Which of the following plant hormones is primarily responsible for inducing seed dormancy, promoting stomatal closure under water stress, and inhibiting seed germination?

💡 Solution & Explanation

Abscisic acid is a vital plant hormone that acts predominantly as a growth inhibitor, playing a key role in inducing seed dormancy, promoting leaf senescence, and triggering stomatal closure during drought stress. Unlike auxins that promote cell elongation, ABA helps plants survive environmental stress.