基于小波分析的水稻籽粒直链淀粉含量高光谱预测

张骁, 闫岩, 王文辉, 郑恒彪, 姚霞, 朱艳, 程涛

Application of continuous wavelet analysis to laboratory reflectance spectra for the prediction of grain amylose content in rice

ZHANG Xiao, YAN Yan, WANG Wen-Hui, ZHENG Heng-Biao, YAO Xia, ZHU Yan, CHENG Tao

表4 水稻抽穗后各生育时期米粉或干穗光谱指数与籽粒直链淀粉含量的相关性

Table 4 Coefficient of determination (R2) values for the relationships of NDAI with GAC at post-heading stages in rice

生育时期 Growth stage 米粉Dried grain powder 干穗Dried panicle 光谱参数 Spectral feature 决定系数 R2 光谱参数 Spectral feature 决定系数 R2 乳熟期Milk stage — — NDAI1760,1585 0.59** 蜡熟期Dough ripening stage NDAI1505,1455 0.61** NDAI1835,1810 0.60** 黄熟期Yellow ripening stage NDAI1345,1210 0.39** NDAI2265,2135 0.70** 完熟期Full ripening stage NDAI1600,1430 0.49** NDAI1290,1175 0.64**