Abscission of fruits is prevented by

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(D) Auxins,such as $IBA$ (Indole$-3-$butyric acid),are plant hormones that play a crucial role in regulating plant growth and development.One of their

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$IBA$

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(D) Auxins,such as $IBA$ (Indole$-3-$butyric acid),are plant hormones that play a crucial role in regulating plant growth and development.One of their primary functions is to inhibit the abscission (shedding) of young fruits and leaves by maintaining the integrity of the abscission zone.$ABA$ (Abscisic acid) promotes abscission,while Ethylene is the primary hormone responsible for fruit ripening and the acceleration of abscission.Therefore,$IBA$ is used to prevent the premature dropping of fruits.

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