An important forest research challenge in the Amazonian is finding forms of reforesting degraded
areas with the use of a larger number of native species and identify tropical species commercially attractive
adapted to clear-cut areas. This work had as objectives to evaluate the initial growth in diameter and height
of six native Amazonian species in a preliminary species trial. The data were obtained from measures of 72
trees 9 years after planting. The selected species for this study were cupiúba (
Goupia glabra
), cumaru
(
Dipterix odorata
), andiroba (
Carapa guianensis
), brazil nut (
Bertholletia excelsa
), pará-pará (
Jacaranda copaia
) and tatajuba (
Bagassa guianensis
). The cumulative growth curves for diameter and height was
obtained by the Chapman – Richards function. In spite of the low age of the stands, it was obtained good fit
to the function for the studied species. Pará-pará (
Jacaranda copaia), presented best diameter and height
growth in all the ages. The diameter mean annual increment analysis showed that, except for the cupiúba
(
Goupia glabra), can be expected increments larger than 2 cm, by appropiate spacings and thinning.
