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Sherwan Ismail Towfiq and Shang Haseeb Abdulqader Noori
University of Sulaimani - Faculty of Agricultural Sciences – Sulaimani – Iraqi Kurdistan Region
DOI: https://doi.org/10.17656/jzs.10452
Abstract
This investigation was conducted during the growing season of 2009-2010, at
two different locations (Qlyasan Agriculture Research Station, College of Agricultural
sciences- University of Sulaimani, and farm land in Dukan), using split-split plots design
in RCBD with four riplications. Four common wheat varieties of different origins (Araz,
Tamuz, Rabea'a, and Cham-4) were used grown and implemented in the main plots. Four
seeding rates of (120, 160, 200, and 240) kg/ ha implemented in the sub-plots as the
second factor, while four leaf and awn removal treatments as the third factor were
implemented in the sub-sub plots that were (control, flag leaf blade removal, awns
removal, and flag leaf blade + awns removal). Grain yield with some of its components were
measured such as number of spikes/ m 2 , spike weight/ m 2 , spike length, number of spikelets/ spike,
number of grain/ spike, grain weight/ spike, 1000- grain weight, and grain yield). Data on biological yield
and harvest index were also recorded. The results of grain yield and its components with biological yield, and harvest
index can be summarized as the average of both locations as follows: the effect of varieties on these characteristics
was highly significant, Araz variety showed maximum values for the characteristics: number of spikes/ m 2 ,
spike weight/ m 2 , average spike length, and harvest index. Tamuz variety exhibited maximum number of spikelets/ spike,
and grain number/ spike, while Rabea'a variety showed maximum values for the characteristics: grains weight/ spike,
1000- grains weight, grain yield, and biological yield. However, Tamuz variety produced minimum values for the characteristics;
spike weight/ m 2 , grain weight/ spike, 1000- grains weight, grain yield, biological yield, and harvest index. The effect of seeding rates
on yield characteristics and its components as the average of both locations was highly significant on number of spike / m 2 , spike
weight/ m 2 , grain yield, and biological yield only, using the seed rate of 240 kg/ ha exhibited maximum values for these characteristics,
while 120 kg/ ha seeding rate showed minimum values in number of spikes / m 2 , grain yield, and biological yield.
Regarding the effect of removal treatments on yield characteristics, and its components as the average of both locations,
the characteristics, number of spikes/ m 2 , spike weight/ m 2 , grain weight/ spike, 1000- grains weight, grain yield, and biological
yield highly significant responded to these effects. While the characteristics number of spikelets/ spike, significantly responded,
and the characteristics average spike length, number of grains/ spike, and harvest index showed no significant respons. The control
treatments produced maximum values of yield and its components, while removing both flag leaf blade + awn showed minimum
values in spike weight/ m 2 , grains weight/ spike, 1000- grains weight, and grain yield.
Key Words:
Wheat varieties, Seeding rates, and removal treatments.
References
[1] Rosegrant, M. W.; M. Paisner; S. Meijer and J. Whitcover. 2001. Global food projections to 2020: Emerging trends and alternative futures. Washington, D. C.: IFPRI.
[2] Condon, A.G.; M.P. Reynolds; J. Brennan; M. van Ginkel; R. Trethowan; G.J. Rebetzke; D.G. Bonnett; R.A. Richards and G.D. Farquhar. 2006. Stomatal aperture related traits and yield potential in bread wheat. CIMMYT, Australian Government, Australian Center for International Agriculture Research,Grains Research & Development Corporation, pp: 126-133.
[3] Terwilliger, R. 2009. Global wheat production to be a record in 2008-09: Report. PTI, Newdelhi, Mydigitalfc.com, 3 pages.
[4] Global what production forecast at 673 million tons, 2010. NCDEX institute of Commodities market and Research, Commodity online, 3 pages.
[5] Jolánkai, M.; Zs. Szentpétery and Z. Hegedủs. 2006. Pesticide residue dischange dynamics in wheat grain. Cereal Research Communications Vol. 34, No. 1, pp: 505-509.
[6] Falaki, A.M.; S. Miko; I.B. Mohammed; I.U. Abubakar and J.A. Valencia. 2009. Evaluaton of some improved bread wheat varieties at Chiyako, Jigawa state, Nigeria. ARPN Journal of Agricultural and Biological Science Vol.4, No.4, 4 pages.
[7] Sharma, DL.; M. D'Antuono; M. Amjad; B.J. Shackley; C.M. Zaicou-Kunesch and W.K. Anderson. 2006. Differences among wheat cultivars in their optimum sowing times in Western Australian environments. Agronomy, 6 pages.
[8] Spink, J. 2002. Assessing risks to winter wheat plant population. Home -Grown Cereals Authority (HGCA), No.8, 2 pages.
[9] Edwards, J. and Dr. P. Martin. 2008. Wheat Row Space, Cowra. Plant population. NSW department of primary industries, NSW DPI. VSAP Project, 2 Pages.
[10] Anderson, W.K. 2009. Some relationships between plant population, yield components and grain yield of wheat in a Mediterranean environment, Australian Journal of Agricultural Research, Vol. 37, No. 3, pp: 219-233.
[11] Xiaojuan, Li; H. Wang; H. LI; L. Zhang, N. Teng; Q. Lin ; J. Wang; T. Kuang; Zh. LI; B. LI; A. Zhang and J. Lin. 2006. Awns play a dominant role in carbohydrate production during the grain-filling stages in wheat (Triticum aestivum). Physiologia plantarium, Vol.127, No.4, pp: 701-709.
[12] Khaliq, L.; A. Irshad and M. Ahsan, 2008. Awns and flag leaf contribution to grain yield in spring wheat (Triticum aestivum L.), Akadėmiai Kiadơ, cereal research communications- Journal Article, Vol. 36, No.1, pp: 65-76.
[13] Minhas, A. S.; A.S Randhawa and K. Chand. 2006. Effect of awns and leaf-blades on the grain yield of wheat (Triticum aestivum L. Em Thell). CABI, the journal of research, Punjab agricultural university, 2 pages.
[14] Paluska, M.M. 1981. Effect of flag leaf and awn removal on seed weight of arivat barley. JSTOR: Journal of the Arizona- Nevada Academy of Science, Vol. 16, No. 1, pp: 260- 266.
[15] Al- Mohamad, F. and M.A. AL- Yonis. 2000. Agricultural Experimentation Design and analysis, Baghdad University. Ministry of Higher Education and Scientific research part 1 and 2, pp: 374-444 (in arabic).
[16] Al-Rawi and Khalfalah. 1980. Design and Analysis of Agricultural Experiments, College of Agriculture and Forestry, Mosul University. Pp: 361-363 (in arabic).
[17] Egliq, D.B. 1998. Seed biology and yield of grain crops. Biddles limited.U.K.
[18] Richards, R.A. and Z. Lukacs. 2002. Seeding vigour in wheat sources of variation of genetic and agronomic improvement. Austr. J.of Agri. Res. Vol.53, pp: 41- 50.
[19] Jamali, K.D.; M.A. Arian and M.A. Javed. 2003. Breeding of bread wheat (Triticum aestivum L.) for semi- dwarf character and high yield. Wheat information service Japan 96, pp: 11-14.
[20] Lazović, D.; D. Božović; N. Deletić and B. Petrović. 1994. The study of certain morphological, biological and productive traits of recently developed winter wheat cultivars in the conditions of North Metohia. J. Sci. Agric. Res. Vol. 56, No. 198, pp: 39- 49.
[21] Andrew, Ch.; U. Baumann; B. Geoferry; B. Fincher and N.C. Collins. 2009. Flt-2L, a locus in barley controlling flowering time, spike density and plant height. Funct Integre Genimics, 9, pp: 243- 254.
[22] Sharma, S.N.; R.S. Sain and R.K. Sharma. 2003a. The genetic control of the flag leaf length in normal and late sown durum wheat. Journal of Agriculture Science 141, pp: 323-331.
[23] Gracìa del Moral, L.F.; Y. Rharrabti; D. Villegas and C. Royo. 2003. Evaluation of grain yield and its components in durum wheat under Mediterranean conditions: an Ontogenetic Approach. Agron. J. 95, pp: 266- 274.
[24] Ugarte, C.; D.F. Calderini and G.A. Slafer. 2007. Grain weight and grain number responsiveness to pre- anthesis temperature in wheat, barley and triticaly. Field Crop Res. 100, pp: 240-248.
[25] Noad, B. 2005. Productive dual purpose winter wheats. NSW department of primary industries. Agnote DPI 438, Agriculture, North West New England, 8 pages.
[26] Wajid, A; H. Abid; A.Ahmad; A.R. Goheer; M. Ibrahim and M. Mussaddique. 2004. Effect of sowing date and plant population on biomass grain yield and yield components of wheat. Int. J. Agri. Biol., Vol. 6, No. 6, pp: 1003- 1005.
[27] Muhammad, A.A. 2002. Effect of plant populations and two methods cultivation on growth and yield of four local rice (Oryza sativa L.) in Sulaimani region. M.Sc. Thesis. University of Sulaimani, college of agriculture.
[28] Briggs, K.G. and A., Aytenfisu. 1980. Relationship between morphological characters above the flag leaf node and grain yield in spring wheat. Crop Science, 20, PP: 350- 354.
[29] Wang, Z.M.; A.L. Wel, and D.M. Zheng. 2001. Photosynthetic characteristics of non-leaf organs of winter wheat cultivars differing in ear type and their relationship with grain mass per ear. Photosynthetica, 39, pp: 239-244.
[30] Wirth, E.; G.K. Kelly; G. Fischbeck and E. Latzko. 1977. Enzyme activities and products of CO2 fixation in various photosynthetic organs of wheat and oat. Z.Pflanzen-physiol., 82, pp: 78-87.
[31] Imaizumi, N.; M. Samejima and K. Ishihara. 1997. Characteristics of photosynthetic carbon metabolism of spikelets in rice. Photosynth. Res., 52, pp: 75-82.
[32] Olugbemi, L.B.; J. Bingham and R.B. Austin. 1976b. Ear and flag leaf photosynthesis of awned and awnless Triticum species Ann. Appl. Biol., 84, pp: 231-240.
[33] Foulkes, M.J.; R., Sylvester-Bradley; R.Weightman and J.W., Snape. 2007. Identifying physiological traits associated with improved drought resistance in winter wheat. Field Crop Research 103, PP: 11- 24.
[34] Mahmood, A.; K. Alam; A. Salam and S. Iqbal. 1991. Effect of flag leaf removal on grain yield, its components and quality of hexaploid wheat. Cereal-Research-Communications, Vol. 19, No. 3, pp: 305-310.
[35] Lupton, F.G.H. 1973. Selection criteria determining yield in semi dwarf wheat varieties. Ann. Appl. Biol. 72, pp: 47-50.
[36] Ahmad, M.M. 2010. Triticale as an alternative crop to wheat and barley under different Sulaimani conditions. M. Sc. Thesis. University of Sulaimani, College of agriculture.
[37] Olugbemi, L.B. and M.G. Bush. 2009. The influence of temperature on the contribution of awns to yield in wheat. Australian Journal of Plant Physiology, Vol. 14, No. 3, pp: 299-310.
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