Relative Scion Vigour: Moderate to High
Rootknot Nematode Resistance: Moderate to High
Dagger Nematode Resistance: Low
Root Lesion Nematode Resistance: Moderate
Phylloxera Resistance: High
Lime Tolerance: Moderate
Drought Tolerance: Moderate
Root Strike: Good
General Comments:
SO4 is suited to a range of soils but does best in well-drained soils of low fertility in cool regions. Widely used in Germany and France. Some problems with low fruitset, poor magnesium uptake and high inflorescence necrosis have been reported in France.