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Grade 12th passZoology

cold treatment is substituted by the action of which of the following
  1. ethylene
  2. gibberellin
  3. zeatin ABA

Profile image of somya
11 Years agoGrade 12th pass
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1 Answer

Profile image of Gaurav
11 Years ago
Hello Student
Correct answer is ABA (Albcisic acid)
Many biennials produce flower only in second year of growth after passing through a winter season. Such plants substitute the requirement of cold treatment by treatment of GibberellicAcid.