Saint-Pierre doré B
Name of the variety in France

Saint-Pierre doré
Origin

This variety is native to the Allier region and, based on published genetic analyses, it is probably a descendant of Gouais blanc and Sauvignonasse.
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, Saint-Pierre doré 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 | 2018 | |
---|---|---|---|---|---|
ha | 123 | 81 | 6 | 2 | 0.3 |
Descriptive elements

The identification is based on:
- the tip of the young shoot with a medium to high density of prostrate hairs,
- the young leaves with bronze spots,
- the shoots with red internodes,
- the circular adult leaves, entire or with three lobes, a slightly open petiole sinus or with slightly overlapping lobes, very long teeth compared to their width at the base with straight sides, a moderate anthocyanin coloration of veins, a twisted, goffered and blistered leaf blade, undulate between the main veins, and on the lower side of the leaves, a low density of erect and prostrate hairs,
- the round-shaped berries.
- the tip of the young shoot with a medium to high density of prostrate hairs,
- the young leaves with bronze spots,
- the shoots with red internodes,
- the circular adult leaves, entire or with three lobes, a slightly open petiole sinus or with slightly overlapping lobes, very long teeth compared to their width at the base with straight sides, a moderate anthocyanin coloration of veins, a twisted, goffered and blistered leaf blade, undulate between the main veins, and on the lower side of the leaves, a low density of erect and prostrate hairs,
- the round-shaped berries.
Genetic profile

Microsatellite | VVS2 | VVMD5 | VVMD7 | VVMD27 | VRZAG62 | VRZAG79 | VVMD25 | VVMD28 | VVMD32 |
---|---|---|---|---|---|---|---|---|---|
Allel 1 | 131 | 225 | 239 | 176 | 188 | 238 | 240 | 233 | 255 |
Allel 2 | 141 | 232 | 239 | 182 | 196 | 252 | 254 | 245 | 271 |
Phenology

Bud burst: 6 days after Chasselas.
Grape maturity: mid-season, 2 weeks after Chasselas.
Grape maturity: mid-season, 2 weeks after Chasselas.
Suitability for cultivation and agronomic production

Saint-Pierre doré is moderately vigorous, rather productive and should be pruned moderately long.
Susceptibility to diseases and pests

Saint-Pierre doré is extremely susceptible to grey rot but is however not very affected by powdery and downy mildew.
Technological potentiality

The bunches are large and the berries are medium in size. Saint-Pierre doré produces relatively acidic, ordinary wines with low alcohol degree. The wines can possibly be used as a base wines for sparkling wines.
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 - 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.
- 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.