University of Minnesota

Peter Hemstad

James J Luby

Matthew Clark

Matthew D Clark

John Richard Thull

Nicholas Smith

Kathryn Cook

The invention is a new and distinct variety of grapevine plant named 'MN 1325' that is characterized by its berries that have a crunchy texture, its berries that have a mild labrusca flavor, its berries that have a thick skin, its berries that are suitable for use in baked goods, similar to a blueberry, and its seedless berries (only seed traces).

Grapevine plant named 'MN 1325'

The invention is a new and distinct variety of grapevine plant named 'Clarion' that is characterized by its grapes with a moderate juice total acidity (average of 7.73 g/L) making it suitable for wine production, its grapes that lack less desirable aromatic compounds that are typical of cold climate hybrid grapes, its grapes with floral notes including lilac and tropical fruit notes, its good growth habit without excessive vigor, and its grapes with a loose cluster architecture.

Grapevine plant named 'Clarion'

The invention is a new and distinct variety of grapevine plant named 'Itasca', which is characterized by its adaptibility to grow in cold climates for grape production, its cold hardiness to at least U.S.D.A. Zone 4, its fruits that are suitable for making white wine, its fruit with moderately low total acidity levels combined with high sugar levels at maturity, and its high resistance to downy mildew and black rot diseases and moderate resistance to powdery mildew and foliar infestation by the insect pest phylloxera.

Grapevine plant named 'Itasca'

The invention is a new and distinct variety of grape vine plant designated 'Marquette', which produces bluish-black colored fruit suitable for red wine production, and has a combination of high wine quality, excellent cold hardiness and good disease resistance.

Grapevine plant named 'Marquette'

The invention is a new and distinct variety of grape plant designated 'Frontenac gris', which produces gray colored fruit suitable for white wine production, and has a combination of high wine quality, excellent cold hardiness and disease resistance, and very good productivity.

Grape plant named 'Frontenac gris'

The invention is a new and distinct variety of grapevine designated 'La Crescent', which has a combination of outstanding wine quality and cold hardiness.

Growing community of inventors

Edina, MN, United States of America

Peter Hemstad