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The white grape variety (also FR 177-68) is a complex new variety between Riesling x FR 589-54 (incidentally, the Austrian new variety Donauriesling was created with the same parents). It contains genes from Vitis aestivalis, Vitis cinerea, Vitis rupestris and Vitis vinifera. The crossing was done in 1968 by Dr. Johannes Zimmermann (1907-1998) at the State Viticulture Institute Freiburg (Baden-Württemberg). The name is a tribute to the former head of the institute and breeder. The medium-early maturing vine is resistant to both types of mildew and is therefore considered a PIWI variety. It produces fruity white wines similar to Riesling. In Germany this is cultivated on 77 hectares. There are also small stands in Austria and Switzerland (11 hectares). In 2010, 88 hectares of vineyards were designated (Kym Anderson).

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