Comparative study on the stability and adaptability of different models to develop a high-yield inbred line from landrace rice varieties

Multilocation trials are important in plant breeding carried out the field of agronomy. A combination agronomy and is needed to improve characteristics stability testing before releasing new varieties. single analysis method may not be sufficiently representative determine performance genotypes across environments, which sometimes lead wrong decisions about genotype stability. The objective this study was estimate yield potential, adaptability, superior lines resulting from inbred landraces based on parametric nonparametric, a main effect G × E interaction (GGE) biplot. Fourteen Bengkulu landrace rice varieties were evaluated five environments January 2019 November 2020. experiment conducted using complete randomized block design with two replications. results showed that highest grouping heat-map, G13(BKL4-B1-268-10), G10(BKL2-B3-264-6), G7(BKL1-B3-261-3), G5(BKL1-B1-259-1), found Sungai Serut. There strong positive correlation (r = 1.00) between mean (Yi) YSi, S2di Di, Wi2 StabVar. Meanwhile, occurred top third ranks (TOP) had 0.78, indicating suitable parameter identify high-yield genotypes. four consistently stable nonparametric analyses: G5(BKL1-B1-259-1). GGE approach methods consistent stability, G6(BKL1-B2-260-2) wide recommended for further as candidates