Question

Choose the correct answer from the alternatives given.
The hypothetical plant hormone Florien could be released prematurely in a long-day plant experimentally exposed to flashes of:

• A. far-red light during the night
• B. red light during the night
• C. red light followed by far-red light during the night
• D. far-red light during the day

Answer 1

The correct option is B red light during the night

Florigen is gibberellin like hormone which is said to be hypothetical and is released in a long day plant when these plants are exposed to the flashes of red light during the night in between the darkness. The red light stimulates the formation of gibberellin-like hormone which is reversed by giving far-red light.

So, the correct option is 'Red light during the night'.