Question

Flowering is affected by

• A. Soil water content
• B. Soil acidity
• C. Photoperiod
• D. Amount of green pigment

Hint:

Photoperiodism controls flowering by responding to day length.

Answer 1

The Correct Option is C

Photoperiod, the duration of light and dark periods in a day, influences flowering in many plants. It regulates the timing of flowering by triggering physiological responses.
- Soil water content and acidity affect plant growth but are not direct factors controlling flowering time.
- The amount of green pigment (chlorophyll) relates to photosynthesis, not flowering control.