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The red grape variety (also Geilweilerhof 67-198-3, GF 67-198-3) is an interspecific new breed between Diana (1) x Chambourcin, They are genes of Vitis labrusca. Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The intersection of hybrid took place in 1967 by Dr. med. Gerhardt Alleweldt (1927-2005) at the institute Geilweilerhof in Siebeldingen / Palatinate. The name derives from the famous diamond (140.5 carats), which was built in 1722 at the coronation of Louis XV. (1710-1774) on the crown and later Marie-Antoinette (1755-1793). He also graced the sword of Emperor Napoleon Bonaparte (1769-1821), today he is in the Louvre. The variety was crossbred partner of the new breeds Calandro. Julius and Reberger,

Regent - grape and leaf

The variety Regent has up to 300 mg / l a high proportion of anthocyanin Malvidin-3,5-diglucoside, which clearly indicates genes ex Vitis labrusca. However, as part of a study, it was classified as "Vitis vinifera" in 1996 due to "only low American genes" (see below) hybrids ). The early ripening vine is resistant to frost, both mildews and Botrytis, It produces colorful, full-bodied red wines with velvety tannins and aromas of cherries. The largest acreage is in Germany with 2,122 hectares. Other stocks are also available in Belgium. England (19 ha), Italy (3 ha), Austria. Romania (1 ha), Switzerland (41 ha) and Hungary (3 ha). In 2010, a total of 2,192 hectares were recorded.

Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)

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