Association and path co-efficient analysis among leaf yield and it's component in coriander (Coriandrum sativum L.) genotypes

An investigation was carried out in Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore during 2015–2016 rabi season for evaluation of Coriander (Coriandrum sativum L.) genotypes for growth, leaf yield and quality. The experiment was laid out in the Randomized Block Design with 30 genotypes and replicated thrice. The study revealed that the relationship of characters implied that plant weight showed a significant positive association with the number of shoots per plant and leaf weight. Maximum significant positive genotypic and the phenotypic correlation coefficient was significantly recorded for leaf weight and stem weight with the number of shoots per plant respectively. Path analysis investigation on plant weight revealed that the leaf weight and the number of shoots per plant recorded very high positive direct effect on plant weight. But for the traits, stem weight, plant height and the number of leaves registered negative direct effect. The residual effect was observed to be high. Therefore, greater emphasis should be given on these characters while selecting for higher leaf yield and related traits.