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ARS Home Pacific West Area Davis, California Crops Pathology and Genetics Research Research Publications at this Location





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Title:   Author  item
                                            Browne, Gregitem
                                            HACKETT, W - UCDAVIS PLANT SCIENCESitem
                                            KRUEGER, W - UCCE POMOLOGY FARM ADVSRitem
                                            CONNELL, J - UCCE POMOLOGY FARM ADVSRitem
                                            OLSEN, B - UCCE POMOLOGY FARM ADVSRitem
                                            LAMPINEN, B - UCDAVIS POMOLOGY DEPTitem
                                            MCLAUGHLIN, S - USDA, ARS, CPGRUitem
                                            LEE, R - USDA, ARS, CPGRUitem
                                            POTTER, D - UCDAVIS POMOLOGY DEPTitem
                                            GRANT, J - UCCE POMOLOGY FARM ADVSRitem
                                            MCGRANAHAN, G - UC DAVIS POMOLOGY DEPTitem
                                            LESLIE, C - UC DAVIS POMOLOGY DEPTitem
                                            BUJAZHA, D - UC DAVIS
  Submitted to: Walnut Research Conference
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 12/1/2005
                                    Publication  Date: 1/1/2005
                                    Citation: Browne, G.T., Hackett, W., Krueger, W., Connell, J., Olsen, B., Lampinen, B., Mclaughlin, S., Lee, R., Potter, D., Grant, J., Mcgranahan, G., Leslie, C., Bujazha, D. 2005. Determining phytophthora resistance in elite paradox clones and specific etiology of a paradox crowne and root rot. Walnut Research Conference.Interpretive Summary:
                                Technical Abstract: There has been continued interest in comprehensive evaluation of Paradox hybrids for resistance to Phytophthora spp. and other desirable traits.  Paradox has proven more resistant than Northern California black or English seedling rootstocks to most Phythophthora spp.  Although Chinese wingnut is the only walnut family relative known to tolerate P. cinnamomi, it is not graft compatible with all English walnut cultivars and has other potential limitations (i.e., suckering, unknown yield efficiency).  Paradox hybrids available from commercial nurseries are diverse, involving crosses between J. regia and one or more species of black walnut and the results of greenhouse experiments suggested that the diversity among Paradox hybrids may include important variation in resistance to P. citricola.


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