Effect of cultivar resistance and rotation crops on clubroot (Plasmodiophora brassicae) in canola and brassica vegetables

dc.contributor.advisorMcDonald, Mary Ruth
dc.contributor.advisorGossen, Bruce
dc.contributor.authorDrury, Sarah C.
dc.date.accessioned2021-05-17T19:08:24Z
dc.date.available2021-05-17T19:08:24Z
dc.date.copyright2021-05
dc.date.created2021-04-28
dc.date.issued2021
dc.degree.departmentDepartment of Plant Agricultureen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmePlant Agricultureen_US
dc.description.abstractClubroot, caused by Plasmodiophora brassicae Woronin, can dramatically reduce yields of brassica crops. Once present in a field, eradication is difficult, but resistant cultivars can provide effective management. The reactions of selected canola and brassica vegetable cultivars to pathotypes 2 and 6, the prevalent pathotypes in Ontario, were assessed. The canola cultivars marketed as resistant were resistant to both pathotypes. The vegetable cultivars marketed as resistant were resistant to both pathotypes except for putative resistant cultivars of cabbage and broccoli which were resistant to pathotype 6 but susceptible to pathotype 2. The effect of selected field and cover crops on spore concentrations in soil and the combined effect of planting a cereal crop and liming and were also assessed. Wheat reduced spores compared to a no-plant control. Spore concentrations decreased as the lime rate increased and there was no interaction between wheat and lime. Therefore, growers can use both strategies.en_US
dc.identifier.citationDrury, S. C., Gossen, B. D., and McDonald, M. R. 2021. Clubroot resistance in canola and brassica vegetable cultivars in Ontario, Canada. Canadian Journal of Plant Science doi: 10.1139/CJPS-2020-0273
dc.identifier.urihttps://hdl.handle.net/10214/25746
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectClubrooten_US
dc.subjectPlasmodiophora brassicaeen_US
dc.subjectCanolaen_US
dc.subjectBrassica napusen_US
dc.subjectLimingen_US
dc.subjectRotation cropsen_US
dc.subjectCultivar resistanceen_US
dc.subjectBrassica vegetablesen_US
dc.titleEffect of cultivar resistance and rotation crops on clubroot (Plasmodiophora brassicae) in canola and brassica vegetablesen_US
dc.typeThesisen_US

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