# Bronner (grape)

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{{Short description|Variety of grape}}
{{Infobox grape variety
| name          = Bronner
| color         = Blanc
| image         = Bronner 04c 4.jpg
| caption       = Bronner grapes
| species       = ''[Vitis vinifera](/source/Vitis_vinifera)'', although with some influence of ''[Vitis amurensis](/source/Vitis_amurensis)'' in the pedigree
| also_called   = FR 250-75
| origin        = [Freiburg](/source/Freiburg), [Germany](/source/Germany)
| hazards       = 
| regions       = Germany
| notable_wines = 
}}

'''Bronner''' is a white [grape](/source/grape) variety used for [wine](/source/wine).<ref name="WP Bronner">[https://www.wein-plus.eu/en/Bronner+%28Rebsorte%29_3.0.3733.html Wein-Plus: Bronner], accessed on March 6, 2013</ref><ref name="VIVC Bronner">[http://www.vivc.de/datasheet/dataResult.php?data=17129 Vitis International Variety Catalogue: Bronner, database record 17129] {{Webarchive|url=https://web.archive.org/web/20120310175956/http://www.vivc.de/datasheet/dataResult.php?data=17129# |date=2012-03-10 }}, accessed on March 25, 2009</ref> It was bred in 1975 by [Norbert Becker](/source/Norbert_Becker_(agroscientist)) at the viticultural institute in [Freiburg](/source/Freiburg), [Germany](/source/Germany). The variety was initially known under its breeding code FR 250-75, and was later named in honour of {{ill|Johann Philipp Bronner|de}} (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](/source/Pinot_blanc).

== Pedigree ==

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

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

Gm 6494 has an influence of ''[Vitis amurensis](/source/Vitis_amurensis)'' in its pedigree, but despite this, Bronner is usually not considered to be a [hybrid grape](/source/hybrid_grape).<ref name="VIVC Bronner"/>

==Relationship to other grapes==
In 1983, Bronner was crossed with [Cabernet Sauvignon](/source/Cabernet_Sauvignon) to create the white wine grape [Souvignier gris](/source/Souvignier_gris).<ref>[Vitis International Variety Catalogue](/source/Vitis_International_Variety_Catalogue) (VIVC) ''[http://www.vivc.de/datasheet/dataResult.php?data=22629 Souvignier gris] {{Webarchive|url=https://web.archive.org/web/20140203014622/http://www.vivc.de/datasheet/dataResult.php?data=22629# |date=2014-02-03 }}'' Accessed: January 20th, 2014</ref>
In 1996 the red wine grape [Divico](/source/Divico_(grape)) was obtained through a natural cross of [Gamaret](/source/Gamaret) with Bronner.

== Synonyms ==

The only synonyms of Bronner are FR 250-75 or Freiburg 250-75.<ref name="VIVC Bronner"/>  

== Other Bronner variety ==

Confusingly, Bronner is also used as the name of an [open pollination](/source/open_pollination) variant of Pinot blanc.<ref name="WP Bronner"/><ref name="VIVC Bronner PB">{{Cite web |url=http://www.vivc.de/datasheet/dataResult.php?data=17116 |title=Vitis International Variety Catalogue: Bronner, database record 17116 |access-date=2010-07-02 |archive-url=https://web.archive.org/web/20120405173014/http://www.vivc.de/datasheet/dataResult.php?data=17116 |archive-date=2012-04-05 |url-status=dead }}</ref> 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](/source/dioecious), Bronner/Gaman is [monoecious](/source/monoecious), with only female flowers.<ref name="VIVC Bronner PB"/>

==References==
{{Reflist}}

Category:White wine grape varieties

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Adapted from the Wikipedia article [Bronner (grape)](https://en.wikipedia.org/wiki/Bronner_(grape)) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Bronner_(grape)?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.