Question
Biology Question on Gibberellins
Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem,thus, increasing the yield?
A
Auxin
B
Gibberellin
C
Cytokinin
D
Abscisic acid
Answer
Gibberellin
Explanation
Solution
Gibberellin is a plant hormone that promotes growth , especially stem elon gation. When sprayed on sugarcane, it increases the stem length and enhances overall crop yield.
Cytokinins promote cell division , while auxins influence root development, and abscisic acid is involved in stress responses.