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प्रश्न
Name a genus of fungi that forms a mycorrhizal association with plants.
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उत्तर
The fungi belonging to the genus Glomus form mycorrhizal associations with plants.
संबंधित प्रश्न
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.
How do mycorrhizae act as biofertilizers? Explain.
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.
What is VAM?
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which of the following is the host for microbial pesticide Beauveria bassiana?
Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
Match the items in Column ‘A’ and Column ‘B’ and choose correct answer.
| Column I | Column II |
| A. Lady bird | i. Methano bacterium |
| B. Mycorrhiza | ii. Trichoderma |
| C. Biological control | iii. Aphids |
| D. Biogas | iv. Glomus |
The correct answer is:
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
Describe the main ideas behind the biological control of pests and diseases.
Organic farmer use Baculovirus as biological control agents. Explain.
- Give an example of a genus of virus used as narrow spectrum insecticidal biocontrol agent.
- How does its use serve as an aid in overall integrated pest management programme?
Explain how Bacillus thuringiensis acts as a bio-control agent.
