Grolleau gris G
Name of the variety in France

Grolleau gris
Origin

This variety corresponds to the grey mutation of Grolleau.
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, Grolleau gris is officially listed in the "Catalogue of vine varieties" on the A list and classified.
Use

Wine grape variety.
Evolution of cultivated areas in France

1958 | 1968 | 1979 | 1988 | 2000 | 2008 | 2018 | |
---|---|---|---|---|---|---|---|
ha | 19 | 11 | 225 | 358 | 908 | 472 | 530 |
Descriptive elements

The description corresponds to that of Grolleau except for the skin color of the berries when ripe, which is grey in this case.
Genetic profile

Microsatellite | VVS2 | VVMD5 | VVMD7 | VVMD27 | VRZAG62 | VRZAG79 | VVMD25 | VVMD28 | VVMD32 |
---|---|---|---|---|---|---|---|---|---|
Allel 1 | 131 | 236 | 247 | 172 | 204 | 244 | 240 | 243 | 239 |
Allel 2 | 141 | 238 | 249 | 178 | 204 | 252 | 254 | 245 | 271 |
Phenology

Bud burst: 1 day after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Grape maturity: mid-season, 3 weeks after Chasselas.
Suitability for cultivation and agronomic production

This variety can by managed by short pruning.
Susceptibility to diseases and pests

Grolleau gris is susceptible to grey rot.
Technological potentiality

The bunches and berries are small to medium in size. This variety produces good rosé wines (or grey wines) and sparkling wines.
Clonal selection in France

The three certified Grolleau gris clones carry the numbers 1118, 1135 and 1136. A conservatory of 15 or so clones was planted in the Franch department of Val de Loire in 1997.
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 - Institut Agro | Montpellier, 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.
- Documentary collections of the Centre de Ressources Biologiques de la Vigne de Vassal-Montpellier, INRAE - Institut Agro | Montpellier, 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
