Plant Growth and DevelopmentMedium
Question
Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?
Options
A.Cytokinin
B.Abscisic acid
C.Auxin
D.Gibberellin
Solution
Sol. [Key Concept: Gibberellins and sugarcane yield]
Gibberellins promote internode elongation. Because sugarcane stores sugar in its stem, spraying gibberellins can increase stem length and thereby increase the yield. Hence, option (4).
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