The red grape variety is a new breed between Schiava Grossa (Trollinger) x Riesling. Synonyms are Geisenheim 3-37 and Redberger. By the way, the new breeds Kerner and Witberger also originated from the same parents. The crossing took place in 1928 by Dr. Heinrich Birk Heinrich (1898-1973) at the research institute Geisenheim in the Rheingau, and the varietal protection was granted in 1969. However, it should not be confused with the variety Rotburger (synonym for Zweigelt). The variety Rotberger was a crossing partner of the two new breeds Bolero and Piroso.

The early ripening grape varieties, Yield vine is susceptible to downy mildew and tends to form sucker. It produces a light ruby red red wine with fragrant aroma, which is particularly suitable for the production of rosé and sparkling wine base wine, as well as for blending. In 2016, it occupied 10 hectares of vineyard area in Germany, mostly in the growing regions Rheinhessen and Rheingau, with a strongly declining trend. Small stocks also exist in Trentino (Northern Italy), as well as New Zealand, Canada (1 ha), USA, and South Africa (Statistics Kym Anderson Kym).
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Andreas Essl
Autor, Modena