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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Which one of the following plant growth regulator is known as 'stress hormone'?

Options

  1. AAbscisic acid
  2. BEthylene
  3. CGA3
  4. DIndole acetic acid

Correct answer

A. Abscisic acid

Step-by-step solution

Abscisic acid prepares plants to cope with stress conditions like drought, etc. by inducing stomatal closure and other reactions. Hence it is named stress hormone.

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