Baco blanc B
Name of vine variety in France
Baco blanc
Origin
Baco blanc B or Baco 22 A, was obtained by François Baco (Landes). It is a interspecific crossbreeding of Folle blanche B ande Noah B (Vitis labrusca - Vitis riparia).
Synonymy
In France, this variety can officially be called "Baco 22 A" in terms of propagation plant material.
No synonym is officially recognized in other countries of the European Union.
Regulations
In France, Baco blanc B is officially listed in the "Catalogue of vine varieties".
Use
Wine and eaux-de-vie vine variety
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2016
ha 24427 20013 8995 4255 2552 1020 753
Description
Identification signs include:
- the tip of the young shoot has a heavy coat of flat-lying hairs,
- the young leaves are yellow,
- the shoot with an absence of anthocyanin pigmentation and a maximum number of consecutive 2 by 2 tendrils,
- adult leaves are large, orbicular or wedge-shaped, whole or 3 or 5-lobed with deep lateral sinuses, parallel edges with U-shaped base, an open V or U-shaped petiolar sinus, short teeth compared to width at base, straight sides, an absence of anthocyanin pigmentation of veins, a moderately or heavily bubbled leaf blade and the underside with a heavy coat of flat-lying hairs on the leaf blade and an absence or very sparse coat on the veins,  
- round-shaped berries, soft pulp with a foxy flavor.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 122 223 235 178 196 244 238 243 249
Allel 2 131 223 239 184 206 250 238 257 271
Phenology
Bud burst: 6 days after Chasselas.
Grape maturity: period III, 4 weeks after Chasselas.
Suitability for cultivation and agronomic production
Baco blanc B has moderate to strong vigor and grows semi-upright. It is sensitive to chlorosis.
Sensitivity to diseases and pests
Baco blanc B is sensitive to phylloxera, flavescence dorée, powdery mildew on the leaves and to mites. On the other hend, it is not very susceptible to grey rot.
Technological potential
Baco blanc B grape clusters and berries are moderate to large in size. This variety produces wine used for making good quality eaux-de-vie.
Clonal selection in France
The only approved Baco blanc B clone carries the number 1086.
Bibliographic references
- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi.
- Documentation interne du Domaine de Vassal. 1949-2011, INRA, Marseillan-plage.
- Cépages et vignobles de France, tome 1. P. Galet, 1988, Ed. Dehan, Montpellier.
Description of clones approved in France
Identity and availability Agronomic data Technical data
Clone number Origin Selection Fertility Production level Sugar content Potential color
Year approved Agronomic references Weight of grape clusters Vigor Total acidity Tannic structure
Growing surface area Size of berries Sensitivity to Botrytis Aromatic intensity Oenological aptitudes
1086  Non précisée  CA 32 - ENTAV        
 2004          
         
Clone conforms to variety characteristics