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 Southern Horticultural Research Unit: Poplarville, MS
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Title:   Author  item
                                            Smith, Barbaraitem
                                            HOKANSON, S - UNIV OF MINNESOTAitem
                                            Lewers, Kimberlyitem
                                            HANCOCK, J - MICHIGAN STATE UNIVitem
                                            Maas, Johnitem
                                            SERCE, S - MICHIGAN STATE UNIV
  Submitted to: Phytopathology
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 11/13/2003
                                    Publication  Date: 12/1/2003
                                    Citation: Smith, B.J., Hokanson, S.C., Lewers, K.S., Hancock, J.F., Maas, J.L., Serce, S. 2003. Evaluation of native strawberry germplasm for resistence to anthracnose. Phytopathology. 93:S79-S80Interpretive Summary:
                                Technical Abstract: Anthracnose diseases of strawberry are caused by several Colletotrichum species.  A subset ("supercore") of the Fragaria core collection maintained at the USDA National Clonal Repository, Corvallis, OR, contains an elite group of 15 native F. virginiana clones and 12 F. chiloensis clones of widely differing genotypes. We evaluated this supercore collection for anthracnose resistance by inoculating plants with conidial suspensions of isolates of C. acutatum, C. fragariae and C. gloeosporioides.  No Fragaria sub-grouping was more resistant than any other.  Individual accessions within groups were identified as sources of resistance.  The virulence of Colletotrichum isolates varied depending on the Fragaria accession challenged. Apparent resistance to anthracnose in accessions from different geographic origins, Peru, British Columbia, California, Montana and Mississippi, and in two Fragaria species, suggests there is a wealth of genetic resources in native octoploid germplasm that can be used to develop resistant cultivars.


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