Duras N
Name of the variety in France
Duras
Origin
This variety is originally from the Gaillac or Ariège region. Based on genetic analysis carried out in Montpellier, it would be the result of the crossbreeding between Savagnin and Tressot.
Synonyms
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
Legal information
In France, Duras 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 1988 2000 2008 2018
ha 87 75 476 761 949 1063 794
Descriptive elements
The identification is based on:
- the tip of the young shoot with a high density of prostate hairs,
- the yellow young leaves,
- the circular adult leaves, with five, seven or nine lobes, very deep U-shaped lateral sinuses with frequently a tooth inside, sometimes nakes petiole veins, a moderate anthocyanin coloration of veins, a twisted revolute leaf blade, and on the lower side of the leaves, a low density of erect and prostate hairs,
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 137 223 243 176 188 246 238 233 239
Allel 2 149 236 249 186 200 256 248 267 271
Phenology
Bud burst: 5 days after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
This variety displays good fertility and must be ideally pruned short. Duras wood is hard and has a erect bearing.
Susceptibility to diseases and pests
Duras is fairly susceptible to phomopsis, powdery mildew, mites (particularly during spring) and to eutypa dieback.
Technological potentiality
The bunches are medium to large and the berries are medium in size. Duras has a good sugar accumulation potential. Wines obtained are moderately colored but very distinctive (peppery).
Clonal selection in France
The four certified Duras clones carry the numbers 554, 555, 627 and 654. More than 120 clones are conserved since 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 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
554 Tarn ENTAV 1978 Tarn 1.54 ha medium medium medium high well representative wines of the variety
555 Tarn ENTAV 1978 Tarn 0.44 ha medium medium low to medium high well representative wines of the variety
627 Tarn ENTAV 1979 Tarn 0.44 ha medium to high medium to high medium to high medium to high representative wines of the variety
654 Tarn ENTAV 1980 Tarn medium to high medium to high medium to high low to medium representative wines of the variety