Seyval B
Name of the variety in France
Seyval
Origin
Seyval (an interspecific hybrid) is the result of the crossbreeding between 5656 Seibel and Rayon d’Or (4986 Seibel).
Synonyms
In France, this variety can officially be called "5276 Seyve-Villard" regarding plant propagation material.
Legal information
In France, Seyval is officially listed in the "Catalogue of vine varieties" on the A list and classified. This variety is also listed in the catalogues of other Member States of the European Union: Netherlands and Romania.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1968 1998 2008 2018
ha 1309 1288 159 119 90
Descriptive elements
The identification is based on:
- the tip of the young shoot with a medium density of prostate hairs,
- the green young leaves with bronze spots,
- the entire circular adult leaves, with a slightly open or closed with overlapping lobes U-shaped petiole sinus, small to medium teeth with convex sides, a shiny and involute leaf blade, curly on the edges, and on the lower side of the leaves, a low density of prostate hairs,
- the obloid or round-shaped berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 131 223 237 186 178 260 236 235 249
Allel 2 131 250 243 186 188 262 236 251 271
Phenology
Bud burst: 3 days after Chasselas.
Grape maturity: mid-season, 2 weeks and a half after Chasselas.
Suitability for cultivation and agronomic production
Seyval is vigorous and fertile. It can be pruned short or moderately long and is preferably trained.
Susceptibility to diseases and pests
Seyval resists moderately well to downy mildew. It is slightly susceptible to grey rot and it must be grafted.
Technological potentiality
The bunches are small to medium in size. The berries are also small to medium and very bloomed. Seyval produces wines of acceptable quality.
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.
- Cépages et vignobles de France, tome 1. P. Galet, 1988, Ed. Dehan, Montpellier, France.