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Septoria spp. Infection among North American Northwest Coast provenances of Black Cottonwood (Populus trichocarpa) : a field study of natural infection in a Fraser Valley plantation

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dc.contributor.author Cimolai, Tomas
dc.date.accessioned 2011-07-20T20:19:18Z
dc.date.available 2011-07-20T20:19:18Z
dc.date.issued 2011-04-11
dc.identifier.uri http://hdl.handle.net/2429/36197
dc.description.abstract Given the recent finding of Septoria musiva among poplars in a Fraser Valley plantation and nearby vicinity in British Columbia, we undertook a field study of Septoria spp. presence among black cottonwood (P. trichocarpa) trees which were being assessed in a British Columbian provenance study. For seven such provenances, S. musiva and S. populicola were found on leaves in frequencies of 3.9-33.3% and 65.8-85.3% respectively. There were no significant differences in the isolation frequency between provenances for either fungus (p>0.10). The provenances were then pooled into two large groups to account for higher and lower latitudes; the lower latitude (South Coast/USA) cluster was found to bear both S. musiva and S. populicola in lesser frequencies (p=0.03 and p=0.01 respectively). S. musiva was isolated from tree canker, but the presence of canker-like lesions on stem and branches did not correlate with the presence of either fungus overall (p>0.10). Endemic S. musiva among poplars in this plantation raises several concerns about the local epidemiology. Further studies to confirm our findings are warranted as are studies that further the understanding of the S. musiva-P. trichocarpa pathosystem. en_US
dc.language.iso eng en_US
dc.relation.ispartofseries University of British Columbia, Forestry Undergraduate Essays/Theses, 2010 winter session, FRST 499 en_US
dc.subject Septoria musiva en_US
dc.subject Septoria populicola en_US
dc.subject Populus trichocarpa en_US
dc.subject British Columbia en_US
dc.title Septoria spp. Infection among North American Northwest Coast provenances of Black Cottonwood (Populus trichocarpa) : a field study of natural infection in a Fraser Valley plantation en_US
dc.type text en_US
dc.description.affiliation Forestry, Faculty of en_US
dc.description.reviewstatus Unreviewed en_US
dc.description.scholarlevel Undergraduate en_US


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