Role/importance/effects of Abscisic acid (ABA) on plants

Role/importance/effects of Abscisic acid (ABA) on plants

Abscisic acid is a major inhibitor in plants and is antagonistic to all the three classes of growth promoters. Role of abscisic acid
  1. Maintains leaf dormancy
  2. Causes stomata closure
  3. Causes seed dormancy
  4. Promotes fall of leaves and fruits
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