Onaka (grape)
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Onaka is one of a number of hardy grape cultivars produced by the prolific breeder Nels Hansen at South Dakota State University. It is a product of a cross of Beta (a hybrid of Vitis labrusca and Vitis riparia known for its cold hardiness). and Salem (a Vitis labrusca by Vitis vinifera hybrid). Although never widely cultivated and today largely forgotten, it has contributed to the cold climate grape breeding efforts of breeders such as Elmer Swenson and is a likely parent of his variety Kay Gray.
