Portugais bleu N
Name of vine variety in France
Portugais bleu
Origin
This variety would appear to originally be from Austria.
Synonymy
There is no officially recognized synonym in France for this variety. In the European Union, Portugais bleu can officially be called by other names: Blauer Portugieser (Germany, Austria), Kékoportó (Hungary), Modry Portugal (Czech Republic, Slovakia), Oporto (Romania), Portoghese (Italy), Portugalka (Slovenia), Portugizac (Croatia) and Português Azul (Portugal).
Regulations
In France, Portugais bleu is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogues of other Member States of the European Union: Austria, Croatia, Czech Republic, Germany, Hungary, Italy, Netherlands, Portugal, Romania, Slovakia and Slovenia.
Use
Wine grape variety.
Evolution of area under vines in France
1958 1968 1988 1998 2008 2018
ha 1042 1040 945 270 87 14
Description
The identification is based on:
- the tip of the young shoot with a low density of prostate hairs,
- the green young leaves with slightly bronze spots,
- the adult leaves, entire or with three or five lobes, with shallow lateral sinues, a slightly open petiole sinus or with slightly overlapping lobes, medium teeth with convex sides, no anthocyanin coloration of veins, a thin shiny, fragile, involute, twisted, smooth and sometimes goffered leaf blade, and on the lower side of the leaves, no erect and prostate hairs,
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 141 223 243 178 188 250 248 227 251
Allel 2 149 229 255 191 204 260 248 259 271
Phenology
Bud burst: 8 days after Chasselas.
Grape maturity: early-season, half a week after Chasselas.
Suitability for cultivation and agronomic production
Portugais bleu is a very early variety, vigorous and particularly sensitive to the wind. It is adapted to cool climate zones. Portugais bleu is nevertheless fairly sensitive to winter cold and its early budburst exposes it to spring frosts. It is suited to sandy, fairly dry and poor soils.
Sensitivity to diseases and pests
Portugais bleu is susceptible to downy mildew, powdery mildew and grey rot.
Technological potential
The bunches are medium in size and the berries are large. Portugais bleu produces not very tannic, not very acidic and rather colored wines. The wines should be consumed quickly or as a primeur.
Clonal selection in France
The only certified Portugais bleu clone carries the number 939. A conservatory of 40 or so clones was planted in 2000 in the wine-growing region of Auvergne (Massif Central).
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
939  Tarn  ENTAV        
 1988  Rhône
Tarn
       
         
Clone conforms to variety characteristics