Question

Photoperiodism influences

• A. Seed germination
• B. Vegetative growth
• C. Internode elongation
• D. All the above

Answer 1

The correct option is A Seed germination

Photoperiodism is the phenomenon in which formation of flowers in plants depends on the relative length of dark or light periods. It also influences growth, seed germination, fruit development, the onset of winter dormancy. Short day plants are those plants that require long period of darkness and short period of light to flower. Long day plants are those plants that will flower when they are exposed to short period of darkness and long period of light.

Thus, the correct answer is 'Seed germination'.