Minnesota 78
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Minnesota 78 is an old selection of grapevine, developed at the
University of Minnesota The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public land-grant research university in the Twin Cities of Minneapolis and Saint Paul, Minnesota, United States. ...
. It was extensively used in breeding by Elmer Swenson, with its ''
Vitis riparia ''Vitis riparia'' Michx, with common names riverbank grape or frost grape, is a vine indigenous to North America. As a climbing or trailing vine, it is widely distributed across central and eastern Canada and the central and northeastern parts ...
'' background providing a degree of adaptation to the harsh climate of the upper Midwest. Although recorded as a cross of Beta by Witt, many have doubted this pedigree, and Swenson suggested that the male parent may be Jessica, a cross of ''
Vitis labrusca ''Vitis labrusca'', the fox grape, is a species of grapevines belonging to the ''Vitis'' genus in the flowering plant family Vitaceae. The vines are native to eastern North America and are the source of many grape cultivars, including Catawba, C ...
'' by a variety of ''
Vitis aestivalis ''Vitis aestivalis'', the summer grape, or pigeon grape is a species of grape native to eastern North America from southern Ontario east to Maine, west to Oklahoma, and south to Florida and Texas. It is a vigorous vine, growing to 10 m or more h ...
''. Because Witt appears to have been lost, precluding genetic testing, the truth may be known.


References

Grape varieties American wine {{wine-grape-stub