Ugni blanc B
Name of the variety in France
Ugni blanc
Origin
This variety is originally from Italy (Tuscany) where it is grown under the name Trebbiano toscano.
Synonyms
In the European Union, Ugni blanc is officially called by other names: Biancame (Italy), Talia (Portugal), Trebbiano (Cyprus, Malta) and Trebbiano toscano (Chypre, Italy Malta). These synonyms are officially recognized in France regarding plant propagation material.
Legal information
In France, Ugni blanc is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogues of other Member States of the European Union: Bulgaria, Croatia, Cyprus, Greece, Italy, Malta, Portugal and Spain.
Use
Wine and spirits grape variety.
Evolution of cultivated areas in France
1958 1968 1979 1988 1998 2008 2018
ha 62399 93762 127468 102973 96740 83182 87039
Descriptive elements
The identification is based on:
- the tip of the young shoot with a very high density of prostate hairs,
- the yellow young leaves,
- the shoots with indistinct or flattened nodes,
- the large, non-uniforme light green adult leaves, entire or with three or five lobes, with a slightly open petiole sinus or with overlapping lobes, medium to long teeth with straight or convex sides, no anthocyanin coloration of veins, a twisted, involute on the edges, slightly goffered and blistered leaf blade, and on the lower side of the leaves, a medium density of prostate hairs,
- the very long grape clusters, foxtail-shaped, sometimes fasciated on the tips,
- the round-shaped berries with skin that can become slightly pink when over ripe.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 249 176 194 246 240 243 249
Allel 2 141 229 253 180 200 252 254 247 271
Phenology
Bud burst: 9 days after Chasselas.
Grape maturity: mid-season, 3 weeks and a half to 4 weeks after Chasselas.
Suitability for cultivation and agronomic production
Ugni blanc is very vigorous. It is well adapted to varied training and pruning systems, as well as diverse cultural and environmental conditions (wide geographical area of cultivation). It is best if trellised, as it can be sensitive to the wind.
Susceptibility to diseases and pests
Ugni blanc is sensitive to downy mildew and eutypa dieback. It is also very sensitive to root-knot nematodes when it is grown ungrafted in sand. On the other hand, it is not very susceptible to phomopsis and grey rot on the grape clusters.
Technological potentiality
The bunches are very large while the berries are small to medium in size. Depending on growing conditions, Ugni blanc can be used to produce relatively neutral and balanced dry white wines. It can also be used to make base wines to produce great quality spirits.
Clonal selection in France
The eleven certified Ugni blanc clones carry the numbers 384, 478, 479, 480, 481, 482, 483, 484, 485, 486 and 638. A conservatory of more than 400 clones is in the process of being set up in the wine-growing region of Cognac; the first part was planted in 2006.
Bibliographic references
- Catalogue des variétés et clones de vigne cultivés en France. Collectif, 2007, Ed. IFV, Le Grau-du-Roi, France.
- 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.
- Registro nazionale delle varieta di vite. Ministère de l’agriculture italien, under the name "Trebbiano Toscano", [web site, visited in 2020].
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
384 Charente ENTAV 1975 Gers 6.66 ha medium to high high
478 Charente ENTAV 1976 Gers 2.11 ha wider bearing
479 Charente INRA 1976 Charente 26.36 ha
480 Charente INRA 1976 Charente 3.08 ha
481 Charente INRA 1976 Charente 3.59 ha medium to high
482 Charente INRA 1976 Charente
Gers
5.10 ha
483 Charente INRA 1976 Charente
Gers
7.05ha low to medium
484 Charente INRA 1976 Charente 2.20 ha
485 Charente INRA 1976 Charente 6.72 ha
486 Charente INRA 1976 Charente 5.89 ha
638 Charente ENTAV 1979 Gers 0.34 ha medium to high