Selection of cupuassu tree clones for fruit quality

Abstract

This study aimed to evaluate the potential of cupuassu tree genotypes based on the physical characterization of the fruit and the physical-chemical properties of the pulp. We used cupuassu tree clones from a field trial installed in the municipality of Tomé Açu, Pará, Brazil. The data obtained from the characterization were submitted to univariate and multivariate analysis of variance by the methods of principal components, correlation networks and established the divergence between the genotypes. The results showed that clone 46 had the highest seed and pulp masses, as well as fruits that excelled in average length, when compared to clones 32 and 61. Regarding vitamin C contents, clones 46, 61, 63 were superior compared to the other genotypes studied. These same clones, along with the 32 presented values higher than the quality reference standard proposed by the legislation in force. Thus, the tested clones presented characteristics suitable both for the pulp market (46, 61 and 64) and for the cupulate industry (32, 42 and 46), with pulp quality indexes higher than those determined by the Brazilian legislation.