Terret blanc B
Name of vine variety in France
Terret blanc
Origin
This variety corresponds to the white mutation of Terret noir N.
Synonymy
Regulations
In France, Terret blanc B is officially listed in the "Catalogue of vine varieties".
Use
Wine vine variety
Evolution of area under vines in France
1958 1968 1979 1988 1998 2008 2016
ha 15017 13384 8987 6191 3076 1796 876
From 1958 to 1988 Terret blanc B and gris G
Description
The description corresponds to Terret noir N except for the the skin color of the berries which at maturity is greenish-yellow with elliptical-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 243 176 188 252 238 257 239
Allel 2 131 223 247 182 204 252 240 257 239
Phenology
Bud burst: 9 days after Chasselas.
Grape maturity: period III, 5 weeks after Chasselas.
Suitability for cultivation and agronomic production
Terret blanc B displays aptitudes comparable to Terret noir N.
Sensitivity to diseases and pests
Terret blanc B is especially sensitive to powdery mildew.
Technological potential
The grape clusters are large and the berries moderate in size. Terret blanc B can produce neutral wines with relatively high acidity. 
Clonal selection in France
The 2 approved Terret blanc B clones carry the numbers 1071 and 1072. A conservatory with over 300 clones was set up in 2001 in Hérault.
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 1. 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
1071  Hérault  ENTAV  low to medium  medium  medium  
 2003  Domaine de l'Espiguette
Languedoc
 medium    medium  
   low to medium      distinctive wines of the vine variety
1072  Hérault  ENTAV  low to medium  medium  medium to high  
 2003  Domaine de l'Espiguette
Languedoc
 low    low  
   low to medium      distinctive wines of the vine variety