Resumo

ORTEGA CEDILLO, Digner et al. Estimates of parameters, prediction and selection of an oil palm population in Ecuador. Rev. Fac. Nac. Agron. Medellín [online]. 2018, vol.71, n.2, pp.8477-8487. ISSN 0304-2847.  https://doi.org/10.15446/rfna.v71n2.71928.

Was used the REML/BLUP method to estimate the genetic parameters, select the best plants of Dura x Dura full-sib families, study the trait correlations, group families by multivariate similarity and to determine the number of repeated measurements required for the selection of the traits (bunch number, fresh fruit bunch yield and average bunch weight). Twenty-four families developed in three trials were tested, together with one control per test from the genebank of the experimental station of Santo Domingo - INIAP in Ecuador. The evaluation lasted five years and was arranged in a randomized block design with 12 plants per plot and four replications. The population variability for traits and genetic heritability between plots was close to that found within plots. The genetic gain of the 10 selected plants, was 43% higher than the overall average. The correlation was low and negative only between bunch number and average bunch weight. By Tocher cluster analysis, six groups were formed, and in group IV, families selected by average ranking (3A, 5C and 7B). It was concluded that the BLUP estimates are encouraging with a view to a continuous breeding program of oil palm, with the possibility of maximizing genetic gains in future generations.

Palavras-chave : Elaeis guineensis Jacq; Genetic parameters; Blup; Clusters; Selection index.

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