Muscat Ottonel B
Name of vine variety in France
Muscat Ottonel
Origin
This variety was obtained by Mr. Moreau-Robert in the 19th century. Based on genetic analyses carried out in Montpellier, it comes from the crossbreeding between Chasselas B and Muscat d’Eisenstadt B.
Synonymy
There is no recognized synonym for this variety in France. In the European Union, Muscat Ottonel B can officially be called by other names: Moscato Ottonel B (Italy), Moschato Samou (Cyprus), Muskat Ottonel (Germany, Austria, Bulgaria, Czech Republic, Slovenia, Slovakia), Ottonel muskotály (Hungary).
Regulations
In France, Muscat Ottonel B is officially listed in the "Catalogue of Vine Varieties".

This variety is likewise listed in the Catalogues of other European Union member states: Germany, Austria, Bulgaria, Cyprus, Italy, Hungary, Luxemburg, Czech Republic, Romania, Slovakia and Slovenia.
Use
Wine vine variety
Evolution of area under vines in France
1968 1979 1988 1998 2008 2016
ha 192 446 429 158 162 159
Description
Identification signs include:
- the tips of the young shoot have a sparse coat of flat-lying hairs,
- reddish color young leaves,
- shoots with long tendrils and internodes with red stripes,
- orbicular adult leaves, 3 or 5-lobed, with a slightly open or closed petiole sinus, teeth with short or moderate convex sides compared to width at base; absence of anthocyanin coloration of veins, flat leaf blade, smooth, with a sparse or moderate coat of upright hairs on the outer veins and on the underside a moderate to dense cover of upright hairs,
- round-shaped berries with muscaté flavor.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 176 188 256 248 257 239
Allel 2 141 225 243 186 194 260 254 267 263
Phenology
Bud burst: 6 days after Chasselas.Grape maturity: period I, like Chasselas.
Suitability for cultivation and agronomic production
Muscat Ottonel B is an early and weak vine variety, with horizontal growth. Relatively insensitive to chlorosis, it is well adapted to clay-limestone  terroirs. On the other hand, it is sensitive to shot berries.
Sensitivity to diseases and pests
Muscat Ottonel B is sensitive to downy mildew and grey rot.
Technological potential
The grape clusters are small to moderate size and the berries are moderate to large. This variety was good sugar potential and can produce aromatic dry and liqueur wines.
Clonal selection in France
The only approved Muscat Ottonel B clone carries the number 59.
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
59  Haut-Rhin  INRA        
 1971  Alsace        
 1.24 ha        
In the survey collection, the clone conforms to the characteristics of the grape variety in terms of behavior. These wines are characterized by its good quality level and its distinctiveness.