Table 4 PLSR model parameters
Parts | Pretreatment methods | Factors | Slope | RMSE | R2 | RPD |
|---|---|---|---|---|---|---|
Stem | RAW | 2 | 0.14 | 3.97 | 0.09 | 1.04 |
SD | 9 | 0.79 | 1.19 | 0.92 | 3.47 | |
MSC | 7 | 0.95 | 0.47 | 0.99 | 8.79 | |
SNV | 7 | 0.94 | 0.52 | 0.98 | 7.94 | |
SG | 5 | 0.96 | 0.48 | 0.99 | 8.6 | |
Leaf | RAW | 6 | 0.85 | 0.94 | 0.49 | 2.03 |
SD | 9 | 0.47 | 1.42 | 0.47 | 1.35 | |
MSC | 14 | 0.85 | 0.46 | 0.94 | 4.15 | |
SNV | 14 | 0.85 | 0.49 | 0.94 | 3.9 | |
SG | 9 | 0.94 | 0.2 | 0.99 | 9.55 |