Trousseau N
Name of the variety in France
Trousseau
Origin
This variety, originally from the Jura region is, based on genetic analyses carried out in Montpellier, probably a descendant of Savagnin.
Synonyms
In the European Union, Trousseau is officially called by other names: Bastardo (Cyprus, Portugal) and Merenzao (Spain). These synonyms are officially recognized in France regarding plant propagation material.
Legal information
In France, Trousseau 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: Cyprus, Portugal and Spain.
Use
Wine grape variety.
Evolution of cultivated areas in France
1958 1968 1979 1988 1998 2008 2018
ha 166 143 76 85 139 165 177
Descriptive elements
The identification is based on:
- the tip of the young shoot with a high density of prostate hairsand a piping distribution of anthocyanin coloration,
- the circular adult leaves, with five lobes, shallow lateral sinuses, a slightly open petiole sinus or with slightly overlapping lobes with opposing edges towards the lower side, short teeth with convex sides, no or a weak anthocyanin coloration of veins, a twisted, slightly goffered, very blistered and folded near the petiole sinus leaf blade, and on the lower side of the leaves, a low to medium density of prostate hairs,
- the ellipsoid berries.
Genetic profile
Microsatellite VVS2 VVMD5 VVMD7 VVMD27 VRZAG62 VRZAG79 VVMD25 VVMD28 VVMD32
Allel 1 141 236 239 172 188 246 248 233 239
Allel 2 149 236 257 186 188 248 254 247 255
Phenology
Bud burst: 2 days after Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.
Suitability for cultivation and agronomic production
Trousseau is a vigorous variety which must be planted in well exposed terroirs to reach proper maturity. Short or long pruning suits it well according to climatic conditions.
Susceptibility to diseases and pests
Trousseau is fairly susceptible to diseases, particularly to grey rot. It is also quite suscpetible to vine leafhoppers and sensitive to wood diseases.
Technological potentiality
The bunches are small and the berries are medium in size. Trousseau produces characteristic, warm and full-bodied wines, with a light color if the yields are high. This variety's sugar accumulation potential is high.
Clonal selection in France
The seven certified Trousseau clones carry the numbers 1004, 1017, 1021, 1026, 1114, 1277 and 1278. A conservatory of fifty or so clones was planted in the French department of Jura in 2005. An other conservatory of ten clones was planted in the French department of Charente in 2013.
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.
Description of clones certified in France
Identity and availability Agronomic data Technological data Autres informations
Clone no. Marque Origin Selection Year of
certification
Agronomic
references
Surface area used
for propagation (year)
Fertility Production
level
Bunch
weight
Vigor Berry
size
Susceptibility
to grey rot
Sugar
level
Color
potential
Titrable
acidity
Tannic
structure
Aromatic
intensity
Oenological
suitability
New General
note
Agro-tecnic
note
Note
agronomique
Agronomic
note
Links
1004 Jura ENTAV 1993 Jura 0.11 ha low to medium medium to high medium to high colored, balanced wines, representative of the variety clone appreciated for the quality of the wines obtained
1017 Jura ENTAV 1998 Jura 0.06 ha low to medium medium to high representative wines of the variety
1021 Jura ENTAV 1994 Jura 0.05 ha medium to high high medium balanced wines, representative of the variety yield must be managed
1026 Jura ENTAV 1995 Jura 0.08 ha low to medium medium to high representative wines of the variety regular production clone
1114 Jura Société de Viticulture Jura - IFV 2007 Jura low low low medium to high medium to high medium medium to high fine, colored, tannic and well-balanced wines. Suited to the production of wines with ageing potential. this type of Trousseau is locally known as "à la dame" Qualitative clone, not very productive with a good maturity. It produces wines appreciated in tasting and suitable for ageing. It is also less susceptible to grey rot thanks to loose bunches, prone to coulure and millerandage.
1277 Jura Société Viticulture du Jura - IFV 2018 Jura moyenne moyen à supérieur moyen à supérieur moyenne à supérieure inférieure moyenne supérieur supérieure supérieure moyenne à supérieure vins colorés, ronds avec une bonne structure tannique ce type de Trousseau est appelé localement "à la dame" Clone qualitatif avec une production un peu supérieure à la moyenne et une bonne maturité. <br/>Il produit des vins appréciés en dégustation et aptes au vieillissement. Il est aussi moins sensible <br/>à la pourriture grise grâce à des grappes lâches (de taille parfois hétérogène), sujettes à la coulure et au millerandage.
1278 Jura Société Viticulture du Jura - IFV 2018 Jura moyenne moyen moyen moyenne à supérieure inférieure supérieure supérieur moyenne supérieure supérieure vins colorés, ronds avec une bonne structure tannique ce type de Trousseau est appelé localement "à la dame" Clone qualitatif, de production moyenne avec une bonne maturité. Il produit des vins appréciés en dégustation <br/> et aptes au vieillissement. Il est aussi moins sensible à la pourriture grise grâce à des grappes lâches, sujettes à la coulure et au millerandage.