One set of a plant was grown at 12 hr day and 12hr night period cycles and it flowered while in the

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One set of a plant was grown at 12 hr day and 12hr night period cycles and it flowered while in the other set night phase was interrupted by flash of light and it did not produce flower.Under which one of the following categories will you place this plant ?

Accepted Answer

The condition shows that the plant require photo-period shorter than the critical day length, This plant needs uninterrupted dark period for flowering. Therefore, it is a short-day plant and these do not flower if the dare period is interrupted with flashes of light.

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