Question

A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because

• A. Autoclaved soil is not good for root growth
• B. Autoclaved soil is devoid of bacteria
• C. Autoclaving reduces $N_2$ content of soil
• D. Plants cannot form root hairs in such a soil

Answer 1

The correct option is B Autoclaved soil is devoid of bacteria

A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because in the autoclaved soil the bacteria of soil will die hence making the soil infertile for the growth of plants.