Duras N
Name of vine variety in France
Duras
Origin
This variety is originally from the Gaillac or Ariège region.
Synonymy
No synonym is officially recognized in France, nor in other countries of the European Union .
Regulations
In France, Duras N is officially listed in the "Catalogue of vine varieties".
Use
Wine vine variety
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2016
ha 87 75 476 761 949 1063 800
Description
Identification signs include:
- thetips of the young shoot have a heavy coat of flat-lying hairs,
- the young leaves are yellow,
- adult leaves are orbicular-shaped with 5, 7 or 9 lobes with a petiolar sinus sometimes limited by a vein near the petiolar point with very deep lateral sinuses, U-shaped bottom and frequently with a tooth at the base, moderate anthocyanin pigmentation of veins, jagged leaf blade, revolute and the underside with a slight coat of flat-lying and upright hairs,
- 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: period II, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
This variety displays good fertility and preference must be given to short pruning. Duras N wood is hard and it grows upright.
Sensitivity to diseases and pests
Duras N is fairly susceptible to excoriosis, powdery mildew, to mites (particularly in the spring time) and to eutypiosis.
Technological potential
Grape clusters are moderate to large in size and the berries are moderate size. Duras N displays good sugar accumulation potential. Wines obtained are moderately colored but with very characteristic traits (peppery)
Clonal selection in France
The 4 approved Duras N clones carry the numbers 554, 555, 627 and 654. More than 120 clones have been conserved since 1998 in vineyards in  Gaillac (Tarn).
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.
- Cépages et vignobles de France, tome 2. P. Galet, 1990, Ed. Dehan, Montpellier.
- Ampélographie. P. Viala et V. Vermorel, 1902-1910, Ed. Masson, 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
554  Tarn  ENTAV  medium  medium  high  
 1978  Tarn  medium      
 1.54 ha        distinctive wines of the vine variety
555  Tarn  ENTAV  medium  medium  high  
 1978  Tarn  low to medium      
 0.44 ha        distinctive wines of the vine variety
627  Tarn  ENTAV  medium to high  medium to high  medium to high  
 1979  Tarn  medium to high      
 0.44 ha        distinctive wines of the vine variety
654  Tarn  ENTAV  medium to high  medium to high  low to medium  
 1980  Tarn  medium to high      
         distinctive wines of the vine variety