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Grape Variety: RS-9

Variety Name RS-9
Common Synonyms McKenry RS-9
All Synonyms McKenry RS-9
Countries of Origin USA
Species Interspecific hybrid (champinii; riparia; rupestris)
Breeder David Ramming, Michael McKenry
Institution USDA-ARS (Fresno, CA) & UC Riverside
Year Released 2003
Status of Ownership Patent held by University of California
Pedigree Ramsey x Schwarzmann
References
Uses Rootstock
Comments This selection features broad-spectrum resistance to nematodes. RS-9 has a lower vigor that is most likely better suited to coastal valleys. It exhibits good resistance to root knot nematodes, Xiphenema index, and root lesion. It may be considered in cooler regions where ectoparasitic nematodes predominate. More details can be found in Foundation Plant Services' 2001 Grape Program Newsletter.

RS-9 PhotosClick photo to enlarge

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RS-9 Selections

Information about:          Selection Numbers     |     Registration Status
  RS-9 01 (proprietary)
Registration Status Provisional Provisional Status is an important term used in the regulations of the California Department of Food & Agriculture's Grapevine Registration & Certification Program. Grapevine selections with Provisional Status have successfully completed all required disease testing, but have not been confirmed as true to variety. Propagation material from Provisional selections qualifies for release subject to the understanding on the part of the customer that the identity has yet to be confirmed.
Source Mike McKenry, Kearney Agricultural Center, California
Treatments None
Proprietary Proprietary- cannot be distributed without written permission from owner.
Patented / Proprietary Proprietary