ESTIMATIVAS DE PARÁMETROS GENÉTICOS PARA LA SELECCIÓN DE CLONES DE EUCALYPTUS EN LA REGIÓN DE BOTUCATU, SP 1 PREDICTION OF GENETIC PARAMETERS FOR SELECTION OF CLONES OF EUCALYPTUS IN BOTUCATU, SP

This work deals with the study of estimates of quantitative genetic parameters in a clonal assay for the early selection of superior clones of Eucalyptus and subsequent commercial planting. Thus, the aim of this study was to estimate the genetic variability and to determine the genetic correlations between the ages of clonal selection in a trial in the city of Botucatu, SP. The experiment was installed in a completely randomized design blocks (4) and 23 clones (21 treatment and 2 controls). The plots were formed by 25 plants with spacing of 3 x 2 m. Silvicultural traits as plant height, diameter at breast height - DBH and timber volume were evaluated at 24, 36, 48 and 60 months after planting. The analysis of genetic parameters was carried out with the statistical program GENES. Significant differences were observed for all traits in the analysis. High and significant correlations were observed between the traits, indicating that early selection can provide genetic gains up to 34%. Clones 18, 20 and 22 had the highest volume estimates for wood, showing potential to be exploited in breeding programs and commercial plantations, providing good levels of productivity for the region of Botucatu, SP.

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