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The biofertiliser, which is inoculated in rice fields in South-Eastern Asia, which is found to increase yield up to 50%, is
  • a)
    Anabaena cycadaceae present symbiotically in Cycas roots
  • b)
    Nostoc punctaeformae found symbiotically in Anthoceros thallus
  • c)
    Anabaena azollae present symbiotically in the leaves of water fern Azolla
  • d)
    Symbiotic association between roots of higher plants and fungal hyphae
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The biofertiliser, which is inoculated in rice fields in South-Eastern...
Anabaena azollae i.e., present in the leaves of water fern (Azolla) used as a biofertiliser, that increased the production of rice in agricultural fields.
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The biofertiliser, which is inoculated in rice fields in South-Eastern...
Explanation:

Anabaena azollae present symbiotically in the leaves of water fern Azolla:
- Azolla is a water fern that forms a symbiotic relationship with the nitrogen-fixing cyanobacteria Anabaena azollae.
- The cyanobacteria live in specialized cavities in the leaves of Azolla, where they fix atmospheric nitrogen into a form that can be used by the plant.
- This nitrogen fixation process provides the plant with a nutrient source, which in turn promotes plant growth and increases yield.
- When Azolla is used as a biofertilizer in rice fields, the Anabaena azollae present in the plant helps to improve soil fertility and enhance rice productivity.
- The presence of Anabaena azollae in Azolla contributes to the increased yield of rice crops in South-Eastern Asia, making it an effective biofertilizer option.
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The biofertiliser, which is inoculated in rice fields in South-Eastern Asia, which is found to increase yield up to 50%, isa)Anabaena cycadaceae present symbiotically in Cycas rootsb)Nostoc punctaeformae found symbiotically in Anthoceros thallusc)Anabaena azollae present symbiotically in the leaves of water fern Azollad)Symbiotic association between roots of higher plants and fungal hyphaeCorrect answer is option 'C'. Can you explain this answer?
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The biofertiliser, which is inoculated in rice fields in South-Eastern Asia, which is found to increase yield up to 50%, isa)Anabaena cycadaceae present symbiotically in Cycas rootsb)Nostoc punctaeformae found symbiotically in Anthoceros thallusc)Anabaena azollae present symbiotically in the leaves of water fern Azollad)Symbiotic association between roots of higher plants and fungal hyphaeCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The biofertiliser, which is inoculated in rice fields in South-Eastern Asia, which is found to increase yield up to 50%, isa)Anabaena cycadaceae present symbiotically in Cycas rootsb)Nostoc punctaeformae found symbiotically in Anthoceros thallusc)Anabaena azollae present symbiotically in the leaves of water fern Azollad)Symbiotic association between roots of higher plants and fungal hyphaeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The biofertiliser, which is inoculated in rice fields in South-Eastern Asia, which is found to increase yield up to 50%, isa)Anabaena cycadaceae present symbiotically in Cycas rootsb)Nostoc punctaeformae found symbiotically in Anthoceros thallusc)Anabaena azollae present symbiotically in the leaves of water fern Azollad)Symbiotic association between roots of higher plants and fungal hyphaeCorrect answer is option 'C'. Can you explain this answer?.
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