Open Access
Table 1
Mean values of yield and vigour and parameters of grape composition in plants without treatment (C) and treated with CPPU (T).
| Treatment | |||
|---|---|---|---|
| Parameters | C | T | Sign. |
| Yield and vigour | |||
| Yield (kg/vine) | 4.7 | 3.9 | |
| Average bunch weight (g) | 140.4 | 129.2 | |
| Pruning weight (kg) | 1.28 | 1.24 | |
| 100 berry weight (g) | 186.1 | 181.4 | |
| Must Composition | |||
| Total soluble solids (°Brix) | 21.1 | 21.6 | * |
| pH | 3,5 | 3,5 | |
| Total acidity (g/L) | 6.1 | 6.0 | |
| Total Polyphenol Index | 24.2 | 25.9 | * |
| Malic acid (g/L) | 1.7 | 1.9 | |
| Tartaric acid (g/L) | 5.5 | 5.5 | |
| Potassium (mg/L) | 953.8 | 1258.0 | |
| Assimilable Nitrogen (mg/L) | 177.5 | 186.9 | |
| Color Parameters (CIELAB) | |||
| L* | 76.7 | 75.8 | |
| a* | 1.3 | 2.2 | |
| b* | 25.9 | 25.9 | |
| C* | 25.9 | 26.0 | |
| h* | 87.2 | 86.8 | |
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