Bronner is a white
grape variety used for
wine.
[Wein-Plus: Bronner](_blank)
accessed on March 6, 2013[Vitis International Variety Catalogue: Bronner, database record 17129](_blank)
, accessed on March 25, 2009 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 (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.
Pedigree
Becker created Bronner by crossing
Merzling
Merzling is a white grape variety used for wine.[Wein-Plus: Merzling](_blank)
accessed on March 6, ...
(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 , but Becker's successor Volker Jörger 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.
Relationship to other grapes
In 1983, Bronner was crossed with
Cabernet Sauvignon
Cabernet Sauvignon () is one of the world's most widely recognized red wine grape varieties. It is grown in nearly every major wine producing country among a diverse spectrum of climates from Australia and British Columbia, Canada to Lebanon' ...
to create the white wine grape
Souvignier gris.
[ Vitis International Variety Catalogue (VIVC) ]
Souvignier gris
'' Accessed: January 20th, 2014
In 1996 the red wine grape
Divico was obtained through a natural cross of
Gamaret with Bronner.
Synonyms
The only synonyms of Bronner are FR 250-75 or Freiburg 250-75.
Other Bronner variety
Confusingly, Bronner is also used as the name of an
open pollination variant of Pinot blanc.
The Pinot blanc-related Bronner, which is not the same variety as the 1975 German crossing, is known under the synonyms Weiße Bronnertraube and Weiße Gaman. Unlike most cultivated grape varieties, which are
dioecious
Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...
, Bronner/Gaman is
monoecious
Monoecy (; adj. monoecious ) is a sexual system in seed plants where separate male and female cones or flowers are present on the same plant. It is a monomorphic sexual system alongside gynomonoecy, andromonoecy and trimonoecy.
Monoecy is conne ...
, with only female flowers.
References
{{Reflist
White wine grape varieties