Table 2. Impacts of the grapevine trunk disease Esca on hydraulic conductance of whole-vine (Kvine) and leaf (Kleaf) of Cabernet-Sauvignon cultivar (Vitis vinifera L.).
Values shown are means from three different sampling dates where gas exchanges and water potentials were measured concurrently (from the end of flowering to berry ripening). Different letters within a row indicate a significant effect at p<0.05.
| Asymptomatic | Symptomatic | |
|---|---|---|
| Kvine (mmol m-2 MPa-1 s-1) | 3.0 ± 0.6 a | 2.4 ± 0.3 a |
| Kleaf (mmol m-2 MPa-1 s-1) | 5.0 ±0.3 a | 3.4 ± 0.4 b |
| Resistance in leaves (%) | 61 ± 15 b | 72 ± 10 a |