Question
Biology Question on plant growth and development
The hormone that promotes rapid elongation of intemode or petiole in deep water rice plant is
A
abscisic acid
B
ethylene
C
cytokinin
D
gibberellin.
Answer
ethylene
Explanation
Solution
Ethylene is a gaseous hormone. It promotes rapid elongation of leaf bases and internodes in deep water rice plants so that the leaves remain above water