Table 4.
Estimated parameters for the segmented model (S2) of Salvia hispanica seeds. Root mean square of deviations (RMSE) and coefficient of determination (R2) for the relationship between emergence rates.
| Parameter | S2 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | |||||||||
| Tb (°C) | 9.62 | 9.41 | 8.74 | 8.05 | 6.96 | 6.10 | 4.67 | 2.59 | ||||||||
| Mean Tb (°C) | 6.65 ± 2.55 | |||||||||||||||
| To (°C) | 31.07 | 32.28 | 33.29 | 36.05 | 36.70 | 37.71 | 39.51 | 49.22 | ||||||||
| Mean To (°C) | 36.97 ± 5.70 | |||||||||||||||
| Tc (°C) | 46.64 | 44.06 | 44.19 | ND | ND | ND | ND | ND | ||||||||
| Mean Tc (°C) | 44.96 ± 1.45 | |||||||||||||||
| Range | Sub | Supra | Sub | Supra | Sub | Supra | Sub | Supra | Sub | Supra | Sub | Supra | Sub | Supra | Sub | Supra |
| RMSE | 1.46 | 1.88 | 0.93 | 1.76 | 0.45 | 0.74 | 0.31 | ND | 0.22 | ND | 0.17 | ND | 0.13 | ND | 0.11 | ND |
| R2 | 0.96 | 0.95 | 0.88 | 0.63 | 0.88 | 0.69 | 0.85 | ND | 0.83 | ND | 0.80 | ND | 0.74 | ND | 0.58 | ND |
| Adjusted R2 | 0.96 | 0.94 | 0.87 | 0.57 | 0.87 | 0.64 | 0.83 | ND | 0.82 | ND | 0.78 | ND | 0.72 | ND | 0.54 | ND |