RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
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.
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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 1035326
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Same species
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
David W.Cain
Vitis L. · Grapevine
INCONNU (FR)
Vitis L. · Grapevine
Vitis L. · Grapevine
INCONNU (FR)
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