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 prostate 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 prostate 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.
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.