Generalized AMMI (GAMMI) model has been widely used to model the Genotype × Environment Interaction (GEI) with categorical (or in general, non-normal) response variables. It was developed by introduce the concept of Generalized Linear Model (GLM) into Additive Main Effect & Multiplicative Interaction (AMMI) model. GAMMI model will provide two major results (i) the stability analysis of some g…