What is the role of auxin?

Prevents abscission of leaves and fruits

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Promotes abscission of leaves and fruits

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Promotes stomatal closure

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Promotes dormancy

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Solution

The correct option is A Prevents abscission of leaves and fruits
Auxin is a plant hormone. It is involved in many physiological processes of plants. It acts as plant growth promoter. It prevents abscission of leaves and fruits. It prevents premature fall of leaves and fruits. Its concentration is low in mature fruits and leaves.
Thus, teh correct answer is 'Prevents abscission of leaves and fruits'.

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