Site Listings concordgrape.org: The Concord Grape Association Represents processors of Concords and manufacturers of products derived from Concords. www.concordgrape.org/ grapes.umn.edu: Cold Hardy Grapes : U Of M. At the University of Minnesota, we're known worldwide for expertise in cold hardy varieties. We've been breeding grapes for you for over a century. www.grapes.umn.edu/ avf.org: American Vineyard Foundation | American Vineyard Foundation A leader in maintaining industry progress, the AVF provides the unique opportunity to unify the grape and wine industry through collaborative research efforts. www.avf.org/ Add Site or Add URL to Submit Site to the Viticultural Science Directory |