Q. The plant hormone produced by $Rhizobium$ for nodulation is
A) IBA
B) NAA
C) 2,4-D
D) IAA
Explanation
$Rhizobium$ is a nitrogen fixing bacterium that inhabits the root nodules in leguminous crops. This bacterium leads to the production of plant hormone IAA (auxin), which is known to stimulate the nodule formation in legume plants.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.