Ravat blanc B
Name of the variety in France
Ravat blanc
Origin
Ravat blanc (Ravat 6) is an interspecific hybrid obtained by J-F. Ravat. Based on genetic analyses carried out in Montpellier, it would result from the crossbreeding of 8724 Seibel and Plantet (5455 Seibel).
Synonyms
In France, this variety can officially be called "Ravat 6" regarding plant propagation material
Legal information
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 cultivated areas in France
1958 1968 1979 2000 2008 2018
ha 600 567 1 21 15 8.9
Descriptive elements
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.
Susceptibility 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 potentiality
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 certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
1198 Hérault IFV - INRA 2013 Languedoc-Roussillon representative wines of the variety