Gros Manseng B
Name of vine variety in France
Gros Manseng
Origin
This variety is originally from the Pyrenees vineyards.
Synonymy
There is no officially recognized synonym in France for this variety.In Bulgarie, Gros Manseng B can officially be called "Manseng gros blanc".
Regulations
In France, Gros Manseng 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 and Spain.
Use
Wine vine variety
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2016
ha 51 59 584 1051 2022 2834 3669
Area under vines for Gros and Petit Manseng during the years 1958, 1968, 1979 and 1988
Description
Identification signs include:
- young leaves are green or yellow,
- the shoots have green internodes,
- orbicular adult leaves, whole with a petiolar sinus with slightly overlapping edges; short teeth with convex sides, absence of anthocyanin coloration of veins, leaf blade upturned on edges, slightly cupped and the underside with a thin to moderate coat of flat-lying hairs,
- round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 137 229 239 186 194 252 238 227 239
Allel 2 149 236 257 186 194 252 248 233 239
Phenology
Bud burst: same as Chasselas.Grape maturity: period III, 4 weeks after Chasselas.
Suitability for cultivation and agronomic production
This vigorous variety is rather fertile. Generally trained and long pruned, Gros Manseng B can also be short-pruned.
Sensitivity to diseases and pests
Gros Manseng B is sensitive to powdery mildew. Good resistance to grey rot and grapes keep well on the vine in view of obtaining sweet wine.
Technological potential
The clusters are moderate size while the berries are very small. This grape variety has a good sugar accumualation potential while maintaining high acidity. It can produce high quality dry and sweet wine.
Clonal selection in France
There are 8 approved Gros Manseng B clones which carry the numbers 397, 439, 572, 634, 661, 662, 731 and 764. Over 200 clones have been set up in 2 conservatories: one in the Pyrénées-Atlantiques (Jurançon) in 1996, and the other in the Gers in 1997.
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
397  Pyrénées-Atlantiques  ENTAV;INRA  medium  medium  medium  
 1975  Sud-Ouest  medium  medium  medium to high  
 2.69 ha  medium      distinctive wines of the vine variety
Later maturity clone
439  Pyrénées-Atlantiques  ENTAV;INRA  low to medium  medium  medium  
 1976  Sud-Ouest  low to medium  medium  low to medium  
 1.95 ha  medium      distinctive wines of the vine variety
Clone appreciated for its low to moderate production quantity
572  Pyrénées-Atlantiques  ENTAV  medium  medium  medium  
 1978  Sud-Ouest  medium  medium  medium  
 1.27 ha  medium      good distinctive refined wines
634  Pyrénées-Atlantiques  ENTAV  medium  medium  medium  
 1979  Sud-Ouest  medium  medium  medium  
 1.18 ha  medium      distinctive wines of the vine variety
661  Pyrénées-Atlantiques  ENTAV  medium  medium  medium  
 1980  Sud-Ouest  medium  medium  medium  
 1.69 ha  medium      distinctive wines of the vine variety
More upright growth
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
662  Pyrénées-Atlantiques  ENTAV  medium  medium  medium  
 1980  Sud-Ouest  low to medium  medium to low  low to medium  
 0.20 ha  low to medium      good distinctive refined wines
Earlier maturity clone
731  Pyrénées-Atlantiques  ENTAV  medium  medium  medium  
 1981  Sud-Ouest  medium  medium  medium  
 1.40 ha  medium      distinctive wines of the vine variety
764  Pyrénées-Atlantiques  INRA  medium  medium  medium  
 1981  Sud-Ouest  medium  medium  medium to high  
   medium      distinctive wines of the vine variety