The white grape variety comes from the United States, Synonyms include Delavar, Delavar Rozovii, Delavar Serii, Delawar, Delaware Piros, Fehér Delaware, Gray Delaware, Heath Grape, Ladies Choice, Piros Delaware, Powell, Rose Colored Delaware, Ruff and Ruff Heath. The Swiss aristocrat Paul Henri Mallet-Prevost (1756-1833), who emigrated to the USA, bought a piece of land in 1794 New Jersey and dealt there among other things with vine breeding. He is considered a breeder of the variety. According to done in 2015 DNA analysis was confirmed the always accepted parenting. The variety is an intersection ( Vitis aestivalis x Vitis labrusca x Vitis vinifera,
Mallet-Prevost handed over cuttings to Benjamin Heath (hence one of the synonyms). This moved in 1837 Ohio and took the vine with me. There he passed on cuttings to his neighbor Abraham Thompson. He was so excited that in 1855 he sent cuttings to the Massachusetts Horticultural Society and dubbed them "Grape from Delaware City, Ohio." The vine came under the name Delaware in many states. She was crossing partner of the new breeds Beauty of Minnesota. brilliant. Delago. Dutchess. Headlight. Ithaca. Monroe and Reliance (2). Two openly dimmed Are seedlings Heunis and Jewel, The early-ripening, low-yielding vine is relatively resistant to frost, very prone to wrong mildew and Black spots disease, as well as a little less powdery mildew, Botrytis and black rot, She is also sensitive to the phylloxera (which actually speaks for European genes). She produces white wines with subtle Foxton,
The variety is in the northeast and midwest of the United States is widely used and is there as a wine grape for still wines (also Eiswein ) and sparkling wines, but also as table grape used. These are mainly Delaware, Michigan. Minnesota. new York (46 ha), Ohio (3 ha) and Pennsylvania (5 ha). Other stocks are also available in Brazil. Japan (51 ha) and South Korea (100 ha). In Austria Delaware is one of the grape varieties for the local specialty Uhudler (no registration). In 2010, a total of 227 hectares were reported (Statistics Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)