Minnesota 78
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Minnesota 78 is a variety of grapevine, developed at the University of Minnesota.[1] It was extensively used in breeding by Elmer Swenson, with its Vitis riparia background providing a degree of adaptation to the harsh climate of the upper Midwest.[citation needed]
It has been recorded as a cross of Beta by Witt.[1] However, many have doubted this pedigree, and Swenson suggested that the male parent may be Jessica, a cross of Vitis labrusca by a variety of Vitis aestivalis.[citation needed] Because Witt appears to have been lost, precluding genetic testing, the truth may not be known.[citation needed]
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