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NEETBotanyPlant - Growth and Development

What is one of the primary roles of abscisic acid (ABA) in plants?

Options

  1. APromoting seed germination
  2. BRegulating abscission and dormancy
  3. CEnhancing flower growth
  4. DIncreasing fruit ripening

Correct answer

B. Regulating abscission and dormancy

Step-by-step solution

ABA stimulates the closure of stomata in the epidermis and increases the tolerance of plants to various kinds of stresses. Therefore, it is also called the stress hormone ABA plays an important role in seed development, maturation and dormancy. By inducing dormancy, ABA helps seeds to withstand desiccation and other factors unfavourable for growth.

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