Photoperiodism
Photoperiodism: Overview
This Topic covers sub-topics such as Photoperiodism, Short Day Plants, Long Day Plants, Day Neutral Plants, Critical Day Length, Photoperiodic Induction, Short-long Day Plants, Long-short Day Plants, Mechanism of Photoperiodism and, Intermediate Day Plants
Important Questions on Photoperiodism
Spinach is an example of long-day plant.

Chrysanthemum is an example of a short-day plant.

Define intermediate day plants.

The proteinaceous pigment involved in the photoperiodism is called

Define critical day-length photoperiodism.



What is the key principle of photoperiodism?

Which of the following is a short-day plant?

The photoperiod in plants is perceived at


Write a short note on photoperiodism.

Write a short note on photoperiodism.

What is phytochrome? What is the significance of it?


Which of the following plant hormone has not yet been isolated


When a dark period of short day plant is interrupted by a brief exposure to light, the plant:


The physiological response of plants to the duration of light and darkness is a
