Rotberger

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Rotberger
Synonyms Geisenheim 3-37, GM 3/37, Redberger
Rotberger
Art Grape vine ( Vitis vinifera subsp. Vinifera )
Berry color black
use
origin Germany
known since 1928
breeder Heinrich Birk
Institute Geisenheim University, Institute for Vine Breeding
Breeding year 1928
VIVC no. 10230
ancestry

Cross of
Schiava Grossa × Riesling

List of grape varieties

Rotberger ( Vitis vinifera ) is a red wine variety . It is a cross between Trollinger (Schiava grossa) and Riesling , which Heinrich Birk achieved at the Geisenheim research station in Rheingau in 1928. The information provided by the breeder about the parents of the cross has been confirmed by DNA analysis in the meantime.

The new breed obtained plant variety protection in 1969 and was entered in the list of varieties in 1971. The vigorously growing vine forms strong stinging shoots , which makes it susceptible to powdery mildew (Oidium). It needs deep, fine-grained, not too dry soils, blooms and ripens late. It produces strong, Trollinger- like, but full-bodied, fragrant, fruity wines of light red color. It is also considered a good variety for making rosé wine . The wine mainly plays a role as a blend and for the production of red sparkling wine .

Small growing areas totaling only approx. 18 hectares are located on the Ahr , in the Rheingau , in Rheinhessen and on the Bergstrasse . In 2001, 25 hectares were surveyed. The vine is also found in Trentino , South Africa , New Zealand , Canada and the USA .

See also the articles Viticulture in Germany , Viticulture in Italy , Viticulture in South Africa , Viticulture in New Zealand , Viticulture in Canada and Viticulture in the United States as well as the list of grape varieties .

The grape variety must not be confused with the Rotburger , a synonym for Zweigelt .

Ampelographic varietal characteristics

In ampelography , the habitus is described as follows:

  • The shoot tip is open. It is hairy with white wool and is whitish-green in color. The slightly bronze-colored speckled young leaves (anthocyanin spots) are only slightly woolly hairy and green in color.
  • The medium-sized, dark green leaves (see also the article leaf shape ) are five-lobed and have a medium-deep cave. The stalk bay is lyren-shaped open to overlapping closed. The leaf margin is serrated to a point. Compared to other grape varieties, the teeth are set medium wide. The leaf surface (also called blade) is blistered and rough.
  • The slightly conical grape is medium-sized and has dense berries. The round berries are medium to large in size and bluish-red in color.

The Rotberger sprouts late and thus mostly escapes the late spring frosts. The winter frost resistance is moderately good. The vigorous variety can produce very good yields. Generally, however, also applies to Helfensteiner: if the vine is not pruned correctly (→ Training system ), there is a risk too high yields with the concomitant reduction in quality. The yield can be as high as 100-150 hectoliters / hectare.

It often reaches medium-high must weights . On average, the must weight is a few degrees Oechsle above that of the Blauer Portugieser .

The flowering time is late. The Rotberger ripens only a few days after the Gutedel and is therefore still considered to ripen early. It can be harvested shortly after the Portugieser. Rotberger is a variety of the noble grapevine ( Vitis vinifera ). It has hermaphroditic flowers and is therefore self-fruiting. In viticulture , the economic disadvantage of not having to grow male plants that produce yield is avoided.

distribution

The vineyards in Germany were distributed among the individual growing areas in 2007 as follows:

Wine region Vineyards (hectares)
Ahr 1
to bathe -
Francs -
Hessian mountain road 2
Middle Rhine below 0.5
Moselle -
Near 2
Palatinate -
Rheingau 7th
Rheinhessen 4th
Saale-Unstrut below 0.5
Saxony -
Stargarder Land -
Württemberg 2
Total Germany 2007 18th

Source: Vineyard statistics from March 13, 2008, Federal Statistical Office , Wiesbaden 2008 in Descriptive Variety List of the Federal Variety Office 2008, page 198ff.

Individual evidence

  1. ↑ Rotberger in the database Vitis International Variety Catalog of the Institute for Vine Breeding Geilweilerhof (English)
  2. ↑ "Focus on the parents of the crossbreeding of German new vines - what does the genetic fingerprint say", by Erika Maul, Fritz Schumann, Bernd HE Hill, Frauke Dörner, Heike Bennek, Valérie Laucou, Jean-Michel Boursiquot, Thierry Lacombe, Eva Zyprian, Rudolf Eibach and Reinhard Töpfer; in "German Wine Yearbook 2013" (64th year) - pages 128 to 142, ISBN 978-3-8001-7783-7
  3. ↑ Descriptive list of varieties of the Federal Plant Variety Office 2008 (PDF; 519 kB)

literature

  • Walter Hillebrand, Heinz Lott and Franz Pfaff: Paperback of the grape varieties . 13th edition. Fachverlag Fraund, Mainz, 2003, ISBN 3-921156-53-X .
  • Pierre Galet : Dictionnaire encyclopédique des cépages . 1st edition. Hachette Livre, 2000, ISBN 2-01-236331-8 .

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