vernalization

n. acceleration of plant development by exposing seeds or bulbs to cold temperatures (also vernalisation)

Vernalization (vernalisation - British English) is the acquisition of the competence to flower in the spring by exposure to the prolonged cold of winter. The word vernalization comes from the Latin word “vernus,’ meaning “of the spring.” Many  temperate plants have a vernalization requirement and must experience a period of low winter temperature to initiate or accelerate the flowering process, or, as the case with many fruit tree species, to actually break dormancy, prior to flowering. One of the most important influences that temperature has on the floral transition is the vernalization response. Many plant species, including winter cereals such as wheat through to Arabidopsis thaliana, must go through a prolonged period of cold before flowering occurs. This ensures that reproductive development and seed production occurs at the optimum environmentally favorable time, normally following the passing of winter.
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vernalization /,və:nəlai'zeiʃn/
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PRIMAVERALIZZAZIONE

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