Author(s): A. VERMA AND G. P. SINGH

Abstract: Highly significant effects of environment (E), GxE interaction and genotypes (G) was observed by AMMI analysis during 2018- 19 and 2019-20 study years. WAASB measure assessed the stable behaviour of genotypes as least deviated from the average yield across environments. Genotypes DDW47 and MP3288 would be more suitable as compared to UAS466 by WAASB measure for the first year. Superiority index obtained as weighted average of stability and yield of genotypes identified DDW47 and HI8627 in comparison to DBW110, though the yield ranked DBW110 and MP3288 of higher order. Adaptability measures PRVG and MHPRVG settled for DBW110 and MP3288 wheat genotypes. Negative correlations values were exhibited by SI with most of the considered measures. More over WAASB measure expressed all most direct relationships with other measures. Value of WAASB for the second year of study found suitability of UAS466, DDW47 and HI8627 wheat genotypes. Superiority index pointed towards HI8823, MP3288 and UAS472 as of stable performance. Strong direct relations were expressed by SI values. WAASB had also expressed direct relations. Simultaneous use of AMMI analysis and yield in stability measures would be more meaningfull and useful as compared to measures based on either the AMMI or yield only.

DOI: 10.22271/09746315.2021.v17.i2.1466

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