Q.56
Genetics & Plant Breeding - ICAR JRF/SRF 2024
MCQ (Single Correct)
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)
Explanation not matching this question?
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