Volume 6, Issue 6, December Issue - 2018, Pages:912-918
Authors: Pranesh, Ramesh S, Anilkumar C
Abstract: Crop cultivar performance varies with the production environments represented by temporal (years) and/or spatial (location) variation i.e., genotype × environment interaction (GEI). GEI is a norm rather than exception for most quantitative traits in crops including dolichos bean, one of the most important legume crops in India. Eight promising recombinant inbred lines (RILs) along with two released varieties were evaluated for fresh pods plant-1 and fresh pod yield plant-1 at four locations representing eastern and southern dry zones of Karnataka, India to detect and characterize RIL × location interaction and to identify those with specific and/or wide adaptation. AMMI model and GGE-biplot were used for graphical (visual) assessment of patterns of adaptability of RILs. AMMI II model was adequate to explain the interaction of RILs with locations. The genotypes, RIL 43 and RIL 80 are the best ones at Bengaluru and Hassan, respectively and RIL 52 was the best performer at Chintamani, RIL 77 was the best performer at Mandya for both the traits. The RIL 1, RIL 80 and RIL 111 were widely adapted across all the four locations although they were not significantly better than the released varieties. These RILs could be preferentially used to develop pure-line varieties with broad adaptation.