Solaris (originally know as Fr. 240-75)
A white Piwi/disease-resistant variety.
Year of breeding: 1975 (protected since 2001)
Year of entry into the German Federal Office's Varieties Register:
Wine Character - colour: yellow-green / yellow
Time of bud-burst: early (5 to 7 days before the average)
Strength of growth: very strong, grows in all directions so
needs much leaf-work in summer
Flowering time: early (7 days before the average)
Leaf: - size: large
- shape: 3 lobed
Grape bunch: - size: medium
- density: medium
Time of veraison: early (7 days before the average)
Grape yield: high
Preferred soil: needs a good supply of magnesium
Normal stem height: 1.3 m
Winter Pruning: eyes/buds per sq. metre of land occupied by the plant.
Advantages: Very early harvest, high ripeness. High yielding, reliable in a poor climate. Should not need any spraying. Nice wine, develops early. An excellent variety.
Disadvantages: Very strong growth requiring a lot of summer leaf-work. It is beneficial to cool the fermentation. In England it can suffer from botrytis bunch rot near to harvest, so a spray against this (before bunches close up) may be beneficial.