The white grape variety is an interspecific new breed between Oberlin 595 SP ( Oberlin NoirSP ) x Riesling, Synonyms are Siegfridrebe and Geilweilerhof FS 4-201-39. They are genes from Vitis riparia and Vitis vinifera contain. The breeding of hybrid was done in 1936 by Dr. Bernhard Husfeld (1900-1970) in the grape breeding department of the Kaiser Wilhelm Institute in Müncheberg (Mark Brandenburg ). The selection was made in 1940. Given the bad experiences with French hybrids in the previous decades, it was the same one that emerged at the same time Aris a phenomenal success from a breeding-scientific point of view.
Because of your resistance against mildew. Botrytis and wintry frost it was used to produce wines in Germany until the 1980s. Disadvantages, however, were strong fluctuations in earnings due to the strong tendency to Verrieseln and susceptibility to viruses. Ultimately, it was therefore unsuitable for the production of quality wines and was no longer used in viticulture practice. As a crossing partner for PIWI varieties (fungus-resistant new varieties) the variety (next to the Aris) was on Geilweilerhof however continued to be used.
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)