Fig. 2From: An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. sinensisThe influences of grain angle and EC on NIR spectra of T. sinensis. In this graphs, sMC_angle: black solid line, the importance of variables for grain angle that selected by sMC; sMC_EC: red dash line, the importance of variables for EC that selected by sMC: SNV+1st: green dote line; Optimum wavenumbers selected: blue areaBack to article page