The red grape variety (also California S 8, Rubyred, Tintoria) is an interspecific new breed between Alicante Ganzin x Tinto Cao, They are genes from Vitis rupestris and Vitis vinifera contain. The crossing of the hybrid was done in 1938 at the California Agricultural Experiment Station by the breeder Harold P. Olmo (1909-2006). At the same time, here is the very similar one Royalty created with the same mother variety, both varieties were then released together in 1958. The productive vine is moderately resistant to real ones mildew and particularly strong against Botrytis, It produces dark-colored red wines of a simpler character Cassis-Aroma, which are distinguished as teinturier (Dye grape) are suitable. It is also used for the production of table grapes and grape juice used. In California especially in the Central Valley grown and occupied a total of 4,556 hectares of vineyards there in 2010. Small stocks are also said to be in Australia and Mexico give. It documents worldwide varieties ranking rank 117.
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)