Influence of pruning method and level on vine growth, crop yield, and cropping indicies of Cabernet Sauvignon trained to a single-canopy bilateral cordon trellis system, Oakville, California, 1992 season.
| Single-canopy bilateral cordon | ||||
|---|---|---|---|---|
| Parameter | Standard spur pruneda | Hedge pruned | Minimal pruned | Signif. |
| a24 two-bud spurs. | ||||
| Total shoots/vine | 36 | 191 | 314 | 0.0001 |
| Total clusters/vine | 69 | 225 | 299 | 0.0001 |
| Shoot length (cm) | 152 | 60 | 41 | 0.0001 |
| Nodes/shoot | 33.7 | 16.3 | 13.4 | 0.0001 |
| Total leaf area/vine (m2) | 16.2 | 23.8 | 20.1 | 0.0001 |
| Crop yield/vine (kg) | 9.8 | 20.2 | 15.9 | 0.0001 |
| Pruning wt/vine (kg) | 1.30 | 1.53 | 0.29 | 0.0001 |
| Yield/pruning wt (kg/kg) | 7.5 | 13.2 | 54.8 | 0.0001 |
| Leaf area/crop wt (m2/kg) | 1.65 | 1.17 | 1.26 | 0.001 |
| Total soluble solids (Brix) | 22.4 | 20.8 | 20.7 | 0.0001 |