Jacquère B
Name of the variety in France
Jacquère
Origin
This variety native to the Savoie region is, based on published genetic analyses, probably a descendant of Gouais blanc.
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, Jacquère is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogue du Portugal.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1968 1979 1988 1998 2008 2018
ha 1362 1491 855 995 1104 1079 920
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 bronze spots,
- the adult leaves with three or five lobes, an open V-shaped petiole sinus, long teeth compared to their width at the base with straight sides, a moderate to strong anthocyanin coloration of veins, an involute leaf blade, and on the lower side of the leaves, a low density of prostate hairs,
- the round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 239 176 196 244 240 227 239
Allel 2 141 232 249 178 204 252 254 245 271
Phenology
Bud burst: 1 day after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production
Jacquère is fairly fertile, regularly productive with moderate vigor. It is better to pune it short. Jacquère is well adapted to clay-limestone and rocky scree terroirs.
Susceptibility to diseases and pests
This variety is susceptible to black rot and grey rot but is less sensitive to downy and powdery mildew.
Technological potentiality
The bunches and berries are medium in size. Jacquère produces wines that are pale, light (slightly floral), lively (acidic, but with pleasant freshness), often with a sparkling note. These wines need to be consumed quickly.
Clonal selection in France
The five certified Jacquère clones carry the numbers 569, 658, 769, 788 and 923. A conservatory of more than 70 clones was planted in the French department of Savoie in 2015.
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.
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
569 Savoie ENTAV 1978 Savoie 0.14 ha medium medium medium medium medium medium medium representative wines of the variety
658 Savoie ENTAV 1980 Savoie 0.10 ha medium to high medium to high medium medium medium medium medium representative wines of the variety
769 Savoie ENTAV 1981 Savoie 0.10 ha low to medium low to medium medium medium medium to high medium medium representative wines of the variety
788 Savoie ENTAV 1984 Savoie 0.10 ha medium medium to high medium to high medium low to medium medium medium representative wines of the variety
923 Savoie ENTAV 1988 Savoie low to medium low to medium medium medium medium medium representative wines of the variety