Which hormone promotes stem elongation and was first discovered while studying the growth of extremely tall and spindly rice plants?
A) abscisic acid
B) auxin
C) cytokinin
D) ethylene
E) gibberellin

Question

Quizplus · Accepted Answer

Gibberellin is the hormone that promotes stem elongation and was first discovered in rice plants that grew excessively tall and spindly due to a fungal infection.

Which Hormone Promotes Stem Elongation and Was First Discovered While