Seed Processing

• Evaluation of Germplasm Quality Traits:
• Genotype $\times$ Environment ($G \times E$) Interactions: Quality parameters (such as protein content, oil percentage, aroma, and baking quality) are polygenic traits exhibiting high environmental sensitivity and significant $G \times E$ interactions.
• Secondary Metabolite Biosynthesis: Expression of phytochemicals, alkaloids, and flavonoids is heavily modulated by microclimate, temperature, moisture stress, and solar radiation.
• Field Comparability: Standardized non-replicated evaluation plots often fail to provide comparable environmental conditions for sensitive quality traits.
• Conclusion: Statements 1, 2, and 3 are all major reasons why single-environment germplasm quality evaluations can be misleading. (Correct answer: Option 4)

• Classification of Dwarf Wheat Varieties:
• Single-gene dwarfs: Sonalika, Lerma Rojo 64A, Sujata ($Rht-B1b$ or $Rht-D1b$).
• Two-gene dwarfs: Kalyan Sona, Sonora-64, Chhoti Lerma ($Rht-B1b + Rht-D1b$).
• Three-gene dwarfs (Triple dwarfs): Moti (HD 1949), Hira (HD 1941), and UP 301 ($Rht-B1b + Rht-D1b + Rht8/Rht-B1c$).
• Conclusion: Moti is a three-gene dwarf variety, not a two-gene dwarf. (Correct answer: Option 4)

• Physiological Disorders and Nutrient Interactions in Seed Crops:
• Pea (Pisum sativum): Susceptible to hollow heart and bleaching; high nitrogen application leads to bleaching of pea seeds and reduces storability $\rightarrow$ (I)
• Turnip (Brassica rapa): Boron deficiency leads to brown heart (water core/rot) in cruciferous root crops $\rightarrow$ (II)
• Bean (Phaseolus vulgaris): Manganese deficiency causes marsh spot characterized by necrotic brown spots on internal cotyledon surfaces $\rightarrow$ (III)
• Beetroot (Beta vulgaris): Boron deficiency leads to heart rot and internal black spot $\rightarrow$ (IV)
• Systematic Match: (A)-(I), (B)-(II), (C)-(III), (D)-(IV) corresponds to Option 4.

Correct option: (4) (A) - (1), (B)~ (I), (C) - (ill), (D)- (V)