RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is a complex hybrid derived from Vitis berlandieri, Vitis vinifera, and Vitis rupestris. It is used exclusively as a rootstock in viticulture and is currently the subject of scientific research on the adaptation of vineyards to climate change.
The rootstock possesses moderate vigor and productivity. The plant exhibits moderate resistance to chlorosis and is capable of growing in soils with an active lime content of less than 15%. The primary economic purpose of the crop is to provide resistance to phylloxera and soil-borne pathogens.
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.
№ 4074401
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
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
Vitis L. · Grapevine
INCONNU (FR)
Vitis L. · Grapevine
Nearby in the species list 110 RITCHER, 1103 P, 1103 Paulsen, 11803 Seibel, 12375 Seyve-Villard, 13 5 EVE JEREZ, 13-5 Evex, 140 Ru., 140 Ruggeri, 1447 Paulsen, 157-11 Couderc, 161-49 C, 161-49 Couderc, 1616 C, 1616 COURDERC, 1824-1/4, 1824-3/2, 1824-4/1, 1824-6/4, 1824-9/1