Ora B
Name of vine variety in France
This variety was obtained in 1968 by INRA crossbreeding again a variety derived from the crossbreeding between Cinsaut N and Perle de Csaba B with Cardinal Rg.
In France, Ora B is officially listed in the "Catalogue of vine varieties".

This vine variety is likewise listed in the Catalogue of Bulgaria.
Table grape variety
Evolution of area under vines in France
2000 2008 2016
ha 48 40 21
Identification signs include:
- the tips of the young shoot have a moderate coat of flat-lying hairs,
- young leaves are green with bronze patches,
- adult leaves are pentagonal or wedge-shaped, 5-lobed, with a closed petiole sinus with slightly overlapping lobes with a U-shaped base; short to moderate teeth with straight or convex sides; absence or very slight anthocyanin coloration of veins, smooth leaf blade, jagged and the underside with a slight coat of flat-lying hairs and absence or slight coat of upright hairs,
- elliptical-shaped berries.
Genetic profile
Allel 1 131 223 243 178 186 252 248 216 261
Allel 2 133 234 249 182 188 260 254 243 271
Bud burst: 4 days after Chasselas.
Grape maturity: early, 1 week after Chasselas.
Suitability for cultivation and agronomic production
Ora B has moderate vigor and grows upright or semi-upright. This variety can be managed long or short pruned. Ora B is a little sensitive to  millerandage.
Sensitivity to diseases and pests
Ora B is not very sensitive to grey rot.
Technological potential
The grape clusters are moderate to large, supple, not very compact. The berries are moderate with a somewhat thin skin and simple flavored firm and juicy pulp. When ripe, the clusters are golden and very sweet. Ora B has good storage capacity and good long distance travel capacity.
Clonal selection in France
The only approved Ora B clone carries the number 974.
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.
- Dictionnaire encyclopédique des cépages. P. Galet, 2000, Ed. Hachette, 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
974    INRA