Ravat blanc B
Name of vine variety in France
Ravat blanc
Origin
Ravat blanc (an interspecific hybrid) is the result of the crossbreeding between 8724 Seibel and Chardonnay.
Synonymy
In France, this variety can officially be called "Ravat 6" regarding plant propagation material. There is no officially recognized synonym in the other countries of the European Union.
Regulations
In France, Ravat blanc is officially listed in the "Catalogue of vine varieties" on the A list and classified.
Use
Wine grape variety.
Evolution of area under vines in France
1958 1968 1979 2000 2008 2018
ha 600 567 1 21 15 8.9
Description
The identification is based on:
- the tip of the young shoot with a low density of prostate hairs,
- the shiny green young leaves,
- the kidney-shaped adult leaves, entire or with three lobes, with a very open U- or V-shaped petiole sinus, medium teeth with straight or convex sides, a weak anthocyanin coloration of veins, a shiny leaf blade, and on the lower side of the leaves, no or a very low density of erect and prostate hairs,
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 182 188 250 240 237 249
Allel 2 147 261 243 184 188 260 254 251 249
Phenology
Bud burst: 2 days after Chasselas.
Grape maturity: mid-season, 2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Ravat blanc is not very fertile, with a semi-erect bearing, and must be pruned long.
Sensitivity to diseases and pests
Ravat blanc resists well against downy mildew but is very sensitive to powdery mildew, anthracnose and grey rot. It must also be grafted.
Technological potential
The bunches are small. The berries are also small and can become pink at maturity. The sugar potential of Ravat blanc is good but the wines produced are sensitive to oxidation and are of mediocre quality.
Clonal selection in France
The only certified Ravat blanc clone carries the number 1198.
Bibliographic references
- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi, France.
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Cépages et vignobles de France, tome 1. P. Galet, 1988, Ed. Dehan, Montpellier, France.
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
1198  Hérault  IFV - INRA        
 2013  Languedoc-Roussillon        
         distinctive wines of the vine variety