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Nematode-Resistant Grape Rootstocks

详细技术说明: Currently-available commercial grape rootstocks have a number of serious shortcomings, including narrowness of soil pest resistance, excessive vigor except in the sandiest of soils, and a lack of long-term resistance to a specific soil pest of considerable importance, namely root knot nematodes. A University of California scientist has developed two new grape rootstocks (designated RS-3 and RS-9) that feature broad-spectrum resistance to nematodes, including aggressive root knot nematodes. RS-3 has a moderate vigor level that is most suitable for coarse to fine sandy loam soils, and displays resistance to all known aggressive populations of root knot nematodes, to Xiphinema index, the citrus nematode (Tylenchulus semipenetrans) and to root lesion (Pratylenchus vulnus). RS-9 has a lower vigor, which will probably be better suited to coastal valleys. RS-9 also exhibits good resistance to root knot nematodes, Xiphinema index, and P. vulnus, and should be considered in cooler regions where ectoparasitic nematodes predominate. Overall, RS-3 and RS-9 offer broader nematode resistance than grape rootstocks such as VR 039-16, Freedom, Harmony, Ramsey, or Teleki 5C(6), coupled with an attenuation of vigor that is desirable in many kinds of soils.

附加资料: Patent Number: USPP16291P3
Application Number: US2003656532A
Inventor: McKenry, Michael
Priority Date: 4 Sep 2003
Priority Number: USPP16291P3
Application Date: 4 Sep 2003
Publication Date: 28 Feb 2006
IPC Current: A01H000500 | A01H000508
US Class: PLT205
Assignee Applicant: The Regents of the University of California
Title: Grape plant named 'RS-3'
Usefulness: Grape plant named 'RS-3'

其他: Tech ID/UC Case
10240/2002-012-0

Related Cases
2002-012-0, 2002-013-1

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