Blanc Dame B
Name of vine variety in France
Blanc Dame
Origin
This variety is originally from the south west of France. Based on published genetic analyses, Blanc Dame B is probably descended from  Gouais B.
Synonymy
No synonym is officially recognized in France, nor in other countries of the European Union.
Regulations
In France, Blanc Dame 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 1979 1988 2008 2016
ha 24 5 9 0.2 0.3
Description
Identification signs include:
- the tip of the young shoots has a heavy coat of flat-lying hairs,
- the young leaves are yellow with slightly bronze patches,
- the shoots have red internodes,
- adult leaves are large, whole or 5-lobed with a closed petiolar sinus with overlapping edges, moderate to long teeth with striaght or convex sides, absence of anthocyanin pigmentation of veins, twisted leaf blade and the underside with a sparse coat of upright and flat-lying hairs, 
- round-shaped or slightly flat berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 229 243 176 188 244 238 245 239
Allel 2 149 238 249 186 204 252 248 257 271
Phenology
Bud burst: 4 days after Chasselas.
Grape maturity: period II, 3 and 1/2 weeks after Chasselas.
Suitability for cultivation and agronomic production
This variety has moderate vigor and grow semi-upright. The leaves are positioned in a particular fashio, with the leaves covering each other like roof tiles. Blanc Dame B displays good fertility.
Sensitivity to diseases and pests
Blanc Dame B is rather susceptible to fungal diseases.
Technological potential
The grape clusters and berries are moderate in size. Blanc Dame B produces rather fine, light, supple and relatively low in acid wines.
Clonal selection in France
The only approved Blanc Dame B clone carries the number 1111.
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 2. P. Galet, 1990, Ed. Dehan, Montpellier.
- Ampélographie. P. Viala et V. Vermorel, 1902-1910, Ed. Masson, Paris.
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
1111  Gers  IFV        
 2007