Show simple item record

dc.contributor.authorSun, P.
dc.contributor.authorFitt, Bruce D.L.
dc.contributor.authorSteed, J.M.
dc.contributor.authorUnderwood, C.T.
dc.contributor.authorWest, Jon S.
dc.identifier.citationSun , P , Fitt , B D L , Steed , J M , Underwood , C T & West , J S 2001 , ' Factors affecting development of phoma canker (Leptosphaeria maculans) on stems of winter oilseed rape (Brassica napus) in southern England ' , Annals of Applied Biology , vol. 139 , no. 2 , pp. 227-242 .
dc.identifier.otherPURE: 1402995
dc.identifier.otherPURE UUID: 39ce0e83-ba6b-4d03-9fea-ea07d5d47886
dc.identifier.otherBibtex: urn:2619b35da95a8715b81eabdc5fc37e6a
dc.identifier.otherScopus: 0034779327
dc.description.abstractIn winter oilseed rape experiments at Rothamsted in 1997/98 (cvs Lipton and Capitol), 1998/99 (cv. Apex) and 1999/2000 (cvs Apex, Lipton and Capitol), development of crown canker and phoma stem lesions in spring was related to development of phoma leaf spot in the previous autumn/winter. There were differences in thermal time (degree-days) from the first appearance of phoma leaf spot (autumn) to the first appearance of crown canker (spring) between cultivars (cvs Lipton and Capitol, 12201240; cv. Apex, 1120-1140 degree-days) but not between growing seasons. In 1998/99 and 1999/2000, fungicide (November) treatment delayed the start of crown canker development in the spring but did not affect the rate of increase in severity. In 1997/98, fungicide treatments did not delay the appearance of crown canker but decreased the rate of increase in crown canker severity. In all three seasons, fungicide treatments generally decreased the proportions of plants at harvest with crown canker severity scores 3 or 4 and increased the proportions with scores 0 or 1. There were differences between seasons in the distributions of crown canker severity scores at harvest. The severity of both crown canker and phoma stem lesions increased linearly with accumulated degree-days in plots with or without fungicide treatment in 1997/98 (cv. Lipton), 1998/99 (cv. Apex) and 1999/2000 (cv. Apex). Regressions showed that severity of crown canker at harvest in July was related to severity in the spring in 1997/98 (early June, cv. Lipton), 1998/99 and 1999/2000 (April, cv. Apex).en
dc.relation.ispartofAnnals of Applied Biology
dc.subjectphoma leaf spot;
dc.subjectstern canker
dc.subjectwinter oilseed rape
dc.titleFactors affecting development of phoma canker (Leptosphaeria maculans) on stems of winter oilseed rape (Brassica napus) in southern Englanden
dc.contributor.institutionDepartment of Human and Environmental Sciences
dc.contributor.institutionGeography, Environment and Agriculture
dc.contributor.institutionCrop and Environmental Protection
dc.contributor.institutionSchool of Life and Medical Sciences
dc.contributor.institutionHealth & Human Sciences Research Institute
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record