Abstract
Simultaneous selection for yield, adaptability, and temporal stability can be accomplished through the harmonic mean of the relative performance of predicted genetic values (HMRPGV). In this study, we aimed to select half-sib progenies of guarana regarding these three attributes for the development of a cultivar. Thirty six half-sib families of guarana were evaluated in a complete randomized block design with two replications and six plants per plot, with spacing of 5 × 5 m. Production system and fertilization were performed according to Embrapa. The production of progenies was measured in five consecutive years, from 2006 to 2010. The genetic value (μ+g+gem) capitalizing the average effect of the interaction should be considered for genotype selection in environments with G×E interaction pattern different from the conduction of the experiment. The criteria RPGV (stability) and HMGV (adaptability) generated similar results for the top five progenies. The criterion HMRPGV generated different results for the top five progenies regarding criteria RPGV and HMGV. HMGV is the criterion that best fits the conditions of this experiment to select the best progenies.
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