Genotype x Environment Interaction and Stability Analyses of Different Characters of Green Gram Genotypes
Ashok Pachar *
Department of GPB, School of Agriculture, SGVU, Jaipur, India.
A.S. Shekhawat
Department of GPB, School of Agriculture, SGVU, Jaipur, India.
R.S. Sain
Department of GPB, School of Agriculture, SGVU, Jaipur, India.
L.S. Dhayal
Department of GPB, School of Agriculture, SGVU, Jaipur, India.
M. K. Jat
Department of Plant Pathology, School of Agriculture, SGVU, Jaipur, India.
*Author to whom correspondence should be addressed.
Abstract
An experiment was conducted at Research Farm Suresh Gyan Vihar university, Jaipur on 25 genotypes of Green gram (Vigna radiata (L.) Wilczek) in Randomized Block Design with three replications over three artificially created environments during kharif 2022 to estimate stability parameters for days to 50 per cent flowering, days to maturity, plant height (cm), branches per plant, clusters per plant, pods per cluster, pods per plant, pod length (cm), seeds per pod, seed yield per plant (g) and test weight (g). Mean sum of square due to genotypes were significant for all the traits in all the environments. The stability analysis was carried out according to Eberhart and Russell model (1966). Genotype x Environment interaction was significant for all the characters except pods per plant. Environment + (Genotype x Environment) component were non-significant for all the characters. The pooled deviations were significant for days to 50 per cent flowering, days to maturity, plant height (cm) and clusters per plant. Genotypes RMG-1098, RMG-1136, RMG-1097, ML-818, RMG-976, RMG-1078, IPM 410-3, RMG-1099, LOCAL. RMG-1095 were found stable for seed yield per plant. Genotypes RMG-1142, RMG-1096, RMG-1082, RMG-989 and RMG-1077 were suitable for better environments.
Keywords: Environment, genotypes, stability, greengram