DEFINITIONS AND KEY POINTS FOR Photoperiodism
| TERMS | DEFINITIONS |
| Photoperiodism | The response of plant tothe relative length of light and dark period is called photoperiodism. |
| Short Day
Plants (SDP) |
The plants that flower when day length is less than a certain critical length are called short day plants. |
| Long day plants | The plants that flower when day length is more than a certain critical length are called short day plants. |
| Inductive | If a photoperiod causes flowering in a plant,it is
called inductive photoperiod. |
| Non-inductive | Ii it doesnot cause flowering. then it is non‑Inductive
|
| Phytochromes | The proteins present in the leaves which absorb light of different wave lengths are called |
| Phytochrome red (Pr) | It absorbs maximum light in the red region of the spectrum. It has wavelength of 660u Pr is the inactive form. |
Similar Articles:
- Subjective and Short questions for photoperiodism
- CLASSIFICATION OF FLOWERING RESPONSES
- Phytochromes – Discovery , Types & Mechanism
- Objective for photoperiodism
- PHOTOPERIODISM
