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UPSC Prelims 1992Question 116Science & Technology

It has been observed that aftereffects of low temperature treatment are helpful in promoting the flowering in certain plants. Through this the vegetative period of plant becomes short and early flowering takes place. This phenomenon is known as

Options

  1. (a)Photoperiodism
  2. (b)Floreignation
  3. (c)Vernalisation
  4. (d)Heliotropism

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