Ondenc B
Name of vine variety in France
Ondenc is originally from the south west of France.
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
In France, Ondenc is officially listed in the "Catalogue of vine varieties" on the A list and classified.
Wine grape variety.
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2018
ha 1586 1191 160 22 12 11 19.4
The identification is based on:
- the tip of the young shoot with a very high density of prostate hairs,
- the green young leaves,
- the adult leaves with three or five lobes, open U-shaped lateral sinuses, a slightly open petiole sinus or with parallel edges, short teeth compared to their width at the base with straight or convex sides, a weak to moderate anthocyanin coloration of veins, a flat leaf blade, and on the lower side of the leaves, a medium density of erect and prostate hairs,
- the ellipsoid berries.
Genetic profile
Allel 1 131 223 239 186 188 246 248 233 239
Allel 2 149 236 257 188 188 252 248 257 271
Bud burst: 1 day after Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.
Suitability for cultivation and agronomic production
Ondenc is vigorous, fertile and can be pruned short. Its early budburst makes it prone to spring frosts. It is sometimes susceptible to coulure and tend to alternate.
Sensitivity to diseases and pests
This variety is especially susceptible to grey rot and sour rot. It is also quite sensitive to downy and powdery mildew.
Technological potential
The bunches and berries are medium in size. Ondenc produces rather fine wines, but that are not very aromatic. Under favorable conditions and possibly following passerillage, it is possible to obtain liqueur wines as Ondenc is an early variety. Moreover, distilling these wines produces good quality spirits.
Clonal selection in France
The three certified Ondenc clones carry the numbers 674, 675 and 676. A conservatory of 20 or so clones was planted in 1998 in the wine-growing region of Gaillac (French department of Tarn).
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.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.
- Traité général de viticulture, Ampélographie. P. Viala and V. Vermorel, 1901-1909, Ed. Masson, Paris, 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
674  Tarn  ENTAV  high  high  low  
 1980  Domaine de l'Espiguette
 medium to high    medium  
         distinctive wines of the vine variety
675  Tarn  ENTAV  medium  medium  medium  
 1980  Domaine de l'Espiguette
 medium    medium  
         distinctive wines of the vine variety
676  Tarn  ENTAV  medium  medium  medium  
 1980  Domaine de l'Espiguette
 medium    medium  
         distinctive wines of the vine variety