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Which of the ...

Question

Which of the following hormone closes stomata in response to water stress?

A

IAA

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B

ABA

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C

NAA

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D

{GA}_{3}

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Solution

The correct option is B ABA
In guard cells, the plant hormone abscisic acid (ABA) inhibits stomatal opening and induces stomatal closure through the coordinated regulation of ion transport.

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