Colorimetry of Acacia mangium wood from plantations in northeast Brazil

Abstract The aim of this study was to evaluate color characteristics in wood samples from Acacia mangium a homogeneous plantation Bahia state, northeast Brazil, and also analyze the influence anatomical section radial position trunk on response contribute information for best use wood, such as, example, optimization performance pieces sawmill through most acceptable aesthetic form by final consumer. Six trees with age 14 years were cut. species identified analysis at Laboratory Wood Anatomy Federal University Paraná, comparing sample collected authenticated material. A disc base each tree divided into six oriented sections (transversal, tangential), dimensions 20 × 30mm, named near pith, intermediate bark. total 36 evaluated, 12 position. colorimetric evaluation performed CM-5 spectrophotometer. Data lightness, green-red blue-yellow chromatic coordinates obtained, values saturation hue angle calculated. planted forest is classified as olive color. Color parameters influenced trunk, being found 44 transversal section, 55 tangential 57 luminosity. Transversal had lower comparison longitudinal surfaces higher luminosity than sections. bark region presented parameters, except angle, pith regions, which around 70 different positions wood.