AMMI and GGE biplot analyses of adaptability and yield stability of advantage varieties of common winter wheat

Gergana Nikolova Desheva, Manol Georgiev Deshev, Evgeniya K. Valchinova, Bozhidar Nikolov Kyosev

Abstract: The creation of varieties that can be adapted to a wide range of environments is the crucial goal of plant breeders in wheat improvement programs. The primary objective of this study was to identify high-yielding, stable, and adaptive common winter wheat genotypes for breeding purposes by applying various statistical analyses. The study was conducted over four growing seasons in the experimental field of IPGR-Sadovo, Southern Bulgaria. In the study, 46 common winter wheat cultivars with different geographical origins were included. The experiments were arranged in a completely randomized block design with three replications on plots of 10 m². Combined analysis of variance (ANOVA) revealed that grain yield was significantly affected by the sources of variance: genotype (G), environment (E), and the genotype × environment interaction (GEI) (p < 0.001). Genotypes G16, G31, G14, G24, and G1 emerged as the most stable according to the parametric stability estimates analysis. Genotypes G14, G33, and G19 were considered generally adaptable to each environment according to AMMI1 analysis, while G19, G2, G35, G21, G4, and G32 were assessed as the most stable according to AMMI2 analysis. GGE biplot analyses identified G33, G14, G16, and G9 as the most favorable and adaptable to a wide range of environments that could be included in the standard winter wheat breeding programs.

Keywords: AMMI analysis; GGE analysis; stability parameters; wheat; yield

Citation: Desheva, G. N., Deshev, M. G., Valchinova, E. K. & Kyosev, B. N. (2025). AMMI and GGE biplot analyses of adaptability and yield stability of advantage varieties of common winter wheat. Bulg. J. Agric. Sci., 31(5), 940–950

Date published: 2025-10-28