| Titre : | Screening European elms for resistance to Ophiostoma novo-ulmi |
| Auteurs : | A. Solla ; UNIVERSIDAD DE EXTREMADURA DEPARTAMENTO DE BIOLOGIA Y PRODUCCION DE LOS VEGETALES PLASENCIA ESP ; J. Bohnens ; E. Collin ; FORSTEINRICHTUNG INFORMATION VERSUCHSWESEN HANN MUNDEN DEU ; CEMAGREF NOGENT SUR VERNISSON EFNO ; S. Diamandis ; NATIONAL AGRICULTURAL RESEARCH FOUNDATION FOREST RESEARCH INSTITUTE VASSILIKA THESSALONIKI GRC ; A. Franke ; FORSTLICHE VERSUCHS UND FORSCHUNGSANSTALT FREIBURG DEU ; L. Gil ; UNIVERSIDAD POLITECNICA DE MADRID ETSI DE MONTES MADRID ESP ; M. Buron ; A. Santini ; UNIVERSIDAD POLITECNICA DE MADRID ETSI DE MONTES MADRID ESP ; L. Mittempergher ; ISTITUTO PER LA PROTEZIONE DELLE PIANTE CNR SESTO FIORENTINO ITA ; Jean Pinon ; ISTITUTO PER LA PROTEZIONE DELLE PIANTE CNR SESTO FIORENTINO ITA ; INRA CHAMPENOUX ; A. Vanden Broeck ; INSTITUUT VOOR BOSBOUW EN WILDBEHEER GERAARDSBERGEN BEL |
| Type de document : | article/chapitre/communication |
| Année de publication : | 2005 |
| Format : | p. 134-141 |
| Note générale : | Diffusion tous publics |
| Langues: | = Anglais |
| Mots-clés: | EUROPE ; ULMUS ; RESISTANCE AUX MALADIES ; MALADIE CRYPTOGAMIQUE ; AMELIORATION GENETIQUE ; EXPERIMENTATION ; DISPOSITIF EXPERIMENTAL |
| Résumé : | 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 2 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 ANOVAs within each plot showed significant differences in disease severity among the clones tested, allowing to study 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. |
| Source : | Forest science, vol. 51 n° 2 |
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