Use of a Portable Near Infrared Spectrometer for Wood Identification of Four Dalbergia Species from Madagascar

Abstract

. This study focused on the use of Near InfraRed (NIR) Spectroscopy to address the lack of tools and skills for wood identi fi cation of Dalbergia species from Madagascar. Two sample sets of 41 wood blocks and 41 wood cores belonging to four Dalbergia species ( D. abrahamii , D. chlorocarpa , D. greveana , and D. pervillei ) were collected in the northern and western regions of Madagascar. Sapwood and heartwood NIR spectra were measured on wood at 12% moisture content by using a portable VIAVI MicroNIR 1700 spectrometer. Four discrimination models corresponding to sapwood and heartwood of the two sample forms were developed using Partial Least Square Discriminant Analysis (PLSDA).