Vernalization
Vernalization
Vernalization (pronunciation: /vərˈnalɪˌzeɪʃ(ə)n/) is a process in some plants that makes them flower in response to prolonged periods of cold temperatures. The term is derived from the Latin word vernus, meaning "of the spring".
Etymology
The term "vernalization" comes from the Latin word vernus, meaning "of the spring". It was first used in the 1920s by the Russian scientist Gustav Gassner to describe a process he observed in winter wheat.
Process
Vernalization is a form of dormancy that some plants undergo during the winter months. This process involves a change in the plant's phenotype in response to prolonged exposure to cold temperatures. The cold temperatures trigger a response in the plant that prepares it to flower once temperatures rise again in the spring. This process is crucial for the survival of many plant species, as it ensures that they flower at the optimal time for pollination and seed production.
Related Terms
- Dormancy: A period in an organism's life cycle when growth, development, and physical activity are temporarily stopped.
- Phenotype: The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
- Genotype: The genetic constitution of an individual organism.
- Pollination: The transfer of pollen from a male part of a plant to a female part of a plant, enabling fertilization and the production of seeds.
See Also
- Photoperiodism: The physiological reaction of organisms to the length of day or night.
- Stratification (botany): The process of treating seeds to simulate natural conditions that the seeds must experience before germination can occur.
External links
- Medical encyclopedia article on Vernalization
- Wikipedia's article - Vernalization
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