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Get Answers to all your Questions
The substance that triggers the fall of mature leaves and fruits from plants is due to
(a) auxin
(b) gibberellin
(c) abscisic acid
(d) cytokinin
Answers (1)
Explanation: Abscisic acid is a plant hormone that plays an important role under stress conditions. It promotes the senescence of leaves and causes the abscission of flowers and fruits by forming a layer of abscission. This layer disconnects the living tissue of the leaf from the other parts. Hence, (c) is the correct option.
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