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Leaf fall occurs as abscission layer is ...

Leaf fall occurs as abscission layer is formed when the constant of

A

Auxin increases

B

Auxin decreases

C

Abscisic acid decreases

D

Gibberellic acid decreases

Text Solution

Verified by Experts

The correct Answer is:
B
In the presence of a normal level of auxin plant organ such as fruits, leaves cannot abscise. Thus auxin inhibits the abscission, it can occur only when auxin content or level decrease.
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