Table 3.
Calibration models of leaf water content corresponding to four different arithmetics using the whole and 75 sensitive wavelengths in Miscanthus.
| Wavelength | Model | Full cross-validation | Testing set validation | ||
|---|---|---|---|---|---|
| rc2 | SEC | rp2 | SEP | ||
| 400–2,500 nm | PLS | 0.9051 | 1.4747 | 0.9165 | 1.3118 |
| Lin_LSSVR | 0.9857 | 0.7504 | 0.9259 | 1.4905 | |
| RBF_LSSVR | 0.9998 | 0.5782 | 0.9782 | 0.7855 | |
| RBF_NN | 1.0000 | 0.0063 | 1.0000 | 0.0796 | |
| Sensitive wavelengths | PLS | 0.9177 | 1.3024 | 0.9058 | 1.3969 |
| Lin_LSSVR | 0.9579 | 1.0714 | 0.9517 | 1.1691 | |
| RBF_LSSVR | 0.9831 | 0.6823 | 0.97169 | 0.8952 | |
| RBF_NN | 0.9899 | 0.0136 | 0.9868 | 0.1536 | |
Sensitive wavelengths: 11, 14, 17, 21, 34, 64, 80, 91, 102, 108, 115, 120, 131, 140, 149, 156, 164, 175, 264, 279, 336, 348, 353, 365, 373, 382, 391, 408, 421, 439, 461, 485, 499, 511, 530, 565, 593, 627, 641, 647, 655, 661, 670, 721, 750, 759, 761, 765, 785, 806, 825, 838, 850, 855, 863, 886, 917, 927, 939, 949, 958, 965, 985, 999, 1,006, 1,008, 1,014, 1,016, 1,021, 1,023, 1,026, 1,029, 1,032, 1,039, 1,041 nm.