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प्रश्न
How do mycorrhizae act as biofertilizers? Explain.
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उत्तर
Fungi are also known to form symbiotic associations with plants, this association is called mycorrhiza. The fungal symbiont in these associations absorbs phosphorus from soil and passes it to the plant. Plants having such associations show other benefits also, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development.
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संबंधित प्रश्न
Given below is a list of six micro-organisms. State their usefulness to humans.
- Nucleopolyhedrovirus
- Saccharomyces cerevisiae
- Monascus purpureus
- Trichoderma polysporum
- Penicillium notatum
- Propionibacterium sharmanii
What is VAM?
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Describe the main ideas behind the biological control of pests and diseases.
Organic farmer use Trichoderma as biological control agents. Explain.
Nucleopolyhedrovirus do not show ______.
give any two examples of microbial herbicides.
Explain how Bacillus thuringiensis acts as a bio-control agent.
Which one of the following is NOT a bioherbicide of bacterial origin?
Which one of the following is NOT an action of biocontrol on a pest?
