The red variety is a new breed between Carignan Noir ( mazuelo x Cabernet Sauvignon, Synonyms include Cabernet Ruby, California 234 F2, Roubi Cabernet and Rubi Kaberne. The crossing took place in 1936 at the University of California in Davis by dr. Harold P. Olmo (1909-2006). The breeding goal was to develop a variety suitable for the hot regions in California for Bordeaux-like wines. However, it turned out later that it is well suited for much cooler areas. The variety was later under the breeding number F2-7 for the less successful new breeds Carmine. Carnelian and Centurion used.
The medium to late-ripening, high-yielding vine is moderately prone to genuine mildew, but very resistant to Botrytis, It produces dark, rustic red wines with aromas of red fruits. She is also called table grape used. The variety is in California especially grown in the San Joaquin Valley. In 2010, 2,425 hectares were reported as falling. Further stocks exist in the US states North Carolina. Oklahoma. Texas. Virginia and Wisconsin, as in Australia (962 ha), Brazil (42 ha), Israel. South Africa (2,220 ha) and Uruguay, In 2010, the variety covered 5,730 hectares of vineyards with a strong downward trend (in 2000, there were 7,419 hectares). It was thus worldwide varieties ranking on the rank 105.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)