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| Speiser, B.; Tamm, L.; Amsler, T.; Lambion, J.; Bertrand, C.; Hermansen, A.; Ruissen, M. A.; Haaland, P.; Zarb, J.; Santos, J.; Shotton, P.; Wilcockson, S.; Juntharathep, P.; Ghorbani, R.; Leifert, C.. |
| Late blight of potatoes, caused by Phytophthora infestans, is particularly difficult to prevent or control in organic agriculture. In this study, the host resistance of selected varieties to foliar and tuber blight and their yield under organic growing conditions were assessed in trials carried out in four countries (Switzerland, France, England and Norway) in 2001 and 2002. The objective was to identify new, more resistant varieties which might replace some of the more susceptible varieties which are currently grown in organic agriculture. In each country, five test varieties were compared with two reference varieties, identical for all sites, and with two locally popular varieties. In addition, the effect of copper fungicides was assessed for all... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/8358/1/Speiser_etal_2006_late_blight.pdf |
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| Carlucci, A.; Raimondo, M.L.; Santos, J.; Phillips, A.J.L.. |
| Plectosphaerella cucumerina, most frequently encountered in its Plectosporium state, is well known as a pathogen of several plant species causing fruit, root and collar rot, and collapse. It is considered to pose a serious threat to melon (Cucumis melo) production in Italy. In the present study, an intensive sampling of diseased cucurbits as well as tomato and bell pepper was done and the fungal pathogens present on them were isolated. Phylogenetic relationships of the isolates were determined through a study of ribosomal RNA gene sequences (ITS cluster and D1/D2 domain of the 28S rRNA gene). Combining morphological, culture and molecular data, six species were distinguished. One of these (Pa. cucumerina) is already known. Four new species are described as... |
| Tipo: Article / Letter to the editor |
Palavras-chave: D1/D2; ITS; LSU; Phylogeny; Plectosporium; RDNA; Systematics; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531914 |
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