selecting superior groundnut (arachis hypogaea l.) genotypes using multi-trait selection indices

Objective: groundnut (arachis hypogaea l.) is an annual oilseed and proteinous crop whose production is mainly affected by genotype × environment interactions, making it hard to select superior genotypes. the multi-trait selection indices have been used to choose genotypes based on multiple traits.methods: in this study, 11 groundnut genotypes were evaluated based on a randomized complete block design with three replications in three locations, talesh, masal, and rasht, guilan province, iran, during two growing seasons (2019-2020 and 2020-2021). variance components were estimated using the restricted maximum likelihood method, and factor analysis was applied to grouping the traits. multi-trait genotype-ideotype distance index (mgidi) and ideal genotype selection index (igsi) were calculated to select superior genotypes using 16 agronomical characteristics.results: although by considering the 30% selection intensity, the genotypes selected by the mgidi and igsi indices in the three locations were somewhat different, the icg192 groundnut genotype was selected as a superior genotype in all three areas based on both mgidi and igsi indices.conclusion: the results revealed relative compliance between the mgidi and igsi indices in the selection of superior genotypes, and they may be used for genotype selection based on multiple traits.