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34 EM

Active

Vitis L. Grapevine · Fruit crops · bred by INCONNU (FR)

also searched as: 34 ем

Variety description

10 August 2026

The variety is a hybrid of Vitis berlandieri and Vitis riparia. The vines are characterized by high growth vigor, and the male-type flowers do not produce fruit. The rootstock possesses marked resistance to the root form of phylloxera, good resistance to the nematode Meloidogyne incognita, and moderate resistance to Meloidogyne arenaria.

The plant is resistant to fungal diseases and frost. It adapts well to light, fine-earth, humus soils but shows sensitivity to dry, stony, and marly sites. The use of this rootstock promotes earlier development of grafted varieties, which accelerates the progression of the growing season.

Sources6
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Countries of admission

1 jurisdiction

Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.

active no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder
(Inconnu) (FR) 2 336 Developed the variety
Applicant
(Inconnu) (FR) 2 336 Submitted the application to the register
Maintainer
Institut Francais de la Vigne et du Vin (FR) 580 Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

  • FR France Active

    № 1035326

    Registration
    1 January 1900

Records are sourced from official registry publications. Data sources and legal status

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Same species

Other varieties: Grapevine

All 4 075 varieties of species

RS-9

Active

Vitis L. · Grapevine

UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER

9 records

RS-3

Active

Vitis L. · Grapevine

UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER

9 records

4010 Cl

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
1 record

Nearby in the species list 23657 Seyve-Villard, 244 Landot, 261-50 Couderc, 26205 Joannès Seyve, 26205 Joannès Seyve, 31 RICHTER, 3309 C, 3309 Couderc, 333 Ecole de Montpellier, 333 ESCUELA DE MONTPELLIER, 4010 Cl, 41 B Millardet et de Grasset, 41 B MILLARDET GRASSET, 420 A Millardet et de Grasset, 420 MILLARDET GRASSET, 44-53 M, 4986 Seibel, 5 A MARTINEZ ZAPORTA, 5 BB TELEKI KOBER, 5276 Seyve-Villard

Discussion: 34 EM

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