Comportamento de progênies de cafeeiro Icatu

Abstract

Adaptability and stability evaluations of coffee (Coffea arabica L.) progenies are an important stage prior to the recommendation of new lines. The objective this study was to evaluate bean productivity per biennium in 14 progenies from Icatu cultivar in 12 environments in southern Minas Gerais State, Brazil. The experiments were carried out in the counties of Machado and São Sebastião do Paraíso, in the experimental stations of EPAMIG. The progenies x biennium x locations interaction was significant, justifying the use of phenotypic stability methodologies for classification of progenies. Stability analyses were performed according to Annicchiarico (1992) and Lin & Binns (1988). Progenies Icatu IAC–4040–181, Icatu IAC–4040–315, Icatu IAC–4042–114, Icatu IAC–4042–222 and Icatu IAC–4045–47 stood out as the most promising concerning adaptability and stability, as well in yield potential (productivities between 53.68 and 59.35 bags of 60 kg/ha /biennium). On the other hand, Catuaí IAC–44 and Mundo Novo IAC–379–19, included within the progenies evaluated in this study, were classified as unstable progenies.