Danuta B
Name of vine variety in France
Danuta
Origin
This variety was obtained in 1964 by INRA by crossbreeding Dattier de Beyrouth B and Sultana moscata B
Synonymy
There is no officially recognized synonym in France, nor in other countries in the European Union.
Regulations
In France, Danuta B is officially listed in the "Catalogue of vine varieties".
Use
Wine grape variety
Evolution of area under vines in France
2000 2008 2016
ha 3 2 1.1
Description
Identification signs include:
- the tips of the young shoots have a sparse cover of flat-lying hairs,
- young leaves have bronze patches,
- orbicular adult leaves, 5 or 7-lobed, with a slightly open petiolar sinus with a U-shaped base, frequently limited by a vein near the petiolar point; medium teeth with straight or convex edges, slight anthocyanin pigmentation of veins; flat leaf blade, slightly involute, shiny, finely bubbled; underside with an absence or sparse cover of upright and flat-lying hairs,
- ovoid or long elliptic shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 133 223 239 182 186 248 248 233 249
Allel 2 147 232 249 191 188 252 254 267 257
Phenology
Bud burst: 2 days after Chasselas. Grape maturity: period II, 2 and 1/2 weeks after Chasselas
Suitability for cultivation and agronomic production
Danuta B has medium to strong vigor and semi-erect growth. The shoots are long and wind-sensitive. It must be carefully trained and long pruned.  Danuta B is not very sensitive to drop and millerandage buts its berries are sometimes subject to bursting in the event of rain at the end maturation.
Sensitivity to diseases and pests
Danuta B is sensitive to powdery mildew, downy mildew and phomopsis.
Technological potential
Danuta B grape clusters are very large, long and not very compact. The berries are seedless, medium size with not very thick skins with firm pulp and simple flavor characterized by a moderate gustative quality. There may sometimes be soft but not very noticebale seeds.  The practice of pinching out the clusters can improve the presentation. It is preferable for the clusters to be well exposed in order to obtain good berry coloration. This variety has average capacity for storage and long distance transport.
Clonal selection in France
The only approved Danuta B clone carries the number 973.
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.
- Dictionnaire encyclopédique des cépages. P. Galet, 2000, Ed. Hachette, 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
973    INRA        
 1990