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NEETBotanyPlant - Growth and Development

What effect does ABA have on seed germination?

Options

  1. AIt promotes seed germination
  2. BIt inhibits seed germination.
  3. CIt has no effect on seed germination.
  4. DIt accelerates seed germination.

Correct answer

B. It inhibits seed germination.

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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