TABLE 2.
Yield components of Cabernet Sauvignon grapevines (clone FPS08) subjected to different replacements of crop evapotranspiration (25% ETc, 50% ETc, and 100% ETc), collected in Oakville, CA, United States in the 2018–2019 and 2019–2020 seasons.
| Clusters per vine (no.) | Yield (kg/vine) | Leaf area to fruit ratio (m2/kg) | Berry mass (g) | |
| 2019 | ||||
| Treatments | ||||
| 25% ETc | 56 ± 1 | 6.78 ± 0.45c | 0.472 ± 0.021b | 1.08 ± 0.04c |
| 50% ETc | 58 ± 1 | 8.83 ± 0.44b | 0.409 ± 0.029b | 1.20 ± 0.04b |
| 100% ETc | 59 ± 1 | 10.35 ± 0.38a | 0.726 ± 0.024a | 1.37 ± 0.03a |
| ANOVA | ns | *** | *** | *** |
| 2020 | ||||
| Treatments | ||||
| 25% ETc | 55 ± 1 | 4.80 ± 0.31c | 0.499 ± 0.037b | 0.85 ± 0.05b |
| 50% ETc | 53 ± 1 | 6.26 ± 0.32b | 0.341 ± 0.013c | 1.08 ± 0.02b |
| 100% ETc | 53 ± 1 | 9.14 ± 0.25a | 0.838 ± 0.047a | 1.15 ± 0.02a |
| ANOVA | ns | *** | *** | *** |
Values represent means (n = 6) separated by Duncan’s new multiple range test (p ≤ 0.05). Different letters within each column indicate significant differences as affected by the different irrigation amounts. ns and *** indicate non-significance or significance at 0.1% probability levels, respectively. DW, dried weight.