This research aims to investigate, with the aid of the Brazilian standard NBR 7190, analysis of variance (ANOVA—5% significance) and the regrouping bootstrap technique, the influence of the provenance regions Bonfim, Mucajaí and Claudia on the physical and mechanical properties (twenty properties and 720 determinations) of Angelim-pedra (Hymenolobium petraeum Ducke.) and to assess the possibility of estimating, via regression models (152 in all), the physical and mechanical properties investigated as a function of apparent density (ρ₁₂) and compressive strength parallel to the grain (f_c0). The results indicated equivalence in most of the physical and mechanical properties, evidencing the small influence of the tree harvest regions. From the regression models, some were considered significant by ANOVA (at the 5% level of significance), which implies that variations in ρ₁₂ and f_c0 explain variations in the values of the other estimated properties; however, the low precision indicates that it is not feasible to estimate the variables just based on the ρ₁₂ or f_c0.

这项研究旨在借助巴西标准NBR 7190，对方差分析（ANOVA-5％显着性）和重组自举技术进行研究，考察源区Bonfim，Mucajaí和Claudia对物理和机械性能的影响（ 20级性能和瓣豆-达佩德拉（720次测定）Hymenolobium petraeum Ducke。），并评估估计的可能性，通过回归模型（152种），物理和机械性能调查作为表观密度的函数（ρ ₁₂），并平行于晶粒的抗压强度（f _c0）。结果表明在大多数物理和机械性能上是等效的，证明树木采伐区的影响很小。从回归模型，一些被认为是由显著ANOVA（在显着性水平为5％），这意味着在ρ的变型₁₂和f _C0解释在其他估计属性的值的变化; 然而，该低精度指示它不是估计只是基于所述ρ变量可行₁₂或f _C0。