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

Step-by-step solution

The plant which flowers in the equal duration of day and night photoperiod are called a day-neutral plant. The plant which requires a short light period and longer continuous dark period for flowering are called short-day plant. They require a continuous uninterrupted dark period for flowering and fail to flower if the dark period is interrupted by a brief flash of light.