihan 326.8580, Sukinda 925.8783, Modal 1415.3348 and Raily 109.22.
· Based on repeated observation and LC50 values, the ecoraces can be grouped as Tolerant-Modal, Sukinda, Daba-BV, Medium tolerant-Sarihan, Daba TV, Bhandara, Andhra races and Susceptible-Raily.
Source of Information :Annual Report:2005-06
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Project No.:CTR157
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Characterization of gut microflora of Antheraea mylitta and studies on the pathogenicity for developing therapeutic and biological control against bacterial diseases.
Personnel :Roy DK, Alok Sahay, Singh GP, Sahay DN, Sinha BRRP
Project Period :2003-2006
Objectives :To identify the bacteria and to develop therapeutic and biological control against bacterial diseases.
Results/Recommendations :Five types of bacteria found are: Bacillus, Pseudomonas, Enterobactor, Staphylococcus and Citrobactor sp.
Control :Antibiotic formulations : Histocyclin (tetracycline), Penicillin and Levofloxacin.
Botanicals : Bhumiamla, Kalmegh and Bhringraj.
Histocyclin has been preferred than penicillin because of its easy availability.
Source of Information :Annual Report :2005-06
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Tasar Post cocoon Technology
Project No.:CTR158
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Designing and fabrication of prototype of improved reeling machine.
Project Period :1968-69
Objectives :To design a suitable prototype for manufacture of the improve type of reeling machine.
Results/Recommendations :The prototype of the improved type of reeling machine with only two spindles has already been designed and fabricated. The new device ensures uniform twist. In addition, uniform denier is also ensured due to automatic control device. The prototype is power drive.
Source of Information :Annual Report: 1968-69
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Project No.:CTR159
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Mass reeling studies on Bogai cocoons.
Personnel :Sonwalker TN, Jolly MS, Majhi SK, Lamba PS
Project Period :1976-1978
Objectives :To find out suitability of Biopril-50 for cooking and soaking for Bogai cocoons.
Results/Recommendations :
· Cooking/softening technique with Biopril-50 gives very good results for reeling Bogai cocoons.
· CTRS improved reeling machine, gives better reeling performance than other modified Trivedi reeling machines.
Source of Information :Annual Report :1977-78
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Project No.:CTR160
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Comparative reeling studies of Antheraea proylei cocoons reared/spun indoor and outdoor.
Personnel :Sonwalker TN, Jolly MS, Majhi SK, Lamba PS
Project Period :1976-77
Objectives :To find out the comparative reeling performance of Antheraea proylei cocoons reared/spun in indoor and outdoor conditions.
Results/Recommendations :From the data, it is evident that there is a significant difference between the two lots of cocoons in the average length of filament, average non-breakable filament length per cocoon and denier which indicates that the rearing and spinning of cocoons in indoor condition produce better quality cocoons for reeling.
Source of Information :Annual Report :1976-77
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Project No.:CTR161
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on reeling of old (2-4 yrs) mixed Daba cocoons.
Personnel :Sonwalker TN, Jolly MS, Majhi SK, Lamba PS
Project Period :1976-1977
Objectives :To soften the sericin by using Biopril-50 age and mixing of cocoons of different sizes on reeling performance.
Results/Recommendations :Reeling results obtained were quite satisfactory even though the cocoons were quite old and of different sizes, thereby making it a heterogenous lot.
Reelability in particular was found to be high indicating that the improved cooking technique (Biopril-50 soaking) was highly effective on very old cocoons.
Source of Information :Annual Report :1976-77
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Project No.:CTR162
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Fabrication of new CTRS improved reeling machine.
Personnel :Sonwalker TN, Jolly MS, Majhi SK, Lamba PS
Project Period :1976-78
Objectives :To make the machine light in pedaling and smooth in running.
Results/Recommendations :The reeling performance was very encouraging, the average production/8 hrs being 403 g and reelability was 64.3%. It is noteworthy that the average length comes to the tune of 7976 m which is quite high for 56.73. It indicates that high speed of reeling can be maintained by the reeler on account of improved working of the machine.
The new CTRS Improved reeling machine is light to pedal and the reeler can work continuously for 8 hrs (with break after 4 hrs) without any strain.
The reeling performance is better in all respects, particularly the production/8 hr and length reeled/hr.
Source of Information :Annual Report :1977-78
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Project No.:CTR163
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on standardization and marketing of tasar silk yarn.
Personnel :Ghosh SS, Mazumdar MK, Pal AK
Project Period :1979-82
Objectives :To develop tasar silk yarn standardization methods for marketing.
Results/Recommendations :
· Total number of cocoon utilized for reeling are 1,04,360 and total silk production was 68.95 kg raw silk production varies from 52-55% and average recovery for 1000 cocoons is 0.773 kg and 0.641 kg respectively.
· From the above project it can be revealed that there is a vast scope for establishment as well as expansion of tasar yarn markets in India if standard quality of yarn is produced and supplied.
Source of Information :Annual Report:1982-83
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Project No.:CTR164
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on reeling of finer denier tasar silk.
Personnel :Ghosh SS, Roy S, Sengupta S
Project Period :1981-83
Objectives :To develop the use of tasar yarn for production of dress material of finer varieties for large scale home consumption. An attempt was made to reel finer varieties of tasar silk ranging from 23 to 50D followed by weaving warp x weft 30D x 23D, 30D x 30D, 30D x 40D and 30 x 50D.
Results/Recommendations :The technological test results reveals that the raw silk reeled even with 2 cocoon/end only have the tenacity (g/d), elongation % TPI and CV% for size variation similar to that of the control i.e., 6 cocoons/end reeling. The character which shows increase with the increase in number of cocoons/end is the breaking load/thread. The breaking load recorded for the reeling with two cocoons/end just touch the minimum level of allowance for the weaving and therefore indicated the difficulties in mass scale weaving.
Source of Information :Annual Report:1982-83
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Project No.:CTR165
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on preservation of pre-cooked and pre-steamed cocoons.
Personnel :Ghosh SS, Sengupta D, Roy S
Project Period :1981-82
Objectives :To find out the reeling performance of cooked and semi-cooked cocoons preserved for different durations as well as to study technological characters of reeled silk extracted from the same cocoons.
Results/Recommendations :
· Cooking efficiency in all the combinations are above 80%. In control as well as in combination it is above 90% which indicates that there is no significant difference in cooking efficiency among all the treatmental combinations.
· There is no significant difference in cocoon cooking efficiency among all the treatment combinations.
Source of Information :Annual Report:1981-82
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Project No.:CTR166
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on twisting of raw tasar silk on silk throwing plant.
Personnel :Roy S, Ghosh SS, Paul TK
Project Period :1982-1984
Objectives :To know the feasibility and efficiency of silk throwing process/plant for tasar raw silk.
Results/Recommendations :The studies reveal that twisting of tasar raw silk can be done on silk throwing plant without any difficulty it is possible to prepare various kinds of tasar thrown silk like crepe, organzine, georgette, tram etc., for various diversified tasar fabric production.
Source of Information :Annual Report: 1983-84
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Project No.:CTR167
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Study of cooking in tasar peduncle.
Personnel :Ghosh SS, Mitra G, Mazumdar MK
Project Period :1985-86
Objectives :To get more cooking efficiency and for better spinning performance on new model charka set.
Results/Recommendations :
· Boiling of tasar peduncle in 2% soap and 6% soda for 60 minutes. The material was steamed to 60 minutes at 15 lbs per square inch pressure in a pressure vessel followed by soaking up solution of Biopril-50 at 2 gms/litre of water (45°C) for overnight.
· The technique (B) [Boiling of raw peduncle in a solution containing 2% soap and 6% soda (in the weight of the material cooked). Then boiling again I plain water at 15 lbs/square inch pressure for 60 minutes. The material were then soaked in a solution of Bio-pril-50 containing 2 gms/litre water initially at 45°C, then thoroughly washed and dried in the shade] after cooking is only 12.77%. The cooking loss% is also highest (36.2%). The spinning performance in technique (B) is also best among the three treatments] is most effective for cooking peduncle.
Source of Information :Annual Report:1985-86
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Project No.:CTR168
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on processing of tasar silk.
Personnel :Subrata Das, Chowdhary SK
Project Period :1986-87
Objectives :Optimisation of single stage scouring and bleaching of tasar silk. Making of tasar silk more absorbent as well as fit for dyeing and printing by undertaking scouring and bleaching processes.
Results/Recommendations :
· The data reveals that pH values of scouring solutions, the weight loss increase with the increase in temperature. However, the wetting time is reduced with the increase of temperature except in the solution with a pH of 9.5.
· In case of bleaching the weight loss as well as wetting time was observed to decrease with the increase in temperature of solution.
Source of Information :Annual Report:1986-87
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Project No.:CTR169
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on blending of tasar silk-Blending of tasar fibre with other natural and synthetic fibres in Khadi system.
Personnel :Majhi SK, Sivakumr M, Moon MA
Project Period :1987-90
Objectives :
· To achieve diversification in utilization of tasar waste.
· To study the effect of blend composition on tasar fabric properties particularly crease recovery property and to suggest suitable tasar blends for better marketing.
Results/Recommendations :Results indicate that blending of oak tasar fibre with cotton and polyester is quite feasible. It also indicates that the higher ratio of silk waste lowers the processing performance. It is experienced that blending with polyester is easier than those with cotton and give better performance. Lower humidity and temperature (below 60% and 25°C) affects the processing
Source of Information :Annual Report :1989-90
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Project No.:CTR170
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on reeling of tropical tasar cocoons with adhesive to increase cohesion.
Personnel :Choudhury SK, Subrata Das
Project Period :1987-89
Objectives :To introduce certain modifications in the present system of reeling to produce raw silk with better cohesion and winding quality.
Results/Recommendations :Results reveal that the combination of 1% PVA and 0.5% vegetable tallow has given maximum cohesion property (67.33) followed by 1% seres gum (33.33) as against only 3.66 in the control. It is further seen that the increase in the concentration of the adhesives has resulted in the decrease of cohesion property. It is interesting to note that the combining of the component filaments with gum has significantly increased the tenacity registering 2.20 g/d to 2.84 g/d in the reeled yarn with different gums as against 1.65 g/d in the control.
Source of Information :Annual Report :1988-89
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Project No.:CTR171
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Fabrication of a composite machine for reeling, twisting, winding, doubling and hank formation.
Project Period :1987-88
Objectives :To fabricate a composite machine.
Results/Recommendations :A hollow aluminium roller of 2” long x 4” dia has been filled in a place of wooden delivery roller.
Mechanical provision was made to carry four number of small aluminium roller of 2” dia x 3½” long each on brackets and rest over the surface of 2’ long aluminium roller to make the small roller rotate as and when they will come in contact with large aluminium roller. The threads under reeling are made to pass in between small and large aluminium roller to impart better grip on the yarn which eliminates slippage of yarn and facilitates accommodation of more twist in comparatively small length of yarn to increase tpi.
To make more accommodation of reeled yarn on the bobbin/different modification in the movement of ring rail has been brought by providing a hearticam in place of crank.
In the CTRS reeling machine thread guide are stationary fitted above the top of the spindle. In the new machine the same set of thread guide was fitted with a traverse mechanism so as to move the thread guide set to fro horizontally while reeled yarn of new machine does not require further twisting for the same purpose, which evidently indicates that use of the new machine for production of warp yarn is economical and convenient. Besides due to incorporation of other gadgets like winding, doubling, hanking etc., the machine has proved to be more helpful in the industry.
Source of Information :Annual Report :1987-88
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Project No.:CTR172
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the utilization of wild tasar cocoons (cut) received from Botswana, South Africa.
Project Period : 1987-88
Objectives :To find out suitable technique for spinning.
Results/Recommendations :
Boil-off loss: Boil-off loss was observed to about 51% of shell weight, which is excessively high as compared to that as obtained in tropical tasar.
Spinning performance on spinning wheel : On account of large percentage of short fibres in the degummed mass, the spinning was halty and the quality of yarn was not uniform.
Spinning performance of waste blended with cotton on Ambar charka :Owing to the presence of high percentage of short fibres, the drafting between the draft roller in the preparatory machines as also on Ambar charka was not uniform. As a result the yarn spun was disuniform and lacking strength.
Source of Information :Annual Report :1987-88
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Project No.:CTR173
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Evolution of suitable method of cooking and reeling of tasar cocoons on wet basin.
Personnel :Subrata Das, Choudhury SK
Project Period :1987-89
Objectives :
· To introduce more perfections in cooking and reeling technique.
· To find out the behavior of different grades and colour of Daba cocoons towards wet reeling.
Results/Recommendations :The results indicate that sorted fresh grey cocoons have given better reeling performance in comparison to others. As far as technological properties are concerned highly significant results have been in all technological properties considered viz., tenacity, cohesion, evenness, neatness and cleanness in case of wet reeling where third treatment (boiling in 1% soap + 1% sunlight soap for 3 mins. followed by reeling in water at 70-80°C) has been applied.
Source of Information :Annual Report :1988-89
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Project No.:CTR174
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on the constituents of cocoon shells of Antheraea proylei J reared on different food plants.
Personnel :Sinha AK, Sinha USP, Brahmachari BN
Project Period :1987-88
Objectives :Analysis of constituents viz., moisture, boil-off loss, total nitrogen and total minerals in the cocoon shells of Antheraea proylei reared on three food plants namely, Quercus semicarpifolia, Quercus serrata and Quercus incana.
Results/Recommendations :It can be concluded that tasar cocoons reared on Q. semicarpifolia is better than the food plants Q. incana and Q. serrata as the former one contains low percentage of boil-off loss and total minerals and high percentage of total nitrogen.
Source of Information :Annual Report :1987-88
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Project No.:CTR175
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Fabrication of a composite machine for reeling and post reeling yarn preparation.
Personnel :Chowdhary SK, Kar NB
Project Period :1987-88
Objectives :To prepare reeled yarn with sufficient amount of twist so as to feeds the same as warp in weaving without undergoing any separate operation and to perform other necessary yarn processing works like doubling, twisting, hanking etc., in the same machine.
Results/Recommendations :
· The composite machine has efficiently produced 166.99 gm and 217.5 gm reeled yarn per 8 hrs with 10.9 and 7.7 TPI respectively. The corresponding figures for CTRS reeling machine (control) was found to be 262.5 gm/8hrs with only 2.65 TPI. 7.5 mandays are required to get 1kg of single twisted yarn as against 6.5 and 5.1 mandays in composite machine.
· However, during the course of trial the composite machine showed some drawbacks in regard to the position of crossbars of hanking reels.
Source of Information :Annual Report:1987-88
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Project No.:CTR176
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Weaving of tasar fabrics-Studies on preparatory processes of tasar silk yarn for weaving.
Personnel :Majhi SK, Sivakumar M, Moon MA
Project Period :1988-90
Objectives :To evolve suitable preparatory technology for tasar silk yarn to weaving.
Results/Recommendations :The performance of hank sizing is superior as compared to the performance of single end sizing in respect of production of the fabric per 8 hours. Further, the performance of semi-automatic Chittaranjan Loom was superior to that of fly shuttle frame loom. However, it was observed that the hank sizing of tasar silk cumbersome and requires more time and result in entanglement of fibres. It was also observed that waste percentage (3.68%) in preparatory process was higher in comparison to single end sizing (1.62%).
Source of Information :Annual Report :1989-90
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Project No.:CTR177
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Weaving of tasar fabrics-Comparative studies on weaving performance of thigh reeled Vs CTRS m/c reeled silk.
Personnel :Majhi SK, Sivakumar M, Moon MA
Project Period :1988-1990
Objectives :Comparative evaluation of the quality of thigh reeled and CTRS machine reeled yarn in respect of their weaving performance.
Results/Recommendations :The results indicate that weaving performance of machine reeled yarn is better than the thigh reeled yarn where production stands at 0.49 mts/8 hrs as against 0.44 mts/8 hrs in thigh reeled yarn. However, overall performance of both types of yarn was found to be unsatisfactory which may be due to arrow root starch sizing.
Source of Information :Annual Report :1989-90
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Project No.:CTR178
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Wet processing of tasar silk-Degumming of tasar silk.
Project Period :1989-90
Objectives :To evolve suitable degumming recipe which can make silk soft and improve its lustre.
Results/Recommendations :
· Degumming results show that oak silk produced under biopril-50 methods stands 5.21%-6.4%.
· Degumming loss under soap treatment is higher in comparison to other treatments.
Source of Information :Annual Report:1989-90
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Project No.:CTR179
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on stifling of tropical tasar cocoons.
Personnel :Chowdhury SK, Banerjee ND, Kar NB
Project Period :1989-90
Objectives :To know whether the hot air drying technique can be utilized for tasar cocoons and also to compare it with other techniques vis a vis their impact on reeling quality.
Results/Recommendations :Results revealed that the cocoons of the treatments of T2 (drying at descending temperature), T3 (30 mins steaming followed by sun drying), T5 (30 mins steaming followed by hot air drying) and T6 (Hot air drying at 80°C) have attained complete dryness. Among the above treatments the minimum duration (9 hrs) has been taken for complete drying in case of hot air drying at descending temperature. It can be further observed that wherever hot air drying is there, the duration needed for drying has shortened considerably.
The reeling performance of the cocoons under treatments T2, T5 and T6 is almost identical, which indicates that difference in drying techniques has no effect on the reelability of the cocoons.
Source of Information :Annual Report :1989-90
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Project No.:CTR180
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on suitable cooking and reeling technique in tropical tasar (Fabrication of reeling machine).
Personnel :Moon MA, Hukkeri SM, Sengupta D, Mahesh MG, Natraj RS
Project Period :1990-1997
Objectives :To evolve efficient and economically viable reeling machine (technique) with easy operations, suitable for rural people.
Results/Recommendations :
· During designing of suitable heating cabinet for reeling successful results towards field application was not achieved.
· For reeling tasar cocoons cooked with H2O2 + soap (usually sunlight soap).
Project outcome :Hand operated tasar reeling charkha
Source of Information :
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Project No.:CTR181
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on suitable cooking and reeling technique for tropical tasar.
Personnel :Moon MA, Hukkeri SM, Sengupta D
Project Period :1996-97
Objectives :
· Identification of substitute for biopril-50 for dry reeling.
· To find out superior quality of tasar yield yarn by wet reeling.
· Fabrication of reeling machine.
Results/Recommendations :For confirmation of results for field application and standardization of the work done so far on cooking with enzyme of papaya extracts, the experiment is being taken by CSTRI, Bangalore. The mass reeling of tasar cocoon shows 5-8% gain in recovery, 5-10% improvement in cooking, efficiency and increase of 0.6 gm/denier in tenacity.
Source of Information :Annual Report:1996-97
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Project No.:CTR182
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Mechanical processing of tasar silk and its blends.
Personnel :Moon MA, Sengupta D, Hukkeri SM
Project Period :1996-97
Objectives :Studies on weaving of composite tasar fabric and effects of blend composition and fabric set, on mechanical properties of tasar union/blended fabrics.
Results/Recommendations :
· With an intension of diversifying the tasar fabric six different sorts of tasar fabrics using different combinations in warp and weft were produced. Among which fabric produced by combination of wet reeled yarn and twisted yarn has resulted in an improved texture.
· Training was provided to RSDTCs officials.
Source of Information :Annual Report:1996-97
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Project No.:CTR183
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on application of lac dyes on tasar silk.
Project Period :2003-2006
Objectives :To study lac dyes on tasar silk.
Results/Recommendations :
· Thirty meters of tasar silk fabrics were dyed with lac dye using different mordants namely Potassium dichromate, Copper sulphate, Tin chloride, Alum, Potassium permanganate and Oxalic acid.
· Fifteen different colours and shades were obtained by the above process of lac dyeing with different mordants and were tested for washing, rubbing, perspiration and light and the results were satisfactory.
Source of Information :Annual Report:2004-05
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Project No.:CTR184
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Studies on core spinning of tasar silk.
Personnel :Ghosh SS, Khan ZMS, Suresh Rai, Sinha BRRP
Project Period :2003-2005
Objectives :To develop technology for core spinning on new model charkha (NMC), Khadi charkha as well on motorized spinning machine after requisite modifications.
Results/Recommendations :
· It was found that the test pieces of single twisted x mercerised cotton and single twisted x jute were found better than others in NMC group. Both got five quality test credit points and were cheaper than others.
· New model charkha is comparatively better than Khadi charkha for spinning.
Project outcome :New model Charkha modified KVIC Ambar charkha developed.
Source of Information :Annual Report :2004-05
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Extension
Project No.:CTR185
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Socio-economic studies of tasar industry in Orissa with special reference to women participation.
Personnel :Brahmachari BN, Susch Rai, Satyabrat Dey and Sinha BRRP
Project Period :2001-02
Objectives :
· Socio-economic survey of research at Mayurbhanj district in Orissa.
· Socio-economic survey of rearers and weavers.
Results/Recommendations :
· About 300 tasar silkworm rearers were interviewed in which women do not take active part 52% rearers are literate, 92% rearers raise tasar crop in nature grown, 5% interstate tasar plantation, 2% on own plantation. On average they earn 3118/crop from 200 dfls with 23 cocoon/dfl. 52% do only weaving, 37% did both reeling and weaving and rest 11% only reeling.
· The problems faced as reported by reelers and weavers included items like paucity of reeling cocoon and lack of finance for purchase of cocoons, yarns and also for value addition in fabrics as well as exploitation of traders.
Source of Information :Annual Report:2001-2002
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Project No.:CTR186
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Socio-economic studies of tasar industry in orissa.
Personnel :Brahmachari BN
Project Period :2002-2004
Objectives :Socio-economic information recorded from 150 rearers in Sudesgarh district (Orissa) was compiled.
Results/Recommendations :
· It was found that 72% tasar silkworm rearers belong to ST category. 46% rearers to literate, 57% rearers have got land holding of size 2.51-7.50 acres. On an average family rears 350 dfls annually and earn Rs.8455.00. Tasar contribute 19% of their total annual income of Rs.44500.00.
· Tasar silk rearers need to be educated for the protection and maintenance of tasar food plants, adoption of improved rearing technology and control measures against attack of pests and disease.
Source of Information :Annual Report:2003-04
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Project No.:
Organization :Modal (A tropical Tasar Ecorace) Ecorace Conservation Project Baripada, Mayurbhanj, Orissa.
Project Title :“Modal Eco-race Conservation Project” for in situ conservation of the wild eco-race in its natural habitat.
Personnel :
Funding source: CSB
Project Period : 2001-2006
Objectives :
· To protect and maintain the essential tasar fauna.
· To preserve the existing wild eco race Modal in its natural habitat i.e., in situ conservation.
· To ensure sustainable utilization of the species.
· Multiplication of the species in its natural environment.
· Motivation of the fellow rearers, wild tasar collectors not to hand over the wild tasar seed cocoons to private party for reeling.
Results/Recommendations :
· Production of Bagai tasar (Sibling of Modal) rises from 8.02 lakhs to 47.39 lakhs.
· Modal tasar (seed cocoon) utilization by farmers reaches 3.402 lakhs which was 1.528 lakhs before starting of project.
· No. of farmers involved in Modal tasar preservation and commercial cultivation rises from 559 nos. to 1993 nos.
· There is considerable rise in the natural wild ecorace population in the area of operation.
· “Deforestation of Sal vegetation” checked a bit as per remote sensing report.
· “Farmers affinity towards the culture rejuvenate” which is confirmed from tasar production figure of the district.
· The project needs to be continued as regular programme of conservation. This will increase the earning of tribals inhabiting the remote area.
· Since impact assessment is difficult with the existing system, it is proposed to identify approachable forest patches for release of eggs and direct assessment.
· The State Govt. Seri Department and Forest Department has to take up conservation and seed procurement works with coordinated efforts.
· It is essential to keep sizeable portion of the forest as collection free zone so that spontaneous rejuvenation continues.
· The operation area is remote and malaria prone without having civil facilities. So field workers needs to be provided with the transport and Medical facilities.
Project Outcome :
· Natural process of disinfection of eggs with herbal product.
· “Pagoda” type temporary “Silkworm (wild) Grainage”.
Remarks :“The Modal Ecorace Conservation Project” needs to be continued as regular programme of conservation, which will definitely increase the earning of the poor tribals inhabiting in the remote area which in turn will enhance the socio-economic status of tribals of Mayurbhanj (Orissa).
Source of Information :From the authors
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Project with incomplete information
Project No.:CTR187
Organization :Central Tasar Research and Training Institute, Ranchi
Project Title :Dosage-sensitivity relationship of alkaloid treatments (Polyploidising agent).
Personnel :Ghanshyam, Agarwal HV, Sen SK
Project Period :1973-1978
Objectives :To overcome interspecific hybrid sterility through amphidiploidy technique.
Results/Recommendations :Uptill now the experiment to induce polyploidy with Colchicine has not yielded any positive result. As such the project has been discontinued and will be tried later on with other techniques and chemicals.
Source of Information :Annual Report :1977-78
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