Winegrowers Supplies - Vine variety information
Solaris (originally know as Fr. 240-75)
Father: Gm 6493 (Zarya severa x Muskat Ottonel)
A white Piwi/disease-resistant variety.
Year of breeding: 1975 (protected since 2001)
Country of origin: Germany
Breeder/License holder: Staatliches Weinbauinstitut Freiburg
Number of clones: 0
Year of entry into the German Federal Office's Varieties Register:
Area planted in Germany: in 2007, 54 hectares (mainly in Baden) also in Switzerland
Area planted in England: increasing rapidly
Wine Character - colour: yellow-green / yellow
- bouquet: fruity, perfumed, hints of banana and hazel-nuts
- palate: strong, characterful, fruity, ripe; suited to make sweet wine, or blend with more acidic wine.
Time of bud-burst: early (5 to 7 days before the average)
Strength of growth: very strong, grows in all directions so needs a lot of leaf-work in summer
Growth of side-shoots:
Flowering time: early (7 days before the average)
Flowering strength: high to very high
Leaf: - size:
- shape: large
- colour: 3 lobed
- surface undulation: dark green, like fine leather
- petiolar sinus:
Grape bunch: - size: medium
- density: loose to medium
Berries: - size: small-medium
- skin colour: gold
Time of veraison: early (7 days before the average)
Time of harvest: very early
Grape yield: high
Must-weight: very high, can reach 100 °Oeschle
Must-acidity: low to medium
- Oidium: very high
- Peronospora: very high
- Botrytis: high
- Roter Brenner:
- Stem-atrophy: very high
Preferred soil: needs a good supply of magnesium
Suitable rootstocks: SO4
Normal stem height: 1.3 m
Normal row spacing: 2.5 m
Vine spacing in the row: 1.6 m (good air flow is important)
Winter hardiness: very good
Winter Pruning: has lovely strong shoots at the extremities, but not much to use as replacement canes, so unlikely to be suitable for spur pruning.
Girdling would be beneficial.
Advantages: very early harvest, high ripeness. High yielding, reliable in a poor climate.
The highest resistance to diseases, so should not need any spraying. Nice wine, develops early. An excellent variety for planting in the North of England.
Disadvantages: Very strong growth requiring a lot of summer leaf-work. It is beneficial to cool the fermentation.
It can suffer from botrytis bunch rot near to harvest, so a spray against this (before bunches close up) may be beneficial.