Roussanne B
Name of vine variety in France
Roussanne
Origin
This variety is originally from the north of the Rhone valley.
Synonymy
There is no officially recognized synonym for this variety in France.In Bulgaria, Roussanne B can officially be called by the name "Rusan".
Regulations
In France, Roussanne B is officially listed in the "Catalogue of vine varieties".
This variety is likewise listed in the Catalogues of other European Union member states: Bulgaria, Spain and Italy.
Use
Wine vine variety
Evolution of area under vines in France
1958 1968 1979 1988 1998 2008 2016
ha 71 54 51 120 676 1074 2128
Description
Identification signs include:
- the tips of the young shoot have a dense coat of flat-lying hairs,
- the shoot has green internodes,
- adult leaves are 5 or 7 lobed with a slightly open petiole sinus or slightly overlapping lobes with very deep lateral sinuses; very short teeth compared to width at base; absence of anthocyanin coloration of veins; slightly revolute leaf blade and the underside with a very sparse coat of flat-lying and upright hairs,
- round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 182 196 240 240 257 251
Allel 2 131 229 253 186 200 252 248 257 255
Phenology
Bud burst: 8 days after Chasselas. Grape maturity: period II, 3 and 1/2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Roussanne B has very long shoots and due to this requires carefull trellising. This variety can be trained and moderately long or short pruned. This grape variety fares well in poor clay-limestone soils that are rather stoney and well exposed.
Sensitivity to diseases and pests
Roussanne B is very sensitive to oidium, grey rot, mites and thrips.
Technological potential
The grape clusters are small to moderate and the berries are small in size. Roussanne B produces wines of great finesse and complexity (floral and fruity notes of honey, hawthorn and apricot) with powerful and good acidic balance along with capacity for ageing. This variety highlights and brings out the nuances of excellent terroirs.
Clonal selection in France
The 5 approved Roussanne B clones carry the numbers 467, 468, 469, 522 and 1040. A conservatory with over 50 clones was set up in the Rhone valley in 2001.
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
467  Savoie  ENTAV  low to medium  low  medium  
 1976  Vallée-du-Rhône  low    medium  
 2.04 ha  medium      aromatic, round and balanced wines
Clone appreciated for its agronomic characteristics and quality of wines produced
468  Savoie  ENTAV  medium  medium  medium  
 1976  Vallée-du-Rhône  medium    medium  
 0.87 ha  medium      distinctive wines of the vine variety
469  Non précisée  ENTAV  medium  medium  medium  
 1976  Vallée-du-Rhône  medium    medium  
 1.22 ha  medium      distinctive wines of the vine variety
522  Savoie  ENTAV  low to medium  medium  medium  
 1976  Vallée-du-Rhône  medium    medium  
 4.18 ha  medium      distinctive wines of the vine variety
1040  Savoie  CA 07 - ENTAV  high  high  medium  
 2006  Vallée-du-Rhône  medium    medium  
   medium      balanced wines with floral aromas, volume and long on the palate
Wines appreciated in wine tastings with a higher than average production level for the grape variety