O objetivo deste estudo foi analisar o efeito do espaçamento na forma dos fustes de árvores de
Pinus taeda L. Empregaram-se dados de um experimento sobre espaçamento inicial realizado na empresa IGARAS,
localizada no Planalto Serrano do Estado de Santa Catarina, no Sul do Brasil. Os espaçamentos analisados
foram: 1,5 x 1,0 m; 2,0 x 1,0 m; 2,5 x 1,0 m; 1,5 x 2,0 m; 2,0 x 2,0 m; 1,5 x 3,0 m; 2,5 x 2,0 m; 2,0
x 3,0 m; e 2,5 x 3,0 m. Foram testados os modelos de afilamento propostos por Demaerschalk, Garay e Biging,
sendo selecionado o modelo de Garay. Por meio de testes de identidade de modelos, verificou-se que os espaçamentos
menores resultaram em forma menos cônica que os maiores.
The objective of this study was to analyze the effect of spacing on the stem shape of Pinus taeda
L. trees. Data from a spacing experiment carried out at the company IGARAS, in Santa Catarina, Brazil,
were used for this purpose. The analyzed spacings were: 1.5 x 1.0 m; 2.0 x 1.0 m; 2.5 x 1.0 m; 1.5 x 2.0
m; 2.0 x 2.0 m; 1.5 x 3.0 m; 2.5 x 2.0 m; 2.0 x 3.0 m; and 2.5 x 3.0 m. The taper models tested were those
proposed by Demaerschalk, Garay and Biging, with the model of Garay being selected. Through model identity
tests, it was verified that the smallest spacings resulted in less conical shape than the largest ones.
