PLANT PHYSIOLOGY
MINERAL NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Rhizobium
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Azospirillum
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Oscillatoria
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Frankia
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Detailed explanation-1: -Final answer: The common nitrogen-fixer in paddy fields is Azospirillum.
Detailed explanation-2: -Ans of this que is Oscillatoria which perform N-fix. in paddy fields of rice.
Detailed explanation-3: -Nostoc, Anabaena and Oscillatoria are all types of cyanobacteria and are involved in nitrogen fixation.
Detailed explanation-4: -Anabaena, Nostoc and Oscillatoria are nitrogen fixing cyanobacteria (Blue Green algae) while Azobacter and Azospirillum are nitrogen fixing free living bacteria.
Detailed explanation-5: -N2-fixing cyanobacteria are one of the microorganisms that hold a role in the cycles of nitrogen in a rice field. The existence of free-living N2-fixing cyanobacteria in paddy fields provides advantages for rice crop.