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ICAR JRF Seed Science And Technology 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
Evaluation of germplasm for quality traits are often misleading due to:
  • 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)
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