The commercial plantings of Pinus were established in Brazil for over 30 years, initially in the South and Southeast. However, with the introduction of tropical species, became feasible in the whole country. Considering the importance of obtaining parameters to assess growth and the potential production of Pinus, the present work aims to adjust traditional models of hypsometric relation to species Pinus caribaea Morrelet var. hondurensis Barret & Golfari and Pinus tecunumanii Eguiluz & Perry, in pure stand, in the municipality of Vilhena, Rondônia State. Ten models were adjusted and the selection criteria followed the lower standard error of estimate (Syx%), higher adjusted coefficient of determination (R²aj.), F value and regression coefficients significant and graphical analysis of the residues. The model <img border=0 width=287 height=96 src="../../../../../img/revistas/cr/v40n12/a10img01.gif">showed the better fit, with R²aj. of 0,896 and Syx% of 3,941% for P. caribaea var. hondurensis and R²aj. of 0,973 and Syx% of 6,319% for P. tecunumanii.
hypsometric models; height; height
