The red grape variety (also Freiburg 523-89 r) is a new variety between Seibel 7053(Chancellor) x(Merzling x(Zarya Severa x Muscat Ottonel)). In some sources this is given in the form Chancellor x Solaris, because the father variety later became Solaris by selection. There are genes of Vitis amurensis, Vitis labrusca, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The crossing of the hybrids took place in 1989 at the State Viticulture Institute in Freiburg (Baden-Württemberg). Plant variety protection was granted in 2000. The late maturing, frost-hardy vine is very resistant to powdery and downy mildew; the tendency to trickle is low. It can therefore be called a PIWI variety. It produces colour-intensive red wines rich in extract and tannin. The variety is cultivated in small stands in Switzerland. In 2016, a total of 1.5 hectares of vineyard area were designated (Kym Anderson statistics).
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