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Question

Which of the following hormones are responsible for shedding of leaves?

A
Abcisic acid
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B
Gibberellin
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C
Cytokinin
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D
Auxin
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Solution

The correct option is C Auxin
Auxin and ethylene are two plant hormones that play a major role in leaf abscission. High level of auxin triggers the production of an excess of ethylene which leads to leaf abscission.
So, the correct answer is option D.

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