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dc.contributor.supervisorHolliday, N.J. (Entomology) Fernando, W.G.Dilantha (Plant Science)en
dc.contributor.authorBergen, Katherine Marie
dc.date.accessioned2008-09-10T13:31:13Z
dc.date.available2008-09-10T13:31:13Z
dc.date.issued2008-09-10T13:31:13Z
dc.identifier.urihttp://hdl.handle.net/1993/3061
dc.description.abstractTwo strains of plant growth-promoting rhizobacteria, Pseudomonas chlororaphis (PA23) and Bacillus amyloliquefaciens (BS6), can control some fungal diseases of canola through production of bacterial metabolites and through induced systemic resistance, which is initiated by the signalling molecule jasmonic acid. Direct application of jasmonic acid activates defence-related compounds and influences insect herbivory in canola. Field and laboratory studies investigated the effects of the two bacteria and of jasmonic acid on insects of canola. In the field there were no consistently significant effects of treatment on insects sampled by beat cloth or sweep net, level of flea beetle injury, canola yield or quality. In the laboratory, jasmonic acid significantly increased oviposition and decreased larval feeding in diamondback moth (Plutella xylostella) and slowed development and reduced reproduction in turnip aphid (Lipaphis erysimi). The effects of jasmonic acid on canola were systemic. Analysis of leaf tissue showed significant effects of treatment on defence-related compounds.en
dc.format.extent1116475 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectPGPRen
dc.subjectPlutella xylostellaen
dc.subjectLipaphis erysimien
dc.titleThe effects of bacterial and jasmonic acid treatments on insects of canolaen
dc.typeinfo:eu-repo/semantics/masterThesis
dc.typemaster thesisen_US
dc.degree.disciplineEntomologyen_US
dc.contributor.examiningcommitteeLamb, Robert J. (Agriculture and Agri-Foods Canada)en
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.noteOctober 2008en
local.subject.manitobayesen_US


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