Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding
Crop growth and damage parameters (plant growth and yield, root damage and nematode population densities), believed to be associated with resistance of Musa genotypes to nematodes under field conditions, were evaluated in a field trial of 24 Musa genotypes inoculated at planting with a combination o...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2010
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/89373 |
| _version_ | 1855543038619680768 |
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| author | Hartman, J.B. Vuylsteke, D.R. Speijer, P.R. Ssango, F. Coyne, Danny L. Waele, D. de |
| author_browse | Coyne, Danny L. Hartman, J.B. Speijer, P.R. Ssango, F. Vuylsteke, D.R. Waele, D. de |
| author_facet | Hartman, J.B. Vuylsteke, D.R. Speijer, P.R. Ssango, F. Coyne, Danny L. Waele, D. de |
| author_sort | Hartman, J.B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Crop growth and damage parameters (plant growth and yield, root damage and nematode population densities), believed to be associated with resistance of Musa genotypes to nematodes under field conditions, were evaluated in a field trial of 24 Musa genotypes inoculated at planting with a combination of Radopholus similis and Helicotylenchus multicinctus with the objective to identify parameters with strong association with nematode resistance and high heritability. Correlation and path analysis of the association between plant growth, yield, root damage and nematode population densities showed a strong negative association between percentage dead roots, percentage root necrosis, R. similis and H. multicinctus population densities and yield. The strongest negative association was observed between percentage dead roots and yield. Broad-sense genotype heritability estimates demonstrated that heritability estimates for percentage dead roots, number of large lesions and nematode population density were most affected by inoculation with nematodes. These results indicate therefore that effective selection for nematode resistance under field conditions could be obtained by using an index, that includes percentage dead roots, the number of large lesions, and nematode population density. |
| format | Journal Article |
| id | CGSpace89373 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| record_format | dspace |
| spelling | CGSpace893732023-06-13T06:38:51Z Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding Hartman, J.B. Vuylsteke, D.R. Speijer, P.R. Ssango, F. Coyne, Danny L. Waele, D. de bananas fields path analysis plant nematodes plantains yields Crop growth and damage parameters (plant growth and yield, root damage and nematode population densities), believed to be associated with resistance of Musa genotypes to nematodes under field conditions, were evaluated in a field trial of 24 Musa genotypes inoculated at planting with a combination of Radopholus similis and Helicotylenchus multicinctus with the objective to identify parameters with strong association with nematode resistance and high heritability. Correlation and path analysis of the association between plant growth, yield, root damage and nematode population densities showed a strong negative association between percentage dead roots, percentage root necrosis, R. similis and H. multicinctus population densities and yield. The strongest negative association was observed between percentage dead roots and yield. Broad-sense genotype heritability estimates demonstrated that heritability estimates for percentage dead roots, number of large lesions and nematode population density were most affected by inoculation with nematodes. These results indicate therefore that effective selection for nematode resistance under field conditions could be obtained by using an index, that includes percentage dead roots, the number of large lesions, and nematode population density. 2010 2017-11-14T08:07:50Z 2017-11-14T08:07:50Z Journal Article https://hdl.handle.net/10568/89373 en Limited Access Hartman, J.B., Vuylsteke, D., Speijer, P.R., Ssango, F., Coyne, D.L. & De Waele, D. (2010). Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding. Euphytica, 172(1), 139-148. |
| spellingShingle | bananas fields path analysis plant nematodes plantains yields Hartman, J.B. Vuylsteke, D.R. Speijer, P.R. Ssango, F. Coyne, Danny L. Waele, D. de Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title | Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title_full | Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title_fullStr | Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title_full_unstemmed | Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title_short | Measurement of the field response of Musa genotypes to Radopholus similis and Helicotylenchus multicinctus and the implications for nematode resistance breeding |
| title_sort | measurement of the field response of musa genotypes to radopholus similis and helicotylenchus multicinctus and the implications for nematode resistance breeding |
| topic | bananas fields path analysis plant nematodes plantains yields |
| url | https://hdl.handle.net/10568/89373 |
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