Dattier de Beyrouth B
Name of vine variety in France
Dattier de Beyrouth
Origin
This table grape variety is of natural origin and is found in many countries.
Synonymy
No synonym is officially recognized for this variety in France.In the European Union, Dattier de Beyrouth B can officially be called by other names: Afuz Ali (Hungary, Romania), Bolgar (Bulgaria), Rozaky (Portugal), Roseti (Spain), Regina (Spain), Rosaki (Spain), Rozaki (Greece) and Kerino (Greece).
Regulations
In France, Dattier de Beyrouth B is officially listed in the "Catalogue of vine varieties".This variety is likewise listed in the Catalogues of other European Union member states: Bulgaria, Spain, Greece, Hungary, Portugal and Romania.
Use
Table grape variety
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2016
ha 1508 1591 5695 191 42 49 24
Description
Identification signs include:
- thetips of the young shoot have a slight coat of flat-lying hairs,
- the young leaves are green with bronze patches,
- the shoots have long internodes,
- adult leaves are small to moderate in size, 3 or 5 lobes with an open petiolar sinus with parallel sides and a U-shaped bottom oftentimes limited by the vein near the petiolar point; small to moderate size teeth, straight sides, an absence or slight pigmentation of veins; smooth and shiny leaf blade and the underside with an absence of upright and flat-lying hairs, 
- berris are long elliptical or cyrindrical shaped
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 182 186 244 248 233 257
Allel 2 133 229 249 182 188 252 254 257 271
Phenology
Bud burst: 9 days after Chasselas. Grape maturity: period III, 4 and 1/2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Dattier de Beyrouth B is a vigorous variety with semi-erect to horizontal growth. It can be managed by short or long pruning but it must be carefully trained because the shoot base is fragile in the spring and the shoots are wind sensitive. Dattier de Beyrouth B is likewise susceptible to coulure and millerandage.
Sensitivity to diseases and pests
Dattier de Beyrouth B is very susceptible to downy mildew and excoriosis. It is also susceptible to grey rot.
Technological potential
Grape clusters are very large, loose or moderately compact. The berries are very large with a thick skin and a simple flavor fleshy pulp. This variety has good storage and transportation capacity.
Clonal selection in France
The 2 approved Dattier de Beyrouth B clones carry the numbers 304 and 966.
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
304  Non précisée  ENTAV        
 1973          
         
Small distribution clone, few available references
966  Non précisée  ENTAV        
 1990          
         
Small distribution clone, few available references
1223  Gard  IFV        
 2014  Languedoc-Roussillon        
         
distinctive wines of the vine variety