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dc.contributor.authorToscano-Underwood, C.
dc.contributor.authorWest, Jon S.
dc.contributor.authorFitt, Bruce D.L.
dc.contributor.authorTodd, A.D.
dc.contributor.authorJedryczka, M.
dc.date.accessioned2013-06-18T10:45:43Z
dc.date.available2013-06-18T10:45:43Z
dc.date.issued2001-02
dc.identifier.citationToscano-Underwood , C , West , J S , Fitt , B D L , Todd , A D & Jedryczka , M 2001 , ' Development of phoma lesions on oilseed rape leaves inoculated with ascospores of A-group or B-group Leptosphaeria maculans (stem canker) at different temperatures and wetness durations ' , Plant Pathology , vol. 50 , no. 1 , pp. 28-41 . https://doi.org/10.1046/j.1365-3059.2001.00526.x
dc.identifier.issn1365-3059
dc.identifier.otherPURE: 1399119
dc.identifier.otherPURE UUID: 1a7c13cb-9f78-4930-b22f-69c93d8041f0
dc.identifier.otherBibtex: urn:7f2bfb325047b222d2d653b0c3ac8fca
dc.identifier.otherScopus: 0035114324
dc.identifier.urihttp://hdl.handle.net/2299/10819
dc.description.abstractIn controlled-environment experiments, ascospores of both A-group and B-group Leptosphaeria maculans were able to infect leaves of oilseed rape and produce phoma leaf spot lesions at temperatures from 5 to 20 degreesC and wetness durations from 8 to 72 h after inoculation. Lesions formed on leaves inoculated with B-group ascospores had few pycnidia and were darker, smaller and less noticable than the larger, pale grey lesions with many pycnidia produced by A-group ascospores. Lesions formed by A-group or B-group L. maculans on naturally infected winter oilseed rape experimental crops were similar to lesions produced by the two groups on inoculated plants. The greatest numbers of lesions were produced with a leaf wetness duration of 48 h and at temperatures of 15-20 degreesC for both A-group and B-group ascospores. As leaf wetness duration and temperature decreased below the optimal values, the number of lesions decreased. The incubation period, estimated as the time from inoculation to the appearance of the first lesions (t(1)), or the time to the appearance of 50% of the lesions (t(50)), of B-group was often shorter than that of A-group L. maculans. As temperature decreased below 20 degreesC, the length of the incubation period of both A-group and B-group L. maculans increased.en
dc.format.extent14
dc.language.isoeng
dc.relation.ispartofPlant Pathology
dc.subjectascospores
dc.subjectincubation period
dc.subjectinfection conditions
dc.subjectLeptosphaeria maculans
dc.subjectphoma leaf spot
dc.subjectstem canker
dc.subjectwinter oilseed rape
dc.titleDevelopment of phoma lesions on oilseed rape leaves inoculated with ascospores of A-group or B-group Leptosphaeria maculans (stem canker) at different temperatures and wetness durationsen
dc.contributor.institutionDepartment of Human and Environmental Sciences
dc.contributor.institutionHealth & Human Sciences Research Institute
dc.contributor.institutionGeography, Environment and Agriculture
dc.contributor.institutionCrop Protection and Climate Change
dc.contributor.institutionSchool of Life and Medical Sciences
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1046/j.1365-3059.2001.00526.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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