Table 4.
Expressions and performance for the model with three growth stage involved.
| Combination grow stage | Model expression | R2 | RMSE(kg/ha) |
|---|---|---|---|
| TS, JS, BS | y = -0.26-0.15x1 + 0.24x2 + 1.13x3 | 0.80 | 206.86 |
| TS, JS, HS | y = 0.21 + 0.16x1 + 0.30x2 + 0.27x4 | 0.74 | 233.02 |
| TS, JS, FS | y = 0.31 + 0.23x1 + 0.34x2 + 0.07x5 | 0.73 | 236.16 |
| TS, JS, RS | y = 0.16 + 0.42x1 + 0.37x2-0.014x6 | 0.73 | 239.26 |
| TS, BS, HS | y = -0.90 + 0.13x1 + 2.11x3-0.39x4 | 0.77 | 222.28 |
| TS, BS, FS | y = -1.45 + 0.13x1 + 2.52x3-0.27x5 | 0.80 | 204.76 |
| TS, BS, RS | y = -1.02 + 0.21x1 + 1.90x3-0.15x6 | 0.78 | 216.85 |
| TS, HS, FS | y = -0.17 + 0.46x1 + 0.77x4-0.13x5 | 0.69 | 257.95 |
| TS, HS, RS | y = -0.28 + 0.51x1 + 0.89x4-0.20x6 | 0.70 | 251.23 |
| TS, HS, RS | y = 0.063 + 0.77x1 + 0.16x5-0.051x6 | 0.64 | 276.27 |
| JS, BS, HS | y = -0.66 + 0.26x2 + 1.90x3-0.55x4 | 0.82 | 195.85 |
| JS, BS, FS | y = -1.06 + 0.20x2 + 2.04x3-0.23x5 | 0.83 | 189.13 |
| JS, BS, RS | y = -0.74 + 0.27x2 + 1.59x3-0.18x6 | 0.83 | 189.75 |
| JS, HS, FS | y = 0.26 + 0.32x2 + 0.38x4-0.019x5 | 0.74 | 234.14 |
| JS, HS, RS | y = 0.059 + 0.33x2 + 0.73x4-0.18x6 | 0.76 | 224.21 |
| JS, FS, RS | y = 0.45 + 0.43x2 + 0.23x5-0.15x6 | 0.75 | 232.17 |
| BS, HS, FS | y = -1.44 + 2.61x3 + 0.037x4-0.27x5 | 0.80 | 205.70 |
| BS, HS, RS | y = -1.01 + 2.14x3-0.06x4-0.12x6 | 0.77 | 218.78 |
| BS, FS, RS | y = -1.45 + 2.65x3-0.26x5-0.0028x6 | 0.80 | 205.74 |
| HS, FS, RS | y = -0.05 + 1.18x4-0.040x5-0.15x6 | 0.67 | 262.91 |