Growth stage | Regression equation | Adjusted R2 | RMSE | Significance test |
---|---|---|---|---|
SS | y = 1.9752a1 − 0.1321 | 0.5912 | 0.3361 | P < 0.001 |
y = 1.6494b1 + 0.0935 | 0.4064 | 0.4043 | P < 0.001 | |
TFS | y = 0.4626a2 − 0.1644 | 0.6423 | 0.3145 | P < 0.001 |
y = 0.4223b2 − 0.0487 | 0.5661 | 0.3463 | P < 0.001 | |
TES | y = 0.4421a3 − 0.1823 | 0.7415 | 0.2671 | P < 0.001 |
y = 0.4305b3 − 0.1747 | 0.7034 | 0.2864 | P < 0.001 | |
SAS | y = 0.3436a4 + 0.0572 | 0.7063 | 0.2844 | P < 0.001 |
y = 0.3494b4 + 0.0593 | 0.6835 | 0.2956 | P < 0.001 | |
HS | y = 0.3269a5 + 0.0961 | 0.4692 | 0.3835 | P < 0.001 |
y = 0.3984b5 − 0.0706 | 0.5174 | 0.3654 | P < 0.001 |