Abscission and dormancy are caused by

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(A) $ABA$ (Abscisic Acid) is a plant growth inhibitor. It plays a crucial role in regulating plant responses to stress. It promotes the abscission of

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$ABA$

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(A) $ABA$ (Abscisic Acid) is a plant growth inhibitor. It plays a crucial role in regulating plant responses to stress. It promotes the abscission of leaves,flowers,and fruits by accelerating senescence. Additionally,it induces seed dormancy,which helps seeds withstand desiccation and other unfavorable growth conditions.

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