Web Links 

The web extension resource is related to the extensive additional contents related to the subject, it may be hand written / typed materials / web based contents with curated hyper links available in internet in the form of video links / E books as .pdf files / images files./ illustrations/case studies / open source content in internet / research papers / journals anecdotal information, historical development of subjects, articles etc. 

This learning part comes under Quadrant - III of the UGC guidelines for E content Development 

To reach each Units contents click below

To reach the Extra notes for Unit - 1 click HERE

To reach the Extra notes for Unit - 2 click HERE

To reach the Extra notes for Unit - 3 click HERE

To reach the Extra notes for Unit - 4 click HERE

To reach the Extra notes for Unit - 5 click HERE

Check about the details of the quadrant suggested by UGC 

Bacterial oozeout from a cut stem

cultivation of azolla, a biofertiliser   A Method demonstration[480P].MP4 — This video describes about the "Mass mutiplication of Azolla and their uses"

Hairy root culture production from Carrots — This hairy root formed by Agrobacterium infection are used as source for mycorrhizal multiplication

Irish Famine — Take a look at this video you may know the effects of Irish Famine

List of Rice Diseases — You can go through here for the list of diseases caused in the rice crop.....go through this since sometime they ask a 5 mark question or 20 marks question on this topic

Microfauna in soil — It includes Nematodes, mites, rotifers, insect larva and tardigrades (water bears)

Mycorrhiza extracting P nutrient

Mycorrhizal importance for Land plants

Nematode eating a plant

One more link of nematode eating plant roots

Photos of plant diseases

Plant with and without mycorrhiza — Mycorrhizal Vs Non mycorrhizal plants

Protozoa movement in soil

Rhizobium Taxonomy

Shelled Amoeba

Stem Rust of Wheat — An Excellent video demonstrating the different spores and their role in the life cycle and survival of Stem rust pathogen

Testate Amoeba

The Methylobacterium success story in the Cauvery delta — A success story of Methylobacterium application for Rice crop in the Cauvery delta region, Tamil Nadu 

Winogradsky Column — This animations describes about preparation of Winogradsky column, various groups of microbe associated with the column, factors affecting the column formation etc.