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The exploitation of valuable native timber species in forest restoration projects has emerged as a promising strategy to make restoration financially viable. There are few studies regarding the quality of timber from restoration plantations. The aim of this study was to analyze growth stresses by determining the longitudinal residual strain (LRS) and evaluate their correlation with the growth variables in the species Peltophorum dubium (Spreng.) Taub in a 14-year old restoration plantation. Eighteen individuals were evaluated, determining the following variables: diameter at breast height (DBH), bark thickness, average annual growth in diameter (IMA) and annual periodic growth in diameter (IPA 2012-2015 ). The LRS was determined by the extensometer (CIRAD-Forêt), on DBH height and in the north-south direction of each tree. The LRS average was 0.072 mm, within the range of expected wood values for sawmilling. There was a significant positive correlation between the LRS, DBH and IMA.

This study was to compare the behavior of five native Brazilian species: angelim (Andira anthelmia), a canela (Anila firmula), cedro (Cedrela fissilis), ipe amarelo (Tabebuia alba) e a muiracatiara (Astronium lecointein) through testing machining. It was made ten samples for each kind of dimensions following the U.S. ASTM D 1666-87. Still determined the apparent density of the wood (g.cm-3) based on the NBR 7190 in order to establish possible relations For machining tests, all species behave well with relation to the sanding and drilling for peg no significant differences between the grades obtained. However, the ipe submitted the worst result for the planing test and cedro due to its smaller apparent density obtained the worst result front of drilling tests. With respect to turning test, species of ipe and canela were rated as the best among the tested species. Overall, it was concluded that the species showed potentials of uses in furniture, frames and general finishing occasions.