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Question
Using low temperature to promote flowering in plants is called _____.
Options:
A .  Photoperiodism
B .  Vernalization
C .  Photoblast
D .  None of the above
Answer: Option B
:
B
Vernalisation refers specially to the promotion of flowering by a period of low temperature.It prevents precocious reproductive development late in the growing season, and enables the plant to have sufficient time to reach maturity.

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