Davies, Peter J. School of Integrative Plant Science, Cornell University, Ithaca, New York.
Last reviewed:January 2020
- Seed Dormancy
- Morphological factors
- Physiological factors
- Low temperature
- Hormonal Control of Seed Dormancy
- Dormancy inducers
- Viviparous germination
- Dormancy-releasing agents
- Bud Dormancy
- Dormancy induction
- Dormancy release
- Regulation of gene expression
- Exogenous regulation of bud dormancy
- Related Primary Literature
- Additional Reading
The state in which a living plant organ (seed, bud, tuber, and bulb) fails to exhibit growth, even when environmental conditions are favorable. Environmental conditions favorable for growth usually include the presence of water and oxygen, and an intermediate temperature that will vary with species but generally is 10–30°C (50–86°F). Dormancy may be caused by morphological constraints or the condition of developmental regulation of the plant organ, which can be changed only by time or exposure to environmental factors such as cold, light quality or photoperiod, or chemicals in the environment (for example, chemicals in smoke). Dormancy is usually characterized by the plant organ (bud, seed, and so forth) and by the conditions that break the dormancy. See also: Bud; Plant growth; Plant organs; Plant physiology; Seed
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