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Screening Musa germplasm for resistance to burrowing nematode populations from Uganda |
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| Authors: | Carine Dochez Jolly Dusabe Abdou Tenkouano Rodomiro Ortiz Jim Whyte Dirk De Waele |
| Institution: | 1. International Institute of Tropical Agriculture, P.O. Box 7878, Kampala, Uganda 3. Network for Education and Support in Immunisation, University of Antwerp, Universiteitsplein 1, 2610, Antwerpen, Belgium 4. Department of Plant Breeding and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 101, 230 53, Alnarp, Sweden 2. Laboratory of Tropical Crop Improvement, Department of Biosystems, Faculty of Bioscience Engineering, Catholic University of Leuven, Kasteelpark Arenberg 13, 3001, Leuven, Belgium |
| Abstract: | Nematode pathogenicity experiments on Musa host plants were carried out in pot trials. Both the final nematode population densities and percentages root necrosis on different host plants were higher for the Radopholus similis population from Mbarara than for the populations from Namulonge, Ikulwe and Mukono (Uganda). The R. similis population from Mbarara managed to break the resistance of the diploid banana Pisang Jari Buaya, a known worldwide source of resistance to R. similis. The diploid banana hybrid TMB2× 9128-3 and the triploid dessert banana Yangambi km5 showed resistance against the four R. similis populations. These results indicate that differences in pathogenicity among different R. similis populations exist and should be taken into consideration for plantain and banana germplasm enhancement. |
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