Question

Name the site of perception of photoperiod required for induction of flowering in plants.

Answer 1

Photoperiodism:

1. It refers to the plant's developmental reactions to the relative lengths of light and dark periods.
2. Plants are further divided into three categories based on their photoperiods: short-day plants, long-day plants, and day-neutral plants.
3. The photoperiodic stimulus is sensed by the leaves of the plants during the flowering process, and as a result, a floral hormone is released in the leaves, which is then translocated to the apical tip, triggering the onset of floral development.
4. Many angiosperm flowering plants use a photoreceptor protein, such as phytochrome or cryptochrome, to detect seasonal changes in night duration, or photoperiod, which they interpret as signals to the flower.
5. The plant's reaction to seasonal fluctuations is called photoperiodism.