First slide

Plant Growth Regulators

Question

Internodal elongation prior to flowering in plants with rosette habit is promoted by the following phytohormone.

Easy

A

Auxins
B

Gibberellins
C

Cytokinins.
D

Ethylene

Solution

Gibberellins promote bolting in plants with rosette habit. They promote the elongation of internodes prior to flowering in plants like cabbage, beet etc.

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