The white grape variety is a complex new breeding between Merzling x GM 6493(Zarya Severa x Muskat-Ottonel). Synonyms or the breeding numbers are Freiburg 240-75 and FR 240-75. It contains genes from Vitis amurensis, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1975 by Norbert Becker (1937-2012) at the State Viticultural Institute Freiburg (Baden-Württemberg). Plant variety protection was granted in 2001. The Solaris variety or its initial plant population was a crossing partner in the seven fungus-resistant PIWI new varieties Cabernet Cantor, Cabernet Carol, Cabernet Cortis, Galante, Monarch, Muscaris and Rosina (1).
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