Show simple item record F. X. en_US J. en_US B. en_US P. en_US B. en_US V. en_US E. en_US F. en_US U. en_US S. en_US H. en_US D. en_US B. en_US H. en_US H. en_US C. en_US W. en_US U. K. en_US L. en_US S. en_US M. C. en_US F. en_US P. W. en_US E. en_US L. en_US B. en_US 2011-06-09T10:49:44Z 2011-06-09T10:49:44Z 2010-06-08 en_US
dc.identifier en_US
dc.identifier.citation Schubiger , F X , Baert , J , Bayle , B , Bourdon , P , Cagas , B , Cernoch , V , Czembor , E , Eickmeyer , F , Feuerstein , U , Hartmann , S , Jakesova , H , Johnston , D , Krautzer , B , Leenheer , H , Lellbach , H , Persson , C , Pietraszek , W , Posselt , U K , Russi , L , Schulze , S , Tardin , M C , VanHee , F , Wilkins , P W , Willner , E , Wolters , L & Boller , B 2010 , ' Susceptibility of European cultivars of Italian and perennial ryegrass to crown and stem rust ' Euphytica , vol 176 , no. 2 , pp. 167-181 . , 10.1007/s10681-010-0200-5 en_US
dc.identifier.other PURE: 165178 en_US
dc.identifier.other dspace: 2160/7024 en_US
dc.description.abstract A set of 15 Italian (Lolium multiflorum), three hybrid (L. boucheanum) and 33 perennial ryegrass (L. perenne) cultivars were evaluated for their rust susceptibility in the field. The cultivars were grown in 2001, 2004 and 2007 at 29, 32 and 27 European sites, respectively. Rust incidence was scored during different growth cycles using a scale from one (no rust) to nine (susceptible). Crown rust (Puccinia coronata f. sp. lolii) was the most frequently observed rust species on Italian, hybrid and perennial ryegrass during all three experimental years. There was a highly significant difference in mean crown rust scores among Italian and perennial ryegrass cultivars, respectively, in each of the 3 years. The ranking of the cultivars was very consistent across the different sites within each year (with some exceptions), despite a significant interaction of cultivar response with sites. Moreover, the rank order correlations of mean cultivar rust scores were highly significant (r > 0.9) between the years. Stem rust (P. graminis f. sp. graminicola) occurred almost exclusively on perennial ryegrass. The cultivars showed significant variation in stem rust susceptibility. Rank order correlations of mean cultivar stem rust scores were mostly significant between sites within each year and highly significant between the years. The ranking of perennial ryegrass cultivars was different depending on whether crown or stem rust was scored. However, the rank order correlation between the mean disease scores of the cultivars for the two pathogens was low but still significant. At a particular site the assessment of crown or stem rust was in most cases very consistent over the period of experimentation. Therefore there was no evidence that rust resistance of an individual cultivar was overcome by the rust pathogen at a particular site over the 7 years of experimentation. en_US
dc.format.extent 15 en_US
dc.relation.ispartof Euphytica en_US
dc.subject Lolium multiflorum en_US
dc.subject lolium perenne en_US
dc.subject puccinia coronata en_US
dc.subject puccinnia graminis en_US
dc.subject resistance en_US
dc.subject rust en_US
dc.subject ryegrass en_US
dc.title Susceptibility of European cultivars of Italian and perennial ryegrass to crown and stem rust en_US
dc.contributor.pbl Aberystwyth University en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US

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