ISHS Acta Horticulturae 459: International Symposium Brassica 97, Xth Crucifer Genetics Workshop
EVALUATION OF RESISTANCE TO PLASMODIOPHORA BRASSICAE, ALTERNARIA AND PHOMA IN BRASSICACEAE |
| Authors: | P. Scholze, K. Hammer |
| Keywords: | Screening technique, cole, wild relatives, hybridization, breeding |
| Abstract:
A total of 900 accessions of Brassicaceae including culture forms of Brassica oleracea, B. rapa, Raphanus sativus, Sinapis alba, wild relatives and other species were tested for resistance to clubroot (Plasmodiophora brassicae; isolations ECD 16/07/12 or ECD 16/14/31), Alternaria leaf blight, and Phoma, causing leaf spots. Single plants resistant to clubroot could be found in most forms of B. oleracea, turnips, swedes and, especially, Raphanus sativus, of which more than half of the accessions reacted without symptoms or highly resistant. Quantitatively expressed resistance to Alternaria and Phoma has been found in some introductions of savoy, kale, turnip, turnip rape, and white mustard. Wild relatives, ornamentals and other species showed a broad variability of differential as well as quantitative resistance reactions including multiple resistance in several combinations against two or three pathogens used in the tests. Some of the accessions are utilized for transferring resistance into white cabbage via somatic hybridization in order to produce basic material for the breeders. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
