Which is not a function of cytokinin?

Delay is senescence

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Breaking seed dormancy

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Promoting bud dormancy

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Promoting stomatal opening

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Solution

The correct option is C Promoting bud dormancy
Cytokinin (CK) is a plant hormone. It promotes cell division and delays senescence in plants. It improves nutrient mobilization and thus delays leaf senescence. When applied externally, it mobilizes nutrients towards sites of application. It also promotes stomatal opening along with auxin hormone. It also breaks the dormancy of seeds and induce seed germination.
Thus, the correct answer is option C.

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