Vernalization is the process of
(a) flower induction by high temperature treatment
(b) inhabitation of flowering by low temperature treatment
(c) flower induction by light treatment
(d) acceleration of the ability of a plant to produce flowers by chilling treatment
(d): Vernalization is the low temperature treatment given to water soaked seeds, slightly germinated seeds or seedling to hasten the time of flowering of plants. CHouard (1960) defined vernalization as the "acquisition or acceleration of the ability to flower by a chilling treatment". The implication is not that genetic of variety is changed to summer or spring from but only that the variety is made to act like the summer and spring form in response to an artificial cold treatment.