Question

Phytochrome mediated process is

• A. Plastid orientation
• B. Flower formation
• C. Bud dormancy
• D. All of the above

Answer 1

The correct option is D All of the above

Phytochrome is responsible for the absorption of optimum light required for the plant. It is a photoreceptor, a pigment that plants use to detect light. It is sensitive to light in the red and far red region of the visible spectrum. Many flowering plants use it to regulate the time of flowering based on the length of day and night and to set circadian rhythms. Thus, it has direct role in : plastid orientation, flower formation and bud dormancy.

So, the correct answer is 'All of the above'