Morphological identification of the ryegrass hybrid Lolium multiflorum x Lolium perenne and isolation of the pathogen Fusarium pseudograminearum in the Western Cape

dc.contributor.authorFerreira, Michael Ignatius
dc.contributor.authorReinhardt, Carl Frederick (Charlie)
dc.contributor.authorLamprecht, Sandra C.
dc.contributor.authorSinclair, Marna
dc.contributor.authorMacKenzie, Liezl
dc.contributor.authorVan Coller, Gert
dc.date.accessioned2015-03-23T07:52:13Z
dc.date.available2015-03-23T07:52:13Z
dc.date.issued2015-01
dc.description.abstractWeed resistance to herbicides present one of the greatest current economic challenges to agriculture. Herbicide resistant ryegrass (Lolium spp.) is a serious problem in Western Cape grain-producing areas. Morphological and pathogenic analyses were performed on ryegrass samples. Morphologically, 50% of specimens were classified as rigid ryegrass, 48% as a hybrid, namely L. multiflorum  L. perenne and 2% as perennial ryegrass. Fusarium pseudograminearum (cause of Fusarium crown rot) was isolated from six localities. Pathogencity tests confirmed that F. pseudograminearum isolates obtained from ryegrass and wheat are pathogenic on both crops, indicating that ryegrass can act as an alternative host and a source of inoculum of this important soilborne pathogen. Grass weed infestation can favour the disease, and grass weed control is therefore recommended as part of an integrated strategy to manage crown rot. Knowledge on morphological differences among ryegrass may be important to guide differential weed management of ryegrass. Smother cropping, as part of conservation farming, should receive more prominence to suppress herbicide-resistant ryegrass and simultaneously reduce the occurrence of crown rot.en_ZA
dc.description.embargo2016-01-31en_ZA
dc.description.librarianhb2015en_ZA
dc.description.urihttp://www.tandfonline.com/loi/tjps20en_ZA
dc.identifier.citationMichael I Ferreira, Carl F Reinhardt, Sandra C Lamprecht, Marna Sinclair, Liezl MacKenzie & Gert van Coller (2015) Morphological identification of the ryegrass hybrid Lolium multiflorum × Lolium perenne and isolation of the pathogen Fusarium pseudograminearum in the Western Cape, South African Journal of Plant and Soil, 32:1, 9-15, DOI: 10.1080/02571862.2014.994140en_ZA
dc.identifier.issn0257-1862 (print)
dc.identifier.issn2167-034X (online)
dc.identifier.other10.1080/02571862.2014.994140
dc.identifier.urihttp://hdl.handle.net/2263/44102
dc.language.isoenen_ZA
dc.publisherTaylor and Francisen_ZA
dc.rights© Southern African Plant and Soil Sciences Committee and co-published by Taylor & Francis and NISC (Pty) Ltd. This is an electronic version of an article published in South African Journal of Plant and Soil, vol. 32, no.1, pp. 9-15, 2015. doi : 10.1080/02571862.2014.994140. South African Journal of Plant and Soil is available online at : http://www.tandfonline.comloi/reso20en_ZA
dc.subjectIntegrated weed managementen_ZA
dc.subjectMorphological and pathogenic analysesen_ZA
dc.subjectSmother cropsen_ZA
dc.titleMorphological identification of the ryegrass hybrid Lolium multiflorum x Lolium perenne and isolation of the pathogen Fusarium pseudograminearum in the Western Capeen_ZA
dc.typePostprint Articleen_ZA

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