Question:

Wilting of leaves is due to which phytohormone?

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Abscisic acid causes stomatal closure to prevent water loss, leading to leaf wilting under drought conditions.
Updated On: Oct 28, 2025
  • Ethylene
  • Abscisic acid
  • Cytokinin
  • Auxin
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the function of abscisic acid. Abscisic acid is known as the stress hormone in plants. It induces leaf wilting and helps plants conserve water by closing stomata.
Step 2: Explanation of incorrect options.
- Ethylene regulates fruit ripening.
- Cytokinin promotes cell division.
- Auxin is involved in cell elongation and growth.
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