Table 3.
Parameters used in the model that are calculated from observations
| Symbol | Description | Equation | Value | Units | Source |
|---|---|---|---|---|---|
| ap | Proliferation zone intercept | (17) | −50.9 | μm | 23 |
| ae | Enlargement-only zone intercept | (17) | DOY≥185: −744 DOY<185: 1257 | μm | 23 |
| at | Wall-thickening zone intercept | (17) | −427 | μm | 23 |
| bp | Proliferation zone slope | (17) | 7.47 | μm hr−1 | 23 |
| be | Enlargement-only zone slope | (17) | DOY≥185: 51.7 DOY<185: −5.01 | μm hr−1 | 23 |
| bt | Wall-thickening zone slope | (17) | 68.8 | μm hr−1 | 23 |
| fphloem | Probability of initial dividing to phloem mother | - | 0.315 | - | 28 |
| Lt | Cell tangential length | (11), (14) | 50.1 | μm | 23 |
| Wp | Primary cell-wall thickness | (14) | 0.8 | μm | 23 |
| χb | Mean cell radial length at birth | (7) | 8.8 | μm | 23 |
| θp | Phloem carbohydrate concentration | (16) | 95 | mg ml−1 | 23 |