Uva biancona B
New
Name of the variety in France
Uva biancona
Origin
This variety is originally from 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, Uva biancona is officially listed in the "Catalogue of vine varieties" since 2020 on the A list and temporarily classified.
Use
Wine grape variety.
Descriptive elements
The identification is based on:
- the tip of the young shoot with a low to very low density of prostate hairs,
- the green yellowish young leaves,
- the short internodes,
- the adult leaves with three or five lobes, deep V shapes lateral sinuses with slightly overlapping lobes, a V shaped not very open or closed petiole sinus with overlapping lobes and often a tooth on the edge, long teeth compared to their width at the base with straight sides, no anthocyanin pigmentation of veins, a finely blistered, slightly twisted or involute leaf blade, and on the lower side of the leaves, no erect and prostate hairs,
- the round-shaped or slightly obloid.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 141 225 239 176 188 252 240 233 249
Allel 2 141 238 257 178 194 260 254 270 255
Phenology
Bud burst: 8 days after Chasselas.
Grape maturity: late-season, 5 weeks and a half after Chasselas
Suitability for cultivation and agronomic production
Uva biancona is a vigorous, very productive variety that must be pruned short. It has a semi-erect to erect bearing. The bunches can be preserved for a long time on the vine, up until November or December, without alteration. This variety is a little sensitive to coulure.
Susceptibility to diseases and pests
Uva biancona is sensitive to esca and also seems to be quite sensitive to downy mildew. In some vintage, this variety can be susceptible to sour rot.
Technological potentiality
Uva biancona's bunches are large in size and compact. The berries are medium, simple-flavored, with a thick skin and a juicy pulp. Juice yield is low. The musts are a little sensitive to oxidation. The wines are low in alcohol, a strong acidity and neutral aromas. Uva biancona can be interesting to improve the liveliness in blends.
Clonal selection in France
There is no certified clone for this variety yet. A conservatory of three clones has been planted in Corsica in 2006.
Bibliographic references
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Traité général de viticulture, Ampélographie. P. Viala and V. Vermorel, 1901-1910, Ed. Masson, Paris, France, (under the name « Biancone »).
- Registre Ampélographique International. 1961-1972, Ed. OIV, France, (under the name « Biancone »).
- Les cépages insulaires ou le Riacquistu des cépages corses. CRVI de Corse, 2016, San Giuliano, France.
- Wine Grape Varieties of Australie. G.Kerridge and A. Anticliff, 1999, Ed. CSIRO, Australia (under the name « Biancone »).

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.