Which plant hormone is primarily responsible for inducing stomatal closure during water stress (drought)?

Type: MCQ • Marks: 1

A. Auxin

B. Abscisic Acid (ABA)

C. Cytokinin

D. Gibberellin

Explanation

Abscisic acid acts as a stress hormone, triggering rapid potassium efflux from guard cells to close stomata and save water.

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