Trousseau gris
G
Wine grape variety.
The geographical origin of the variety is specified or, if this is not possible, the area in which it is traditionally cultivated. The genetic origin of the variety is also indicated whenever it is known from hybridiser data or from genetic analyses published or obtained by the teams at INRAE in Montpellier (UMR AGAP) and Vassal-Montpellier Grapevine Biological Resources Centre (CRB-Vigne).
This variety corresponds to the grey mutation of Trousseau.
This information indicates the normal and statutory use for the grapes.
Wine grape variety.
Name under which the variety is officially registered in the catalogue of grapevine varieties in France and under which it may be propagated and disseminated.
Trousseau gris
Recognised alternative names that may be used to identify the propagation material of the variety in France or in other member countries of the European Union.
In France, this variety can officially be called "Chauché gris" regarding plant propagation material.
This information indicates on which list the variety is registered (A or B), whether it is classified for wine grapes, and in which member countries of the European Union the variety is also officially registered (for more information, see the "Legislation" menu.
In France, Trousseau gris is officially listed in the "Catalogue of vine varieties", since 2011 on the A list and classified.
Evolution of cultivated areas in France
The figures provided are taken from vineyard land registers (IVCC, ONIVIT, ONIVINS), general agricultural censuses (SCEES-INSEE) and the current computerised vineyard register (DGDDI, FAM).
Regional vine planting data is available on the following site: https://visionet.franceagrimer.fr/Pages/DonneesInteractivesDocs.aspx?sousmenu=observatoire%20de%20la%20viticulture.
The figures provided are taken from vineyard land registers (IVCC, ONIVIT, ONIVINS), general agricultural censuses (SCEES-INSEE) and the current computerised vineyard register (DGDDI, FAM). Regional vine planting data is available on the following site: https://visionet.franceagrimer.fr/Pages/DonneesInteractivesDocs.aspx?sousmenu=observatoire%20de%20la%20viticulture.
Year |
ha |
|
|---|---|---|
|
2018 |
3.7 |
Only the principal ampelographic elements enabling the varieties to be characterised and identified are provided. They are presented according to the descriptor code recognised by the International Organisation of Vine and Wine (OIV), the International Union for the Protection of New Varieties of Plants (UPOV), the Community Plant Variety Office (OCVV) and Bioversity International (for more information, see the "Ampelographic glossary" menu). The photographs of leaves and grapes were taken in natural conditions, on the vine, in very similar situations in terms of growing conditions (sandy soil, Mediterranean coast): - Domaine de l'Espiguette (IFV), Le Grau du Roi (Gard), - Domaine de Vassal (INRAE), Marseillan (Hérault), - La Gaillarde Campus (Institut Agro | Montpellier SupAgro), Montpellier (Hérault). Only a few photographs, including the tips of bunches, were taken in other conditions.
Genetic profile
The genetic profile of the variety is provided for the 9 microsatellite markers (or SSR markers) selected under the European programme GrapeGen06 (http://www.eu-vitis.de/index.php) and by the OIV. The absolute size values of the alleles may vary slightly from one laboratory to another, but the relative differences between the two alleles of one single microsatellite are constant. The genetic analyses were conducted by the INRAE Montpellier team (UMR AGAP) and the IFV’s Plant Material Centre.
| Microsatellite | VVS2 | VVMD5 | VVMD7 | VVMD27 | VRZAG62 | VRZAG79 | VVMD25 | VVMD28 | VVMD32 |
|---|---|---|---|---|---|---|---|---|---|
|
Allele 1 |
141 |
236 |
239 |
172 |
188 |
246 |
248 |
233 |
239 |
|
Allele 2 |
149 |
236 |
257 |
186 |
188 |
248 |
254 |
247 |
255 |
The data on suitability are the result of field observations or, if none are available, of bibliography mining and the study of bibliographic references.
Trousseau gris is vigorous and must be planted in well exposed terroirs. Short or long pruning are suitable depending on climatic conditions, taking care to aerate the center of the vine trunks to create a microclimate favorable for the bunches.
These remarks are also the result of field observations or, if none are available, of bibliography mining and study of bibliographic references.
Trousseau gris is fairly susceptible to diseases, particularly to grey rot. It can also be sensitive to mites and wasp attacks.
The growth stages indicated are the result of obsrvations made at the Domaine de Vassal Estate where the set of these varieties form a collection. The results are indicated compared to the Chasselas vine variety as a reference in order to make comparisons between years and different sites. As such, for information purposes, the dates for the Chasselas B growth stage at Domaine de Vassal are as follows: - Bud burst, 21 March (average over 50 years) - Grape maturity, 14 August (average over 50 years)
Bud burst: 1 day after Chasselas.
Grape maturity: early-season, 1 week and a half after Chasselas.
The size of grape clusters and berries indicated are based on the following scales: - Wine grape varieties Size : Very small Bunch (g) : ≤ 100 Berry (g) : 1 - Table grape varieties Bunch (g) : 150 Berry (g) : 2 - Wine grape varieties Size : Small Bunch (g) : 100 - 200 Berry (g) : 1,5 - 2 - Table grape varieties Bunch (g) : 150 - 250 Berry (g) : 2 - 3,5 - Wine grape varieties Size : Moderate Bunch (g) : 200 - 250 Berry (g) : 2 - 2,5 - Table grape varieties Bunch (g) : 250 - 400 Berry (g) : 3,5 - 5,5 - Wine grape varieties Size : Large Bunch (g) : 250 - 400 Berry (g) : 2,5 - 3,5 - Table grape varieties Bunch (g) : 400 - 700 Berry (g) : 5,5 - 8 - Wine grape varieties Size : Very large Bunch (g) : 400 Berry (g) : 3,5 - Table grape varieties Bunch (g) : 700 Berry (g) : 8 Remarks concerning the characteristics of the wines are generally based on tastings organised by juries of professionals.
The bunches are small and the berries are medium in size. Trousseau gris produces typical, aromatic and full-bodied wines. This variety has high sugar accumulation potential, making it suitable for the production of mistelle wines or liqueur wines.
In this section, the list of certified clones is given. Information on clone conservatories is also provided.
The only certified Trousseau gris clone carries the number 1259. A conservatory of 5 clones was planted in Charente in 2009.
Bibliography
- 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.
- Wine Grape Varieties in California. L. Christensen et al., 2003, Ed. University of California Agriculture and Natural Ressources, United States of America.
- General viticulture. A. J. Winckler et al., 1974, United States of America.
- Revue des Œnologues n°122, 2007. "Prospection et valorisation du cépage Trousseau gris dans les Charentes", France.
Description of clones approved in France
In this section, the list of certified clones is given. Information on clone conservatories is also provided.
In this section, the list of certified clones is given. Information on clone conservatories is also provided.
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Clone number
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Brand
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Origin
Region, department or winegrowing region in which the “clone mother plant” was identified and selected.
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Selection
Body or bodies which selected the clone. In France, clonal selection is the responsibility of the selection organisations (themselves accredited by the ministry in charge of agriculture), usually in close collaboration with a technical partner working in a winegrowing region. For clones certified after 1999, the name of the partner or partners who took part in the selection work is also included. (NB: CA = Chamber of Agriculture).
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Year of approval
Year in which the clone was certified by the FranceAgriMer board further to a proposal by the Vine section of the CTPS (Permanent Technical Committee for Plant Selection).
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Agronomic Reference
Region, department or winegrowing region in which the agronomic and technological data were collected.
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Surface in multiplication
Surface area in hectares (ha) of stock nurseries used for propagation for the year under consideration (in brackets), which allows the available potential to be evaluated. Clones with a surface area of between 0.01 and 0.10 ha are shown as <0.10 ha. Clones of limited dissemination, but for which we have technical data, are shown as <0.01 ha. Other clones are given as “low-dissemination clone”, which means that the clone has been certified only recently or has not been propagated. In both cases, only the initial material is planted in the selection centres.
-
G
-
1259
-
-
Charente
-
CVC - IFV
-
2017
-
-
-
-
