Selection of pineapple hybrids via genotypic values (REML/BLUP) for fruit mass and total soluble solids

Abstract

The ranking of hybrids via genotypic values stands out due to its maximum selective accuracy in relation to ordering based on phenotypic values, which incorporate environmental effects, causing changes in the final classification. The aim of this study was to pre-select cloned pineapple hybrids based on genotypic values for higher total soluble solids (TSS) and larger fruit mass without crown (FMWC). It was evaluated with 364 hybrids propagated vegetatively, in a Federer's Augmented Blocks. Genotypic values were estimated by REML/BLUP procedure. High proportion of the phenotypic variance was explained by genotypic effects, due to heritabilities in broad sense of 0.9786 (TSS) and 0.4929 (FMWC). IPA 04-60, IPA 125-363, IPA 125-85, and IPA 04-92 hybrids present FMWC greatest than 2.20 kg. IPA 125-218, IPA 125-95, IPA 125-188, and IPA 125-97 hybrids achieve TSS greatest than 20.0 °Brix. These hybrids exhibit promising traits to proceed a second evaluation cycle via vegetative propagation.