Question:
Which phytohormone is regarded as an anti-stress promoter and growth bio-stimulator?
Which phytohormone is regarded as an anti-stress promoter and growth bio-stimulator?
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Melatonin functions as an endogenous antioxidant in plants, enhancing the overall stress-tolerance mechanisms.
Updated On: Jul 10, 2026
- Jasmonic acid
- 1-MCP
- Melatonin
- Prohexadione - Ca
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Plant hormones regulate various developmental processes and help plants adapt to abiotic and biotic stress environments.
Step 2: Detailed Explanation:
Melatonin has been established as an important phytohormone that acts as a growth regulator and direct free-radical scavenger.
It assists plants in tolerating drought, extreme temperature, and heavy metal toxicities, which is why it is widely regarded as an anti-stress promoter and growth bio-stimulator.
Step 3: Final Answer:
Hence, Melatonin is the correct answer.
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