Ecology, Environment and Conservation Paper

Vol.29, Nov, Suppl, Issue, 2023; Page No.(S248-S254)

ESTIMATES OF VARIABILITY, CORRELATION AND DIRECT-INDIRECT EFFECTS AMONG YIELD AND ITS ALLIED ATTRIBUTES IN SORGHUM (SORGHUM BICOLOR (L.) MOENCH)

Gyan Pratap Singh Bhadouriya and Priyanka Gupta

Abstract

The present study was aimed to estimate the association and path analysis among 11 morphological and three physiological characters during kharif 2022 at Crop Research Centre, Department of Genetics and Plant Breeding, ITM University, Gwalior M.P. India. The study was carried out in Randomized Block Design in 3 replications for 30 sorghum varieties. Analysis revealed maximum positively significant association at phenotypic level between Grain yield per plant and dry fodder yield/plant (0.529) followed by green fodder yield/plant (0.518) respectively. At Genotypic level maximum positive and significant association was observed between Grain yield per plant and dry fodder yield per plant (0.538) followed by green fodder yield per plant (0.520). On the other hand, path analysis showed that at phenotypic level dry fodder yield per plant recorded the maximum direct effect (0.559) followed by panicle length (0.377), green fodder yield/plant (0.306) on grain yield/plant while the negative direct effect was maximum for days to 50% flowering (-0.343) followed by test weight (-0.183) and leaf temperature (-0.103). Similarly at genotypic level days to maturity recorded the maximum direct effect (1.975) followed by dry fodder yield per plant (0.721), number of leaves per plant (0.490), panicle length (0.244), stomatal count/microscopic field (0.139) while days to 50% flowering (-2.572) followed by transpiration rate (-0.171), test weight (-0.164), recorded the negative direct effect.