PJB-2019-452
Genetic variability, correlation and principal component analysis for agronomic traits in lentil genotypes
Dr. Muhammad Ejaz
Abstract
Abstract: The research was carried out in a complete randomized block design with three replications with 15 lentil genotypes were evaluated for 7 agro morphological characteristics. A wide range of divergence of plant characteristics were recorded for the lentil genotypes. The parameters (Days to Flowering 50%, Days to Maturity 50%, Plant Height, Biological Yield, Grain Yield, Harvest Index, 100 Seed Weight) showed significant differences at (P ≤ 0.05) significant level. The promising genotype ILL11 (918.9 Kg ha-1) and ILL8081 (847.4 Kg ha-1) were the highest yielders respectively. Correlation and PCA was conducted on 15 lentil genotypes over one year for 7 characters. Harvest Index (0.807) and biological yield (0.389) showed positive significant correlation with seed yield and non-significant positive correlation with seed yield was recorded for plant height (0.062). Negative non-significant correlation was recorded for days to flowering (-0.248) and days to maturity (-0.312). The three principal components accounted for 82 % of the total variation. PC1 was positive correlate with the flowering duration , days to maturity, plant height and 100 seed weight and was negatively correlated to biological yield, seed yield and harvest index. PC2 was positively correlated with grain yield and harvest index. PC3 was positively related to days to flowering, harvest index and 100 seed weight. Following the analysis of the agronomic characteristics over the first and second principal components, the lentil genotypes formed 4 different groups.
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