1. Screening European elms for resistance to Ophiostoma novo-ulmi
- Author
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Solla, A., Bohnens, J., Collin, E., Diamandis, S., Franke, A., Luis Gil, Buron, M., Santini, A., Mittempergher, L., Pinon, J., Broeck, Av, UNIVERSIDAD DE EXTREMADURA DEPARTAMENTO DE BIOLOGIA Y PRODUCCION DE LOS VEGETALES PLASENCIA ESP, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), HESSEN FORSTEINRICHTUNG INFORMATION VERSUCHSWESEN HANN MUNDEN DEU, Écosystèmes forestiers et paysages (UR EFNO), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), NATIONAL AGRICULTURAL RESEARCH FOUNDATION FOREST RESEARCH INSTITUTE VASSILIKA THESSALONIKI GRC, FORSTLICHE VERSUCHS UND FORSCHUNGSANSTALT FREIBURG DEU, UNIVERSIDAD POLITECNICA DE MADRID ETSI DE MONTES MADRID ESP, ISTITUTO PER LA PROTEZIONE DELLE PIANTE CNR SESTO FIORENTINO ITA, Institut National de la Recherche Agronomique (INRA), and INSTITUT FOR FORESTRY AND GAME MANAGEMENT GERAARDSBERGEN BEL
- Subjects
environmental management ,OPHIOSTOMA NOVO ULMI ,EUROPE ,Ulmus ,[SDE]Environmental Sciences ,plant breeding ,forest management ,Ophiostoma ulmi - Abstract
Resistance breeding of the native elms against Dutch elm disease, caused by the fungus Ophiostoma novo-ulmi Brasier, is a major objective in Europe for the conservation of this tree species. More than 2,500 cuttings of 324 elm clones (Ulmus minor Miller, U. glabra Huds., U. laevis Pall., U. pumila L., U. minor x U. glabra, and U. minor x U. pumila) from eight European countries, planted in several randomized two-block designed plots were inoculated with various O. novo-ulmi strains. Crown wilting and dieback were recorded during the first year after inoculation. The wilting of the control trees varied among the plots, making the results difficult to compare, but analysis of variance (ANOVA) within each plot showed significant differences in disease severity among the clones tested, allowing study of the variation of the response among elm taxa. Results showed that 19 European inoculated clones recovered from O. novo-ulmi attack, giving hope for the reestablishment of native elms in countryside hedges and forests.
- Published
- 2005