IJSRP, Volume 3, Issue 4, April 2013 Edition [ISSN 2250-3153]
Vijayalakshmi .P, Pavankumar.D, Sreelaxmi .A, Anuradha .G, Anuradha Ch
Correlation and path coefficient analysis were completed with 84 Pigeon pea genotypes to find out association among characters and to measure the direct and indirect contribution of ten characters on grain yield. The experiment was laid out in a Randomized Complete Block Design with three replications. The genotypic correlation studies indicated that grain yield per plant exhibited stable positive association with all traits except days of pod initiation ((-0.2191). While the phenotypic correlations revealed that days to pod initiation (-0.0125), pod length (-0.0177) and100 seed yield (-0.0475) were negatively correlated with grain yield per plant. The direct effects of phenotypic path correlation coefficient analysis revealed that the grain yield per plant had positive and significant correlation with number of seed per pod (0.0789) and it was followed by number of seeds per plant (0.7493) days to 50% of flowering (0.1812) plant physical maturity (0.0876), plant height (0.091) number of seed per pod (0.0789) & number of seeds per plant (0.7493) were positive and the rest effects of few characters were negative like days to pod initiation (-0.0406), primary (-0.0305), secondary braches (-0.0409 ), and number of pods per plant (-0.252 ). Path analysis revealed high positive and direct influence of number of seed per pod with seed yield per plant followed by number of seed per pod and number of pods per plant. Moreover, it was noticed that high indirect contribution was via grain yield per pod with most of the yield components. Hence, these two parameters (number of seed per pod and number seed per plant) should be given more consideration while deciding about selection criteria of genotypes for drought resistance.