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Farmers have reported over 50% higher yi...

Farmers have reported over `50%` higher yields of rice by using which of the following biofertilisers ?

A

Mycorrhiza

B

Azolla pinnata

C

Cyanobacteria

D

Legume-Rhizobium symobiosis

Text Solution

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The correct Answer is:
B
Anabaena azollae, a cyanobacterium living in the cavities of fern Azolla, fixes atmospheric nitrogen and releases it into the leaf cavity of the fern. Farmers have reported ove 50% higher yields by using Azolla pinnata.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-MICROBES IN HUMAN WELFARE-EXERCISE
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  2. Cry 1 endotoxins obtained from Bacillus Thuringiensis are effective ag...

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  3. Main objective of production of herbicide resistant GM crops is to

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  4. Which proves to be effective biological control for nematodal pathogen...

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  5. Which proves to be effective biological control for nematodal pathogen...

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  6. Which of the following statements is correct ?

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  7. Which one of the following is being utilized as a source of biodiesel ...

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  8. A free-living nitrogen-fixing cyanobacterium which can also form symbi...

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  9. The most likely reason for the development of resistence against pesti...

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  10. During anaerobic digestion of organic waste, such as in the producing ...

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  11. Which of the following plants are used as green manure in crop fields ...

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  12. Aquatic fern which is an excellent biofertilizer

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  13. Farmers have reported over 50% higher yields of rice by using which of...

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  14. Biological control component is central to advanced agricultural produ...

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  15. Agent orange is

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  16. Which of the microrganisms is used for production of citric acid in in...

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  17. Which of the following is a non-symbiotic biofertiliser ?

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  18. Suppression of reproduction of one type of organism by utilising some ...

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  19. Which is false about antibiotics ?

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  20. One of the major difficulties in the biological control of insect pes...

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