Effect of vine defoliation in the previous season on budburst, final shoot growth parameters, vine balance, and capacity (1998/1999).
| Defoliation (weeks postbloom) | |||||
|---|---|---|---|---|---|
| No | Linear | ||||
| 4 wk | 8 wk | 12 wk | defol. | signifa | |
| a**, ***, and ns indicate significance at p ≤ 0.01, 0.001, and not significant, respectively. | |||||
| bMeans within the same row with the same letter are not significantly different at LSD p ≤ 0.05. | |||||
| Budburst (%) | 81.8 | 91.7 | 85.6 | 87.9 | ns |
| Cane number/vine | 22 | 25 | 23 | 24 | ns |
| Cane length (cm) | 150 | 152 | 159 | 171 | ns |
| Node number/cane | 22 | 23 | 20 | 22 | ns |
| Cane fresh wt (g) | 63.3cb | 68.3c | 89.2b | 105.8a | *** |
| Cane diameter at 8th internode (mm) | 7.35c | 7.80c | 8.47b | 9.60a | *** |
| Pruning fresh wt (kg/vine) | 1.40c | 1.60c | 1.97b | 2.49a | *** |
| Yield to pruning weight ratio (Ravaz index) | 1.3b | 2.0a | 2.1a | 2.4a | ** |
| Vine capacity (kg) | 1.23d | 1.67c | 2.06b | 2.80a | *** |