Among the renewable sources for bioenergy production, sorghum is a crop that has high energy potential and desirable agroindustrial characteristics. Thus, the objective of this work was to evaluate the adaptability and phenotypic stability of sweet sorghum hybrids and varieties to bioethanol production using the Annicchiarico and GGEbiplot methodologies in several environments. Twenty-five sorghum genotypes were evaluated in 10 sites distributed in the Southeast, Midwest, Northeast, and Southern regions of Brazil. The experimental design consisted of randomized complete blocks with three replicates. The evaluated parameters were fresh biomass yield (FBY, t.ha-1), total soluble solids (TSS, °brix) and total soluble solids yield (TSSY, t.ha-1). The analysis of variance showed significant differences (p <0.01) for the FBY, TSS and TSSY, for genotypes, and genotypes environments interactions (GxE). The Annicchiarico and GGEbiplot methods used for the study of adaptability and stability presented concordant results, and these methodologies can be used to select adaptable and stable genotypes to different environments in breeding programs. Hybrids B005 and B008 presented superior performance to the varieties, with similar classification by the two methods. Thus, these hybrids should be evaluated in additional years and environments, becoming alternatives to crop recommendations.
Keywords: Sorghum bicolor (L.) Moench; GxE Interaction; Annicchiarico; GGEbiplot