Rèze B
Name of vine variety in France
Rèze
Origin
This variety is originally from Switzerland.
Synonymy
There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.
Regulations
In France, Rèze is officially listed in the "Catalogue of vine varieties" since 2015 on the A list and classified.
Use
Wine grape variety.
Evolution of area under vines in France
2018
ha 0.1
Description
The identification is based on:
- the tip of the young shoot with a low density of prostate hairs,
- the light green young leaves with no erect hairs,
- the shoots with green or red-striped internodes,
- the small to medium, pentagonal adult leaves, with three or five lobes, moderately deep upper lateral sinuses, an open U-shaped petiole sinus, medium to long teeth compared to their width at the base with convex or straight sides, no anthocyanin coloration of veins, a flat, sometimes twisted and finely blistered leaf blade, and on the lower side of the leaves, no erect and prostate hairs,
- the round-shaped or slightly ellipsoid berries that can become golden or slightly pigmented when fully ripe.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 247 182 194 248 238 243 239
Allel 2 131 225 249 186 200 252 240 267 261
Phenology
Bud burst: 2 days before Chasselas.
Grape maturity: early-season, 2 weeks after Chasselas.
Suitability for cultivation and agronomic production
Rèze is has a low to moderate vigor and a semi-erect bearing. Its fertility may sometimes be irregular.
Sensitivity to diseases and pests
Rèze is sensitive to grey rot.
Technological potential
Rèze's bunches are small to medium in size et moderately compact. The berries are medium, simple flavored, with a moderately thick skin and a juicy pulp. The wines are quite neutral, light, lively, acidic and with white flowers, spice or resinous trees aromas.
Clonal selection in France
There is no certified clone for this variety yet.
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.
- Principales variétés de vigne cultivées en Suisse. P. Dupraz and J-L. Spring, 2010, Ed. Agroscope, Switzerland.
- Cépages suisses, histoires et origines. J. Vouillamoz, 2017, Ed. Favre, Switzerland.