Simultaneous selection index based on yield, stability and resistance to wilt for desi chickpea in North West Plain Zone of India

Development and use of high-yielding genotypes, resistant to the prevalent race of wilt (Fusarium oxysporum L) in a given area is the most practical and cost-efficient disease control measure and is accorded priority for promoting entries to in next level of evaluation trial in national coordinated evaluation programs. Taking consideration of wilt infestation along with genotypic stability and average yield, an index has been developed and computed to rank the chickpea genotypes for the promotion of genotypes in next level of the trial. Average yield, genotypic stability and percentage wilt infestation are three components in this index. For stability component additive main effects and multiplicative interaction (AMMI) model is used. Based on the AMMI model, this index has been used to rank the genotypes along with wilt infestation and average yield. This index is the weightage of wilt infestation, genotypic stability and yield component and higher the index value better is the genotypes.