The red grape variety (also South Dakota 72S15) is an interspecific new breeding between Fredonia x South Dakota 9-39 (a Riparia seedling). It contains genes from Vitis labrusca, Vitis riparia and Vitis vinifera. The hybrid was crossed in 1967 at South Dakota State University by R. M. Peterson. The early-maturing vine is extremely resistant to frost down to minus 46 °Celsius, but susceptible to both powdery mildew and black rot and therefore more suitable for dry climates. It yields deep-coloured, low-acid red wines. However, the variety is mainly used for the production of table grapes, grape juice and jelly. There is acreage in Iowa, Michigan, Minnesota, Missouri, North Dakota, South Dakota and Wyoming. In 2016, a total of 11 hectares of vineyards were designated in the USA (Kym Anderson).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012.
Images: M.I.P.A.F - National Vine Certification Service
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Markus J. Eser
Weinakademiker und Herausgeber „Der Weinkalender“