Genotype-environment interaction of maize hybrids through ammi model at different location in Bangladesh

Abstract

Eighteen promising single crosses of maize and two check varieties (BHM-9 and 981) were assessed for genotype environment interaction (GEI) and stability for the selection of promising one(s) in three agro-ecological zones of Bangladesh. The AMMI (additive main effects and multiplicative interaction) model was used to analyze the GEI over three locations to select desired hybrid having higher yield and other potential attributes. Both genotypes (G) and environment (E) exhibited significant variation for all the characters studied. The environment of Gazipur and Ishwardi were poor but Dinajpur was favorable for the tested maize hybrids. Considering the mean, bi and S2di value, all the genotypes showed differential response of adaptability under different environmental conditions. Hybrids E12 (BIL28 × BIL96) and E15 (BIL95 × BIL79) showed the higher yield as well as stable across locations regarding response and stability parameters. Bangladesh J. Agril. Res. 48(3): 359-370, September 2023