RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The RG9 rootstock is part of a series of rootstocks created to study adaptive properties to Mediterranean soil and climatic conditions. During agronomic trials, the genotype demonstrated efficiency in water resource utilization, although some studies recorded differences in the intensity of water transport depending on experimental conditions.
Anatomical studies show that the rootstock possesses wide xylem vessels with a diameter of more than 75 µm, which is considered in the context of susceptibility to wood diseases. The influence of the rootstock on mineral nutrition was also noted: when used, a higher concentration of nitrogen can be recorded in scion tissues compared to a number of commercial rootstocks.
2 jurisdictions
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.
№ 20180349
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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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
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VITIS NAVARRA SAT 718NA
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VITIS NAVARRA SAT 718NA
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Nearby in the species list Réka, Remus, Renski rizling, Réselle, RESSEGIER SELEC BIROLLEAU Nº 1, Retagliado bianco B., Rèze, Rezi Róza, RG10, RG8, Rhea, Rheinriesling, Rhine Riesling, Ribier, RIBOL, Ribol N, Ribolla, Ribolla gialla, Ribolla gialla B., Ribolla nera