The red grape variety (also Minnesota 1047) is a complex interspecific new breed between Landot 4511 ( Landot Noir ) x Riparia 89. They are genes from Vitis aestivalis. Vitis berlandieri. Vitis cinerea. Vitis labrusca. Vitis lincecumii. Vitis riparia. Vitis rupestris and Vitis vinifera contain. The crossing of the hybrid was done by Peter Hemstad and James Luby in 1978 at the University of Minnesota. This had the father variety at Jordan in Minnesota found. Plant variety protection was granted in 1996. Two colors mutations are the white-berry Frontenac Gris discovered in 1992 and the reddish-berry Frontenac Blanc discovered in 2005.
The medium to late ripening vine is generally resistant to vine diseases, but above all wrong mildew as well as extreme hardy to minus 34 ° Celsius. It produces characterful, acidic red wines with aromas Cassis, Cherries and plums without Foxton, These are used for the production of red and rose wines, as well as fortified wines in the Port wine style used. The variety is in the United States in the states Illinois. Indiana. Iowa. Minnesota, Nebraska and Nevada grown on a total of 135 hectares of vineyards. And the Frontenac Gris variety occupies 59 hectares in Iowa, Minnesota and South Dakota (Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)