详细信息
An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. sinensis ( SCI-EXPANDED收录) 被引量:3
文献类型:期刊文献
英文题名:An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. sinensis
作者:Li, Yanjie[1] Dong, Xin[1] Sun, Yang[1] Liu, Jun[1] Jiang, Jingmin[1]
第一作者:李彦杰
通信作者:Liu, J[1]
机构:[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Zhejiang, Peoples R China
年份:2020
卷号:16
期号:1
外文期刊名:PLANT METHODS
收录:;WOS:【SCI-EXPANDED(收录号:WOS:000538064200001)】;
基金:This work was funded by Zhejiang Science and Technology Major Program on Agricultural New Variety Breeding (No. 2016C02056-12) and National Natural Science Foundation of China (No. 31570658).
语种:英文
外文关键词:Near infrared spectroscopy; Heartwood; Grain angle; Toona; sinensis
摘要:Background A fast, reliable and non-destructive method is needed to qualify the extractives content (EC) in heartwood of T. sinensis cores in the breeding program for studying the genetic effect on EC. However, the influence of grain angle on near infrared (NIR) spectra prediction model for EC is unclear. In this study, NIR spectra were collected from both cross section and radial section of wood core samples in order to predict the EC in heartwood. Results The effect of grain angle on calibration EC model was studied. Several different spectra pre-processing methods were implemented for calibration. It was found that standard normal variation (SNV) followed by 1st derivative yielded the best calibration result for T. sinensis EC. Grain angle had a significant influence on the predicted model for EC when using the whole NIR spectra. However, after testing a certain point of the prior variables for EC that were selected by the significant multivariate correlation (sMC), the influence of grain angle was significantly eliminated. Conclusions It is suggested that NIR spectroscopy is a promising method to predict EC in the solid wood without effecting grain angle.
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