Which growth regulator promotes root initiation, flowering and induced parthenocarpy?

Gibberellin

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Auxin

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Cytokinin

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Ethylene

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Solution

The correct option is B Auxin
Auxin is a plant hormone. It acts as growth regulator hormone. It promotes root initiation when present in limited concentration. It is also used to promote flowering in plants like pineapple as it increases concentration of ethylene. Auxin is also used to produce parthenocarpic fruits when applied to unpollinated pistils.
Thus, the ocrrect answer is option B.

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Which of the following plant growth regulators (PGRs) promote root initiation, flowering, and induced parthenocarpy?

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