Question:
Chemical used in seed pre-treatment to overcome the drought is ______________.
Chemical used in seed pre-treatment to overcome the drought is ______________.
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While GA is for dormancy, $H_2O_2$ or Calcium chloride are common "hardening" treatments to prepare plants for drought stress.
Updated On: Aug 20, 2026
- Fungicide
- Salt
- Hydrogen peroxide
- Gibberellic acid
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
Seed pre-treatment or "priming" involves soaking seeds in specific chemical solutions to improve their resilience to abiotic stresses like drought.
Step 2: Detailed Explanation:
• Hydrogen peroxide ($H_2O_2$) is widely used in low concentrations for seed priming.
• It acts as a signaling molecule that triggers the plant's internal antioxidant defense systems.
• Pre-treating seeds with $H_2O_2$ has been shown to improve germination rates, seedling vigor, and drought tolerance by enhancing the plant's ability to manage oxidative stress during water shortages.
• Gibberellic acid (D) is primarily used to overcome internal physiological dormancy.
Step 3: Final Answer:
The chemical used is Hydrogen peroxide.
Seed pre-treatment or "priming" involves soaking seeds in specific chemical solutions to improve their resilience to abiotic stresses like drought.
Step 2: Detailed Explanation:
• Hydrogen peroxide ($H_2O_2$) is widely used in low concentrations for seed priming.
• It acts as a signaling molecule that triggers the plant's internal antioxidant defense systems.
• Pre-treating seeds with $H_2O_2$ has been shown to improve germination rates, seedling vigor, and drought tolerance by enhancing the plant's ability to manage oxidative stress during water shortages.
• Gibberellic acid (D) is primarily used to overcome internal physiological dormancy.
Step 3: Final Answer:
The chemical used is Hydrogen peroxide.
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