Question

Which one is correct for blooming of short day plants?

• A. The long dark period is not critical
• B. It is affected by interruption of long dark period by brief exposure to light
• C. It is not affected by interruption of long dark period by brief exposure to light
• D. It is affected if continuous light period is interrupted

Answer 1

The correct option is B It is affected by interruption of long dark period by brief exposure to light

Short day plants are those plants that begin flowering when the days are shorter than their critical day length. They require long period of darkness and short period of light to flower. It is affected by interruption of long dark period by brief exposure of light. Examples of short day plants are rice, tobacco, cotton.

Thus, the correct answer is option BC.