Montils B
Name of vine variety in France
This vine variety is originally from the west of  France and base on published genetic analyses, it is probably a descendant of Gouais B.
In France, Montils B is officially listed in the "Catalogue of vine varieties".
Wine and eaux-de-vie vine variety
Evolution of area under vines in France
1958 1968 1979 1988 2000 2008 2016
ha 324 174 10 5 141 160 186
Identification signs include:
- the tip fo the young shoot has a dense coat of flat-lying hairs,
- the young leaves are yellow,
- adult leaves are dark green and have 5 lobes with a closed petiolar sinus with slightly overlapping lobes or parallel sides; lateral sinuses with a U-shaped base, short teeth compared to width at base, absence of anthocyanin coloration of veins, flat or slightly upturned leaf blade, smooth and the underside with a moderate coat of upright and flat-lying hairs,
- round-shaped berries.
Genetic profile
Allel 1 131 223 243 178 196 244 238 245 239
Allel 2 149 232 249 182 204 252 248 257 249
Bud burst: 5 days after Chasselas.
Grape maturity: period II, 2 and 1/2 weeks after Chasselas.
Suitability for cultivation and agronomic production
This vine variety is not very vigorous and should be moderately pruned. Its early bud burst exposes to the risk of spring frost.
Sensitivity to diseases and pests
Montils B is susceptible to grey rot when the grapes reach maturity.
Technological potential
Grape clusters are moderate size and the berries small to moderate size.  Distilling Montils B wine produces good quality eaux-de-vie. Musts obtained from this grape variey can be used to make mistelles.
Clonal selection in France
The 3 approved Montils B clones carry the numbers 984, 985 and 986. A conservatory of 100 clones was set up in the Charente region in 2004.
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
984  Charente-Maritime  ENTAV    low    
 1992  Charente        
 0.67 ha        distinctive wines of the vine variety
985  Charente-Maritime  ENTAV        
 1992  Charente        
 0.54 ha        
Little difference with clone 984
986  Charente-Maritime  ENTAV        
 1992  Charente        
 0.74 ha        
Little difference with clone 984