Otros
Genetic variation for growth in a Eucalyptus pellita clonal population in Colombia
Fecha
2014Autor
Nieto Rodríguez, Víctor Manuel
Resumen
Eucalyptus pellita is one of the most important species being planted in the wet tropical conditions of the Orinoquia region in Colombia. A breeding and clonal program for the species has been implemented since 1993.The results presented here report the genetics of growth based on a large number of E. pellita clones, which have been mass selected in a previous provenance trial. The results indicate a substantial genetic variation for height and diameter growth, with within site H2 ranging between 0.20 and 0.42 and with a pooled estimate (across sites) of 0.14 and 0.24 for height and diameter, respectively. The expected genetic gains in volume from selecting the best clones would be around 32% in volume, over the control seedling’s seedlot, a significantly larger gain compared with previous estimates from BLUP selection in progeny trials.