Souvignier gris

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Souvignier gris
Synonyms no
Breeding number FR 392-83
Art Grape vine ( Vitis vinifera subsp. Vinifera )
Berry color red-gray
use
origin Germany
breeder Norbert Becker
Institute State Viticulture Institute Freiburg
Breeding year 1983
VIVC no. 22629
ancestry

Cross of
Cabernet Sauvignon × Bronner

List of grape varieties

Souvignier gris is a fungus- resistant white wine variety bred in 1983 . The variety has good downy mildew resistance and very good resistance to Oidium and Botrytis. These properties make it possible to reduce the number of plant protection measures even in wine-growing areas with higher rainfall. The good yields require grape thinning in order to achieve a satisfactory wine quality.

Origin, descent

Origin: Cross of Cabernet Sauvignon x Bronner .

To cross this variety, Norbert Becker used the parent varieties Cabernet Sauvignon as mother and Bronner as father, which in turn emerged from the crossing of Merzling × Gm 6494 (or Geisenheim 6494). Gm 6494 was a seedling population that was crossed in 1964 by Vilém Kraus in what was then Czechoslovakia from the grape varieties Zarya Severa x St. Laurent . Vilém Kraus offered the seedlings to Helmut Becker (1927–1990), who worked at the Geisenheim research institute at the time, who recognized the importance of this material and further processed it in breeding in progeny tests. The seedling Gm 6494-5 was selected from the seedling population Gm 6494 due to its special performance and was later propagated and put into practice under the variety name Rondo as an independent grape variety.

Norbert Becker erroneously researched the Saperawi Severni grape variety instead of Zarya Severa as the mother variety lings for the seedling population, which was only given the designation Gm 6494 in Geisenheim, when Vilém Kraus was crossed in 1964 . A detailed follow-up research by N. Becker's successor Volker Jörger together with colleagues from the Geisenheim research institute was able to reveal the error, and the true parenthood has now been considered to have been definitely clarified in specialist circles since 2003.

distribution

In 2015, an area of ​​2 ha was designated in Germany. Small plantings are known in Switzerland. A cultivation area of ​​0.3 hectares (as of 2015, source: Office fédéral de l'agriculture OFAG) was surveyed there.

Ampelographic features

  • The shoot tip is very hairy white wool with a weak anthocyanin coloration.
  • The shoot growth is medium strong.
  • The leaf is round with 3–5 lobes, but is only slightly indented with a V-profile. The stalk bay is open to slightly open with a clamp-shaped base. The underside of the leaf is slightly hairy.
  • The grape is medium to large in size, mostly shouldered with two grapes; loose berries, berries are red with a thick berry skin and have a very fleshy pulp.

Maturity: medium late

properties

The good downy mildew resistance, very good resistance to Oidium and Botrytis, and a small number of plant protection measures are advantageous. The loose leaf wall and the robust berry pods reduce the risk of botrytis infestation even in areas with higher rainfall.

The disadvantage is that stem paralysis and grape wilt occasionally occur. The winter frost resistance is only medium to low. The variety is fertile and requires grape thinning over many years.

Wine

The white wines are strong and substantial. They are mostly neutral in character or only slightly fruity.

See also

Article viticulture in Germany .

Web links

literature

  • Karl Bauer, Ferdinand Regner , Barbara Friedrich: Weinbau , avBuch im Cadmos Verlag, Vienna, 9th edition 2013, ISBN 978-3-7040-2284-4 .
  • Walter Hillebrand, Heinz Lott, Franz Pfaff: Paperback of the grape varieties. 13th, revised edition. Fachverlag Fraund, Mainz 2003, ISBN 3-921156-53-X .

Individual evidence

  1. ^ [1] , publisher Office fédéral de l'agriculture OFAG
  2. ^ Karl Bauer, Ferdinand Regner , Barbara Friedrich: Weinbau , avBuch im Cadmos Verlag, Vienna, 9th edition 2013, ISBN 978-3-7040-2284-4 .