Verdelho B
Name of vine variety in France
Verdelho
Origin
Verdelho is a Portuguese variety found on Madeira and in the Douro valley.
Synonymy
Ther is no officially recognized synonym for this variety in France. In Spain and in Italy, Verdelho B can officially be called "Verdello".
Regulations
In France, Verdelho 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, Portugal and Italy.
Use
Wine grape variety.
Evolution of area under vines in France
1958 2016
ha 2 2.6
Description
Identification signs include:
- the tips of the young shoot have a moderate coat of flat-lying hairs,
- the young leaves are green with bronze patches,
- orbicular or slightly kidney-shaped adult leaves, whole or with shallow lateral sinuses, a U-shaped slightly open or closed petiole sinus; small to moderate teeth, short except  those corresponding to principle veins which are longer; low to moderate anthocyanin coloration of veins; bubbled leaf blade, folded at the petiole point and the underside with a sparse coat of flat-lying hairs,
-elliptical-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 219 239 178 194 248 240 233 255
Allel 2 149 229 257 186 196 252 248 245 271
Phenology
Bud burst: 4 days after Chasselas. Grape maturity: period II, 1 and 1/2 to 2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Verdelho B has moderate to strong vigor with semi-erect horizontal growth. It can be short or moderately long pruned and is preferably trellised.
Sensitivity to diseases and pests
Verdelho B is not very sensitive to downy mildew and to grey rot but is somewhat sensitive to powdery mildew.
Technological potential
Verdelho B grape clusters are small to moderate size and the berries are moderate size. Sugar potential is moderate to good. This variety produces dry and sweet wines which are appreciated, elegant and perfumed with good acidity and good ageing capacity.
Clonal selection in France
The 2 approved Verdelho B clones carry the numbers 6005 and 6006.
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.
- Dictionnaire encyclopédique des cépages. P. Galet, 2000, Ed. Hachette, Paris.
- 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
6005  Maine-et-Loire  IFV  medium  medium  medium  
 2006  Languedoc  medium    medium  
   medium      distinctive wines of the vine variety
6006  Maine-et-Loire  IFV  low  low  medium  
 2006  Languedoc  medium    medium  
   medium      distinctive wines of the vine variety