One set of the plant was grown at 12 12-hour day and 12-hour night cycle, and it flowered. In the other set, the night phase was interrupted by a flash of light, and it did not produce flowers. Under which one of the following categories will you place this plant?
Correct answer: D. Short Day
- A. Long Day
- B. Vernalized plants
- C. Day Neutral
- D. Short Day
Explanation
The plant that flowers only under long, uninterrupted dark periods but fails to flower when the night is interrupted by light is a short-day plant. This shows that it requires a continuous dark phase for flowering, which was disturbed by the flash of light.
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