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Question

…....... is a growth inhibitor hormone in plants.

A
Auxin
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B
Cytokinin
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C
Abscisic acid
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D
Gibberellic acid
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Solution

The correct option is A Abscisic acid
  • Abscisic acid (ABA) is a plant hormone that is synthesized in the leaves and then translocated to different parts of the plant.
  • ABA is a powerful growth inhibitor. In experiments, it was observed that It causes 50 percent inhibition of growth in oat coleoptile at a specific concentration. It causes leaf senescence, induces dormancy, etc.
So, the correct answer is option C.

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