The duration of cold treatment in vernalisation varies from

Four days to four weeks

Four days to ten days

Four days to three months

One month to three months

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The duration of cold treatment in vernalisation varies from

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The acquisition or acceleration of the ability to flower by a chilling treatment is said to be vernalization. It is the method of inducing early flowering in plants by pretreatments of their seeds at a very low temperature. Low-temperature effects may be obtained at any stage of plant development. The most effective temperature for vernalization is between 0 to 5 degree C. The duration of cold treatment for effective vernalization varies from four days to eight weeks. Thus option C is the correct answer.

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