Plant Growth And Development Question 99

Question: Leaf fall occurs on abscission layer is formed when the content of [CPMT 1981, 84; AIIMS 1990; MP PMT 1996]

Options:

A) Auxin increases

B) Auxin decreases

C) Abscisic acid decreases

D) Gibberellic acid decreases

Show Answer

Answer:

Correct Answer: B

Solution:

Auxin inhibits abscission of leaves and fruits.

Abscission layer is produced when the auxin content falls below a minimum.

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