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प्रश्न
What is mycorrhiza?
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उत्तर
Mycorrhiza is a fungus. It forms symbiotic associations with the underground parts, like rhizomes and roots of higher plants occurring in thick, humid forests.
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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
Mention one advantage and one disadvantage to a farmer who uses them.
Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area.
State the difference in organic farmers approach from that of conventional pest control methods.
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
Write a note on biocontrol agents.
Select the odd one from given herbicides.
Which of the following statements regarding biocontrol agents are correct?
From the following which one is NOT a bacterial herbicide?
Which group features jointed appendages?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
The free-living fungus Trichoderma can be used for ______.
What for Nucleopolyhydro viruses are being used now a days?
Name any genetically modified crop.
Describe the main ideas behind the biological control of pests and diseases.
Explain how Bacillus thuringiensis acts as a bio-control agent.
Which one of the following is NOT a bioherbicide of bacterial origin?
