Roublot B
Name of the variety in France

Roublot
Origin

This variety is originally from the Yonne region and based on published genetic analyses, would be the result of the crossbreeding between Pinot and 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, Roublot 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

2018 | |
---|---|
ha | 0 |
Descriptive elements

The identification is based on:
- the tip of the young shoot with a medium density of prostrate hairs,
- the yellow young leaves with bronze spots,
- the adult leaves with five or seven lobes (the central lobe is divided), a slightly open petiole sinus or with slightly overlapping lobes, medium to long teeth compared to their width at the base with straight sides, a moderate anthocyanin coloration of veins, a twisted, revolute and blistered leaf blade, and on the lower side of the leaves, a medium density of erect hairs,
- the broad ellipsoid berries.
- the tip of the young shoot with a medium density of prostrate hairs,
- the yellow young leaves with bronze spots,
- the adult leaves with five or seven lobes (the central lobe is divided), a slightly open petiole sinus or with slightly overlapping lobes, medium to long teeth compared to their width at the base with straight sides, a moderate anthocyanin coloration of veins, a twisted, revolute and blistered leaf blade, and on the lower side of the leaves, a medium density of erect hairs,
- the broad ellipsoid berries.
Genetic profile

Microsatellite | VVS2 | VVMD5 | VVMD7 | VVMD27 | VRZAG62 | VRZAG79 | VVMD25 | VVMD28 | VVMD32 |
---|---|---|---|---|---|---|---|---|---|
Allel 1 | 131 | 225 | 239 | 178 | 194 | 240 | 238 | 216 | 249 |
Allel 2 | 135 | 238 | 239 | 182 | 196 | 244 | 238 | 245 | 271 |
Phenology

Bud burst: same as Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.
Suitability for cultivation and agronomic production

Roublot has a semi-erect bearing. Its fertility is Good but irregular, which is why it must be pruned long.
Susceptibility to diseases and pests

Roublot is susceptible to powdery mildew and grey rot.
Technological potentiality

The bunches and berries are small. Roublot produces fine white wines with a deep yellow color and certain aromatic typicity.
Clonal selection in France

There is no certified clone for this variety yet.
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.