Question

Short day plants come to flower .......... a critical photoperiod.

• A. Below
• B. Above
• C. Any photoperiod
• D. None of the above

Answer 1

The correct option is A Below

Short day plants such as cannabis or cotton flower during the late summer or fall in the northern hemisphere when days get shorter. Periods of darkness is longer than that of light are needed for the plants to flower. If the plants are exposed to light, their photoperiodism is disturbed and the plants do not flower.

So, the correct answer is option A.