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प्रश्न
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
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उत्तर
Fungi are also known to form symbiotic associations with plants (mycorrhiza). Many members of the genus Glomus form 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
Name a genus of baculovirus.
State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.
Select the odd one from given herbicides.
Identify the INCORRECT statement regarding Bacillus thuringiensis.
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:
Organic farmer use Baculovirus as biological control agents. Explain.
Which of the following is incorrect regarding Bacillus thuringiensis?
- 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?
Why are the biocontrol agents preferred over the chemical pesticides?
Which one of the following is NOT a bioherbicide of bacterial origin?
