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NEETBotanyPlant - Growth and Development

Which of the following plant growth regulators is a gas?

Options

  1. AAbscisic acid (ABA)
  2. BEthylene (C2H4)
  3. CGibberellic acid (GA3)
  4. DIndole-3-acetic acid (IAA)

Correct answer

B. Ethylene (C2H4)

Step-by-step solution

The plant growth regulators (PGRs) are small, simple molecules of diversechemical composition . They could be indole compounds (indole-3-acetic acid, IAA); adenine derivatives (N6 -furfurylamino purine, kinetin), derivatives of carotenoids (abscisic acid, ABA); terpenes (gibberellic acid, GA3) or gases (ethylene, C2H4)

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