DESEMPENHO DE PROGÊNIES DE AÇAIZEIRO PELO GGE BIPLOT

The interest in the assai fruits in other regions of the country makes it necessary for genetic improvement for the species. The GGE Biplot method was employed with the objective of evaluate the behavior of 30 assai palm genotypes from the municipality of Anajas and cultivated in Tome-Acu, Para, by the GGE biplot, in a randomized block experimental design, three replicates and five plants per plot, considering years as environments. Were evaluated the characteristics: total fruit weight (PTF), in grams; total number of clusters (NTC) and; total weight of the bunches (PTC). Obtaining as conclusions that, distinct genotypes stood out approaching more of the ideotype, through the stability and adaptability, especially G10 to PTC, PTF and NTC; the genotypes with higher average values have less stability, except G10 in PTC and PTF; the GGE biplot allow  to view the distribution, the inter-relationship with environmental effects and choose superior genotypes;. for PTC the environment that best allows differentiating the genotypes is A3; for PTF it is A2 and for NTC it is A1; as for the average environment, which represents an average among all environments, the A1 and A2 are best for PTC; A1 for PTF; whereas it is A2 for NTC. Keywords: Euterpe oleracea , interaction genotypes x environments, plant breeding, stability, adaptability.