基于冠层光谱的早籼稻籽粒粗蛋白含量估测

田容才, 高志强, 卢俊玮

Estimation of Crude Protein Content in Grain of Early Indica Rice Based on Canopy Spectrum

Tian Rongcai, Gao Zhiqiang, Lu Junwei

表2 基于敏感波长的早籼稻籽粒粗蛋白含量估测

Table 2 The estimation of grain crude protein content of early indica rice based on sensitive wavelength

波长及组合Wavelength and its combination 估测模型Estimating model R2 RMSE (%) RE (%) R′514 y=4257.309R′514+5.885 0.503 0.366 3.294 R′580 y=-6997.267R′580+6.476 0.468 0.378 3.400 R′638 y=-10457.111R′638+7.341 0.538 0.353 2.870 R′695 y=1456.315R′695+6.021 0.462 0.380 3.465 (R′514,R′580) y=3253.278R′514-1841.650R′580+5.935 0.508 0.364 3.312 (R′514,R′638) y=1784.503R′514-6786.287R′638+6.566 0.560 0.344 2.962 (R′514,R′695) y=4186.184R′514+26.538R′695+5.882 0.503 0.366 3.295 (R′580,R′638) y=-2061.051R′580-7981.623R′638+6.946 0.548 0.349 2.967 (R′580,R′695) y=-3918.876R′580+691.696R′695+6.145 0.481 0.373 3.414 (R′638,R′695) y=-8410.792R′638+351.739R′695+6.911 0.544 0.350 2.967 (R′514,R′580,R′638) y=1881.122R′514+225.038R′580-6857.824R′638+6.567 0.560 0.344 2.956 (R′514,R′580,R′695) y=3623.759R′514-2138.226R′580-198.561R′695+5.968 0.508 0.364 3.309 (R′514,R′638,R′695) y=3087.336R′514-7494.482R′638-582.393R′695+6.712 0.565 0.342 2.868 (R′580,R′638,R′695) y=-1884.608R′580-7883.872R′638+53.229R′695+6.915 0.548 0.349 2.974 (R′514,R′580,R′638,R′695) y=2956.682R′514-562.819R′580-7375.90R′638-632.008R′695+6.721 0.566 0.342 2.874