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Question

The hormone capable of replacing the requirement of long photoperiods for flowering is

A
Ethylene
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B
Auxin
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C
Gibberellin
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D
Cytokinin
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Solution

The correct option is B Gibberellin
Gibberellin is a plant hormone which helps in growth of stem. The rapid induction of flowering is called bolting. It requires either long photoperiods or cold treatment. However, it can be induced artificially by the application of gibberellin under normal conditions. Hence, it replaces the long photoperiods required for flowering.
Thus, the correct answer is option C.

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