Sugraeighteen

B

Table grape variety.

Your alt text
Your alt text
Your alt text
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).

This variety was obtained by D.W. Cain (United States of America) in 1990 and would result from the crossbreeding of Red Globe and a descendant of Muscat d'Alexandrie and Sugraone.

Use

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

Table 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.

Sugraeighteen

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, Sugraeighteen is officially listed in the "Catalogue of vine varieties" since 2014 on the A list. This variety is also listed in the catalogue of Italy.

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

Éléments de description

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 tip of the young shoot with no or a very low density of prostrate hairs,
- the young leaves that are copper or with bronze spots, and with no or a very low density of prostrate hairs,
- the shoots with green or red-striped internodes,
- the pentagonal or circular adult leaves, with three or five lobes, a slightly open V-shaped petiole sinus, moderately long teeth compared to their width at the base with straight or convex sides, no anthocyanin coloration of veins, a twisted leaf blade, folded near the petiole sinus, and on the lower side of the leaves, no or a very low density of erect and prostrate hairs,
- the round-shaped 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

133

223

249

176

186

256

248

247

249

Allele 2

149

236

251

178

204

260

254

257

271

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.

Sugraeighteen is fertile, productive and has a semi-erect bearing. This variety has a vigorous vegetation that must be managed.

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.

Sugraeighteen does not seem particularly sensitive to pests and diseases.

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: 7 days after Chasselas.
Grape maturity: early-season, same as 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.

Sugraeighteen’s bunches are large and moderately compact. The berries are large, with a muscat flavor, a thin to moderately thick skin and a firm, crunchy pulp. The seeds are soft and not very noticeable. This variety is sensitive to berry shedding and to rubbing and the berries do not have a really good storage aptitude.

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.