Three new cold-hardy seedless table grapes released by the University of Minnesota

Abstract

The University of Minnesota grape breeding program is releasing three new cold-hardy, seedless table grapes. MN1296 (marketed asEmberGloÔ), bred in 2004 from a cross between ‘Louise Swenson’ and MN1213, is a red grape cultivar with light, fruity flavors. MN1325 (marketed as ShadowGloÔ), developed in 2007 from MN1130 MN1213, is a black grape cultivar with crunchy texture, slightly thicker skin, and a mild labrusca flavor. Its berry size and shape resemble blueberries, making it a potential substitute for blueberry in smoothies and baked goods. MN1369 (marketed as LumiGloÔ), originating from a cross between MN1104 and ‘Petite Jewel’, is a greengrape cultivar with a pleasant tropical aroma and flavor. Clusters can be harvested over a 3-4 week window, providing growers flexibilityto meet market demand. In Minnesota, MN1369 typically ripens first (late August to early September), followed by MN1296 (early September), and MN1325 (mid-September). All three cultivars are seedless with only minor seed traces, show moderate resistance todowny and powdery mildews, and are rated hardy to USDAZone 4. These new releases expand options for cold-climate grape and fruit growers, offering diversification in color, flavor, and harvest timing.