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ARS Home Northeast Area Geneva, New York Plant Genetic Resources Unit (PGRU) Research Publications at this Location





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Title:   Author  item
                                            RUSSO, NICOLE - CORNELL UNIVERSITYitem
                                            ALDWINCKLE, HERBERT - CORNELL UNIVERSITYitem
                                            ROBINSON, TERENCE - CORNELL UNIVERSITYitem
                                            Fazio, Gennaro
  Submitted to: Acta Horticulturae
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 10/2/2007
                                    Publication  Date: 10/2/2008
                                    Citation: Russo, N., Aldwinckle, H., Robinson, T., Fazio, G. 2008. Budagovsky 9 rootstock: uncovering a novel resistance to fire blight. Acta Hort. 793:321-324.Interpretive Summary:
                                Technical Abstract: Budagovsky 9 (B.9) apple rootstock, displayed a high level of susceptibility (similar to M.9 rootstock) to fire blight bacteria (Erwinia amylovora) when leaves of non-grafted B.9 plants were inoculated. However, when older B.9 rootstock tissue was inoculated directly with E. amylovora, rootstock tissue was resistant in both grafted and non-grafted plants. Comparisons of four scion cultivar ('Gala', 'Red Yorking', 'Jonagold' and 'Gingergold') and two sources of B.9 rootstock (Oregon, USA and Netherlands) showed no influence of scion cultivar or source of B.9 rootstock on symptom development. Further experiments investigating tissue age and its effect on resistance suggest B.9 asserts a form of persistent age related resistance in response to E. amylovora.


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