Rootstocks

We produce the majority of our required rootstocks as table grapes in the varieties 125 AA (clone FR 26), SO4 (clone FR 78) and 5 BB (clone FR 148) in our own parent garden in Oberkirch. We obtain the remaining rootstock from carefully selected propagation farms. Every year, all the plants from which we obtain wood are intensively inspected by the breeder and by us. These checks include the general state of care, single-variety, wood maturity and, in special, the state of health with regard to fungal and viral diseases.

The rootstocks we use for our grafting combinations are exclusively pre-basic or basic material and have undergone extensive virus testing. Our strict quality controls guarantee the health and vitality of our grafts. We are your partner for healthy and high-quality planting stock!

Find out more about rootstock varieties now!

Rootstock varieties & their characteristics

Variety	Drought tolerance	Chlorosis resistance	Active lime tolerance	Growth	Special properties
5 BB	medium-good	good	~ 20%	strong	large soil adaptation width especially suitable for permeable, light soils not suitable for flowering-sensitive varieties on fertile, shooty soils epecially strong growth
125 AA	medium	medium-good	~ 17%	medium-strong	Suitable for all locations except for shallow soils. strong growth low tendency to couluring
Börner	good	low	~ 10-15%	medium-strong	good dryness tolerance on dry, easily warmed, deep weathered soils very sensitive to chlorosis on heavy, waterlogged soils suitable for dry, stony soils excellent phylloxera resistance on leaves & roots
SO4	medium	good	~ 20%	medium	requires fertile sites weak growth on sites with a tendency to dryness & low fertility reduces the risk of couluring in varieties that are sensitive to flowering promotes fruit set with simultaneously more restrained shoot growth
Richter 110	good	medium	~ 17 %	very strong	very vigorous long vegetation cycle, delays ripening of grapes and wood well suited to dry locations, mainly grown in Mediterranean regions
Binova	medium	good	~ 19%	medium-strong	good for calcareous, not too weak soils very good performance with varieties sensitive to couluring many similarities with SO4, slightly more vigorous
1103 Paulsen	very good	medium	~ 18%	strong	highest tolerance of dryness, mainly grown in the Mediterranean region does not tolerate waterlogging suitable for deep, calcareous clay soils good tolerance of lime on dry, weak soils long vegetation cycle, delays grape and wood ripening
Fercal	good	very good	~ 40%	medium-strong	good resistance to drought, but also tolerates waterlogging well in spring long vegetation cycle, delays grape and wood ripening best rootstock for limestone soils
Vinto	good	good	~ 20%	medium - strong	very good resistance to phylloxera on leaves and roots good drought tolerance very good actime lime tolerance medium to strong growth
Libero	good	good	~ 18–20 %	medium	Very good resistance to phylloxera on leaves and roots Good drought tolerance Good active lime tolerance Medium growth

Rootstocks

Rootstock varieties & their characteristics

Impressions