Gujarati
8.Microbes in Human Welfare
medium

A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is

A

Azotobacter

B

Bacillus polymyxa

C

Clostridium

D

Azospirillum

Solution

(d)A bacterium Azospirillum lipoferum forms loose association with roots of maize and some Brazilian grasses which increase the crop yield upto a large extent.

Standard 12
Biology

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