Stability analysis over extended dates of sowing for yield and yield component traits in groundnut (Arachis hypogaea L)

Abstract

The experiment were taken up at three different dates of sowing of the year 2023 viz., E1 before onset of monsoon (12th June), E2 20 days after onset of monsoon (3rd July) and E3 40 days after onset of monsoon (24th July) for stability analysis on 30 groundnut genotypes for 10 quantitative characters. The material was evaluated in randomized block design with three replications at Experimental Farm College of Agriculture Latur. The mean square due to the genotype x environment interaction were significant for all the characters indicating the influence of environmental conditions on the genotypes evaluated. The mean square due to G x E (linear) were significant for all the characters except days to maturity. On further perusal of genotypes in relation to overall performance revealed that genotypes viz., NRCG-1513 and NRCG- 866 found average stable performance while, the genotypes NRCG-1399 and NRCG-1408 found stable or the better environmental condition for pod yield per plant and the genotypes NRCG-649, NRCG-557 and NRCG-1484 reported stable for poor environmental condition for pod yield considering the performance of stability parameters, genotypes could be used as parents in hybridization programme for commercial exploitation after their rigorous evaluation.