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Abscisic Acid

Stomatal clos...

Question

Stomatal closure under stress conditions is due to

A

IAA

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B

ABA

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C

IBA

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D

2, 4-D

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Solution

The correct option is C ABA
Stress hormone is a hormone produced during adverse environmental conditions. Abscisic acid (ABA) is called as stress hormone. Due to this hormone, plants respond to stresses conditions like cold, drought. Stomatal closure under stress condition is due to this hormone. It also promotes seed dormancy under adverse condition.
Thus, the correct answer is option B.

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