Romorantin B
Name of vine variety in France
Romorantin
Origin
This vine variety would appear to originally be from the center of France and based on published genetic studies is derived from the crossbreeding of coloring Pinot teinturier N and Gouais B.
Synonymy
In France, this variety can officially be called "Danery B" with regard to plant propagation material.
Regulations
In France, Romorantin 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 2000 2008 2016
ha 680 581 271 156 231 74 80
Description
Identification signs include:
- the tip of the young shoot has a thick coat of flat-lying hairs,
- the young leaves are yellow with bronze patches,
- the shoot with the internodes are reddish purple,
- adult leaves are dark green, whole or 3 lobed with a V-shaped open petiolar sinus; short teeth compared to width at base, straight sides, upturned leafblade with revolute edges, largely bubbled, cupped and the underside with a moderate coat of upright and flat-lying hairs,
- round or slightly flattened berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 126 232 243 176 188 238 238 227 249
Allel 2 131 236 249 186 204 246 248 235 271
Phenology
Bud burst: 1 day after le Chasselas.
Grape maturity: period II, 2 and 1/2 to 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
This vine variety is fairly fertile and productive. Grown upright it can be long or short pruned. It must be grown on adapted and early terroirs.
Sensitivity to diseases and pests
Romorantin B is moderately susceptible to grey rot and grape caterpillars.
Technological potential
Grape clusters are moderate to large while the berries are small. Romorantin B produces fairly fine, fruity and pleasant wines.
Clonal selection in France
The 4 approved Romorantin B clones carry the numbers 466, 873, 928 and 929. A conservatory with 50 or so clones was set up in Loir-et-Cher in 2007.
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
466  Loir-et-Cher  ENTAV        
 1976  Loir-et-Cher        
         
Small distribution clone
873  Loir-et-Cher  ENTAV        
 1986  Loir-et-Cher        
         
Small distribution clone
928  Non précisée  INRA        
 1988  Loir-et-Cher        
         
Small distribution clone
929  Non précisée  INRA        
 1988  Loir-et-Cher        
         
Small distribution clone