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Q.

Choose incorrect statement.

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a

Vernalisation is the phenomenon in which some plants depends quantitatively not qualitatively on exposure to low temperature for flowering.

b

Requirement of vernalisation in winter varieties prevents precocious reproductive development late in the growing season, and enable the plant to have sufficient time to reach maturity.

c

Winter varieties of cereals are planted in autumn, they germinate, and over winter come out as small seedling, resume growth in spring, and are harvested usually around mid summer.

d

Spring varieties of cereals are planted in spring and come to flower and produce grain before the end of growing season.

answer is A.

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Detailed Solution

There are plants for which flowering is either quantitatively or qualitatively dependent on exposure to low temperature. This phenomenon is termed vernalisation.

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