Question

what do you mean by vernalisation

Answer 1

This term is used to describe the dependence of certain plants on exposure to low temperature for flowering qualitatively or quantitatively. It prevents reproductive development late in the growing season and thereby grants the plant sufficient time to reach maturity. An example of this could be the wheat plant which has two varieties viz. winter and spring. The winter variety is planted in autumn as they get time to germinate and come out as small seedlings in winter, continues to grow in spring and are harvested in mid-summer.

Answer 2

Vernalization,, the artificial exposure of plants (or seeds) to low temperatures in order to stimulate flowering or to enhance seed production. 
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