Bia B
Name of the variety in France
Bia
Origin
Bia is an old variety from the Isère valley and the Rhône region.
Synonyms
In France, this variety can officially be called "Bia blanc" regarding plant propagation material.
Legal information
In France, Bia is officially listed in the "Catalogue of vine varieties" since 2011 on the A list and classified.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1968 1979 2018
ha 21 10 0.1 0.1
Descriptive elements
The identification is based on:
- the tip of the young shoot with a high density of prostate hairs,
- the green young leaves with slightly bronze spots,
- the shoots with a ribbed surface,
- the circular adult leaves, with five or seven lobes, fairly deep lateral sinuses, an open U-shaped petiole sinus, small to medium teeth with straight sides, no anthocyanin coloration of veins, a flat or slightly involute, finely blistered leaf blade, and on the lower side of the leaves, a low to medium density of erect and prostate hairs,
- the slightly ellipsoid berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 135 225 257 186 188 252 238 216 239
Allel 2 149 236 260 191 194 260 262 257 261
Phenology
Bud burst: 5 days after Chasselas.
Grape maturity: late-season, 3 weeks and a half after Chasselas.
Suitability for cultivation and agronomic production
Bia is moderately vigorous, with a semi-erect bearing, and is generally pruned long.
Susceptibility to diseases and pests
Bia is a little susceptible to downy mildew and grey rot.
Technological potentiality
Bia's bunches and berries are medium in size. This variety, with a very good balance between sugar potential and acidty, produces pleasant, elegant and slightly aromatic wines.
Clonal selection in France
The only certified Bia clone carries the number 1282.
Bibliographic references
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Montpellier SupAgro, Marseillan, France.
- Dictionnaire encyclopédique des cépages et de leurs synonymes. P. Galet, 2015, Ed. Libre&Solidaire, France.
- Traité général de viticulture, Ampélographie. P. Viala and V. Vermorel, 1901-1909, Ed. Masson, Paris, France.
- Le vignoble. A. Mas and V. Pulliat, 1874-1879, Ed. Masson, Paris, France.
- Registre Ampélographique International. 1961-1972, Ed. OIV, France.
Description of clones certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
1282 Savoie Centre Ampélographie Alpine - IFV 2018