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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Which one of the following is a set of natural growth regulators?

Options

  1. ANAA, IAA, IBA
  2. B2,4-D,IBA, BAP
  3. C2,4-D, ABA, Ethylene
  4. DIAA, ABA, Zeatin

Correct answer

D. IAA, ABA, Zeatin

Step-by-step solution

Plant growth regulators are growth promoter and growth inhibitors. Those which are naturally synthesized by plants are natural growth regulators. Certain chemical substance when applied to plants shows similar effect and are reffered as synthetic hormone.

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