Peloursin

N

Wine grape variety.

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Origin

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).

Peloursin is an old variety that probably comes from the Grésivaudan valley, in Isère region. Based on genetic analyses carried out in Montpellier, it would be a parent of Durif and Joubertin.

Use

This information indicates the normal and statutory use for the grapes.

Wine grape variety.

Name of the variety in France

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.

Peloursin

Synonymy

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.

There is no officially recognized synonym in France nor in the other countries of the European Union, for this variety.

Regulatory data

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, Peloursin is officially listed in the "Catalogue of vine varieties" since 2016 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.

Year
ha

2018

0.1

Description elements

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.

The identification is based on:
- the white tip of the young shoot with a piping anthocyanin coloration and a medium density of prostrate hairs,
- the young leaves with bronze spots and a low to medium density of prostrate hairs,
- the shoots with red-striped internodes,
- the medium size, dark green adult leaves, with five or seven lobes, deep U-shaped lateral sinuses, an open U-shaped petiole sinus, mucronate teeth, medium or long compared to their width at the base with straight sides or with one side concave and one side convex, a weak or moderate anthocyanin coloration, a flat or slightly revolute, sometimes twisted leaf blade, strongly blistered, that can be slightly goffered and folded near the petiole sinus, and on the lower side of the blade, a low density of erect and prostrate hairs,
- the round-shaped or ellipsoid berries.

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

131

223

251

176

194

248

240

235

249

Allele 2

149

229

257

186

200

252

248

247

251

Cultivation and agronomic skills

The data on suitability are the result of field observations or, if none are available, of bibliography mining and the study of bibliographic references.

Peloursin is a vigorous and productive variety, with a semi-erect bearing. It is not susceptible to winter frosts. In the fall, the Peloursin's leaves tend to become pimgmented and turn red.

Susceptibility to Diseases and Pests

These remarks are also the result of field observations or, if none are available, of bibliography mining and study of bibliographic references.

Peloursin does not seem particularly susceptible to powdery and downy mildew. However, it is susceptible to grey rot, black rot and Grape moths (Cochylis).

Phenology

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: 5 days after Chasselas.
Grape maturity: mid-season, 2 weeks and a half after Chasselas.

Technological potential

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.

Peloursin's bunches are medium in size and compact. The berries are also medium in size, simple-flavored, with a moderately thick skin, a rather significant bloom and a juicy pulp. This variety gives quite colored, ordinary, not very tannic and not very acidic wines. In its region of origin, Peloursin is blended with Persan or Durif.

Clonal selection in France

In this section, the list of certified clones is given. Information on clone conservatories is also provided.

There is no certified clone for this variety yet.

Bibliographic references

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 Grapes. J. Robinson et al., 2012, Ed. Penguin, England.