Bronner (grape)

Bronner
Grape (Vitis)
Bronner grapes
Color of berry skin	Blanc
Species	Vitis vinifera, although with some influence of Vitis amurensis in the pedigree
Also called	FR 250-75
Origin	Freiburg, Germany
Notable regions	Germany

Bronner is a white grape variety used for wine. It was bred in 1975 by Norbert Becker at the viticultural institute in Freiburg, Germany. The variety was initially known under its breeding code FR 250-75, and was later named in honour of Johann Philipp Bronner (1792-1864), who was a German pharmacist and viticultural pioneer. It received varietal protection in 1977.

Bronner shows good resistance against fungal diseases and is in many respects similar to Pinot blanc.

Becker created Bronner by crossing Merzling (mother vine) and Gm 6494 (father vine). "Gm" is used in breeding codes for grapes from the Geisenheim grape breeding institute, but Gm 6494 was originally created in Czechoslovakia in 1964 by Professor V. Kraus by crossing Zarya Severa and St. Laurent. Kraus offered several of his crosses to Dr. Helmut Becker in Geisenheim, where additional work was carried out, and where his plants were given serial numbers. The grape variety Rondo was created by selecting a Gm 6494 plant with particular properties.

Initially, the father vine of Gm 6494 was thought to be Saperawi Severni, but Becker's successor Volker Joerger and his colleagues were able to identify Zarya Severa instead.

Gm 6494 has an influence of Vitis amurensis in its pedigree, but despite this, Bronner is usually not considered to be a hybrid grape.

In 1983, Bronner was crossed with Cabernet Sauvignon to create the white wine grape Souvignier gris. In 1996 the red wine grape Divico was obtained through a natural cross of Gamaret with Bronner.

The only synonyms of Bronner are FR 250-75 or Freiburg 250-75.

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