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N. van Poeteren 《European journal of plant pathology / European Foundation for Plant Pathology》1933,39(10):276-278
Voordracht gehouden tijdens de Landbouwweek te Wageningen 3 t/m 7 5uli 1933 相似文献
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M. A. A. Schipper H. M. Heybroek 《European journal of plant pathology / European Foundation for Plant Pathology》1957,63(4):192-194
Summary Some types of elm hybrids resistent to the Dutch elm disease turned out to be susceptible toNectria cinnabarina
(Tode) Fr. This fungus may behave as a parasite, killing branches. Virulent and non-virulent strains are known. A method is described for cultivatingNectria-strains in vitro on living desinfected branches ofAcer and ofUlmus. Three weeks after inoculation with a virulent strain the branches were killed. They were covered all over by a thick layer of mycelium. The mycelium of non-virulent strains could not kill the branches. It developed only sparsely. By this method it will be possible to select the most virulent strains out of a collection of isolates in order to use them for testing elm hybrids on their resistence toNectria cinnabarina. 相似文献
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S. J. Wellensiek 《European journal of plant pathology / European Foundation for Plant Pathology》1925,31(4):91-101
Instituut voor Phytopathologie, Laboratorium voor Mycologie en Aardappelonderzoek. 相似文献
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S. H. Justesen 《European journal of plant pathology / European Foundation for Plant Pathology》1931,37(1):1-14
(with a summary in English)
Instituut voor Phytopathologie Laboratorium voor Mycologie en Aardappelonderzoek 相似文献
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