Question

Which of the following statements regarding photoperiodism is false?

• A. The response of plants to periods of light/day is termed as photoperiodism
• B. The shoot apices cannot perceive photoperiods
• C. In day neutral plants there is no correlation between exposure to light duration and induction of flowering response
• D. Shoot apices modify themselves into flowering apices prior to flowering
• E. The site of perception of light/dark duration is the flower

Answer 1

The correct option is E The site of perception of light/dark duration is the flower

Photoperiodism is the response of plants to photoperiods, that is the length of day and night. During photoperiodism, shoot apices modify themselves into flowering apices prior to flowering. However, they do not perceive photoperiods. Rather, the site of perception of light and dark duration are leaves. In day-neutral plants, induction of flowering response does not depend on exposure to light duration. The site of perception of light/dark duration is the leaves.

So, the correct answer is 'The site of perception of light/dark duration is the flower'.