AMMI and GGE biplot analysis to evaluate the phenotypic stability of recombinant inbred lines (RILs) of peanut under mid-season water stress conditions

Abstract

In a two-year experiment 186 recombinant inbred lines (RILs) derived from TAG-24 and TMV-2NLM cross were grown under water stress (WS) and without water stress (WWS) to identify stable high yielding genotypes and genotypes with high WUE using SLA, SCMR or WSD under drought. Genotypes PBS-40107, PBS-40110, PBS-40114, PBS-40117, PBS-40152, PBS-40159 and PBS-40521 had high yield under both WS and WWS conditions. Mean values for SCMR and WSD increased under WS whereas SLA, HI, PY and KY increased under WWS condition. Genotypes PBS-40616 and PBS-40110 were identified as stable high yielders by AMMI, GGE and simultaneous selection index (SSI) and could be cultivated under drought stress and alternatively could be used in breeding programs.