Rossula bianca B
New
Name of the variety in France
Rossula bianca
Origin
This variety is probably originally from South Corsica.
Synonyms
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
Legal information
In France, Rossula bianca is officially listed in the "Catalogue of vine varieties" since 2020 on the A list but is not yet classified.
Use
Wine grape variety.
Descriptive elements
The identification is based on:
- the white tip of the young shoot with a high density of prostate hairs,
- the green young leaves with bronze spots with a high density of prostate hairs,
- the shoots with red-striped internodes,
- the pentagonal, dark green adult leaves, entire or with three lobes, with a closed V-shaped petiole sinus or with overlapping lobes and sometimes a tooth on the edge, small to medium teeth, rather long compared to their width at the base with straight sides, no anthocyanin coloration of veins, a blistered, involute leaf blade, slightly revolute on the edges, undulate between the veins, and on the lower side of the leaves, no erect hairs and a high density of prostate hairs,
- the round-shaped or slightly ellipsoid berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 133 223 233 178 238 233 261
Allel 2 149 229 247 186 254 243 271
Phenology
Bud burst: 7 days after Chasselas.
Grape maturity: late-season, 4 weeks to 4 weeks and a half after Chasselas.
Suitability for cultivation and agronomic production
Rossula bianca is vigorous and fertile. This variety has a semi-erect to erect bearing and it is a little sensitive to wind and to drought.
Susceptibility to diseases and pests
Rossula bianca does not seem to be particularly susceptible to downy mildew and powdery mildew. It is also not very affected by grey rot. However, this variety is sensitive to esca.
Technological potentiality
Rossula bianca’s bunches are medium in size and compact. The berries are also medium, simple-flavored, with a moderately thick skin. Rossula bianca wines are alcoholic, full-bodied, not very expressive and they last long on the palate. The wines can sometimes lack a little bit of acidity.
Clonal selection in France
There is no certified clone for this variety yet. A conservatory of 14 clones was planted in Corsica.
Bibliographic references
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Les cépages insulaires ou le Riacquistu des cépages corses. CRVI de Corse, 2016, San Giuliano, France.

Publications of CIVAM Corse : Lexique des noms corses de cépages, November 1989, updated in December 1992 ; Caractéristiques générales et aptitudes des cépages corses, May 1995.