Seed Storage

• Indian Minimum Seed Certification Standards (IMSCS) for Germination Percentage:
• Sweet Corn Hybrids: Minimum germination standard for certified seed is $75\%$ $\rightarrow$ (I)
• Wheat (Triticum aestivum): Minimum germination standard for certified seed is $85\%$ $\rightarrow$ (II)
• Maize Inbred Line: Minimum germination standard is $80\%$ $\rightarrow$ (III)
• Sorghum (Sorghum bicolor): Minimum germination standard for certified seed is $80\%$ $\rightarrow$ (IV)
• Systematic Match: (A)-(I), (B)-(II), (C)-(III), (D)-(IV) corresponds to Option 4.

Correct option: (4) (A) - (1), (B) - (M), (C) - (ll), (D) - (IV)

• Calculation of Pure Live Seed (PLS) / Effective Quantity:

$$\text{Pure Live Seed (PLS) } (\%) = \frac{\text{Purity } (\%) \times \text{Germination } (\%)}{100}$$ $$\text{PLS } (\%) = \frac{98 \times 85}{100} = 83.3\%$$

• Effective Quantity in 5 kg Bag:

$$\text{Effective Seed Quantity} = 5\text{ kg} \times \frac{83.3}{100} = 4.165\text{ kg} \approx 4.17\text{ kg}$$

• Conclusion: The effective quantity of viable, pure seed is 4.17 kg. (Correct answer: Option 4)

• Assertion (A) is True: In hybrid cotton seed production, when hybrids are synthesized via manual hand emasculation and pollination (the "Doak" method), a fourth field inspection during flowering and boll maturation is mandatory to detect selfed bolls.
• Reason (R) is True: Hand emasculation and pollination relies entirely on human manual labor, where inadvertent incomplete removal of anthers or contamination during corolla removal leads to accidental self-pollination and production of selfed seeds.
• Relationship: Because accidental human errors during manual operations inevitably cause selfing, a mandatory fourth inspection must be conducted to identify selfed bolls and verify genetic purity before harvest; thus, Reason (R) directly explains Assertion (A).
• Conclusion: Both (A) and (R) are true and (R) is the correct explanation of (A) (Option 1).

Correct option: (1) Both (A) and (R) are true and (R) is the correct explanation of (A)