In which type of the selection, the yield of each of the five... | Agrigyan

• Ex-situ vs. In-situ Germplasm Conservation:
• Ex-situ Conservation: Preservation of genetic material outside its natural ecological habitat. A Field Gene Bank is an ex-situ repository where live accessions of vegetatively propagated crops and perennial tree species are maintained under field cultivation.
• In-situ Conservation: On-site conservation in natural habitats, including National Parks, Biosphere Reserves, and Gene Sanctuaries. (Correct answer: Option 2)

• Interdependence Models in Multivariate Statistics:
• In multivariate analysis, interdependence techniques treat all variables simultaneously as mutually interdependent without designating any as dependent or independent.
• Principal Component Analysis (PCA) and Factor Analysis are the classic interdependence models used for dimensionality reduction and ordination.
• Dependence Models: Multiple regression, Canonical correlation, and Discriminant function analysis partition variables into independent predictors and dependent criteria. (Correct answer: Option 1)

• Statement (I) is False: The Least Significant Difference (LSD) test (Fisher's protected LSD) is strictly valid only for planned pairwise comparisons decided a priori before examining the experimental data; applying it to all possible unplanned pairwise comparisons leads to severe inflation of the experiment-wise Type I error rate.
• Statement (II) is False: Duncan's Multiple Range Test (DMRT) and Tukey's Honestly Significant Difference (HSD) test were specifically formulated for unplanned, post-hoc pairwise comparisons across all treatment means, adjusting critical values to control the experiment-wise error rate.
• Conclusion: Both Statement (I) and Statement (II) are false (Option 2).

Correct option: (2) Both Statement (I) and Statement (II) are false.