Question:
In most situations, hormone acts as antagonist to Gibberellins:
In most situations, hormone acts as antagonist to Gibberellins:
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GA promotes germination.
ABA promotes dormancy.
Hence ABA and GA generally act antagonistically.
ABA promotes dormancy.
Hence ABA and GA generally act antagonistically.
Updated On: Jun 17, 2026
- Naphthalene acetic acid
- Indole butyric acid
- Kinetin
- Abscisic acid
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The Correct Option is D
Solution and Explanation
Concept:
Plant hormones frequently show antagonistic actions.
Step 1: Recall functions of Gibberellins.
Gibberellins promote:
• Stem elongation
• Seed germination
• Breaking dormancy
Step 2: Recall functions of ABA.
Abscisic acid promotes:
• Dormancy
• Stomatal closure
• Growth inhibition These actions oppose gibberellins. Therefore: \[ \boxed{\text{ABA is the antagonist of Gibberellins}} \]
Step 1: Recall functions of Gibberellins.
Gibberellins promote:
• Stem elongation
• Seed germination
• Breaking dormancy
Step 2: Recall functions of ABA.
Abscisic acid promotes:
• Dormancy
• Stomatal closure
• Growth inhibition These actions oppose gibberellins. Therefore: \[ \boxed{\text{ABA is the antagonist of Gibberellins}} \]
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