Response of East African highland bananas and hybrids to Radopholus similis
The burrowing nematode, Radopholus similis, is a serious threat to sustainable banana production worldwide. A promising way of controlling nematodes is through the development and deployment of resistant cultivars. This usually involves crossing triploid cultivars with fertile diploids to produce te...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/91797 |
| _version_ | 1855521760854671360 |
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| author | Dochez, C. Whyte, J. Tenkouano, A. Ortíz, R. Waele, D. de |
| author_browse | Dochez, C. Ortíz, R. Tenkouano, A. Waele, D. de Whyte, J. |
| author_facet | Dochez, C. Whyte, J. Tenkouano, A. Ortíz, R. Waele, D. de |
| author_sort | Dochez, C. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The burrowing nematode, Radopholus similis, is a serious threat to sustainable banana production worldwide. A promising way of controlling nematodes is through the development and deployment of resistant cultivars. This usually involves crossing triploid cultivars with fertile diploids to produce tetraploids that generally display greater male and female fertility. Selected tetraploids are then crossed with improved diploids to produce sterile secondary triploids. This study evaluates the host response of the most commonly grown East African highland bananas in Uganda. Also, the host responses of diploid hybrids and East African highland banana derived hybrids, including tetraploids and secondary triploids, were evaluated. The individual root inoculation method was used for screening the Musa accessions for resistance to R. similis. The final nematode population of each accession was compared with the final nematode population of a susceptible reference cultivar, Valery, and with the final nematode population of a resistant reference cultivar, Yangambi km5. Results show that, except for cv. Muvubo, East African highland bananas were as susceptible to R. similis as cv. Valery. Four out of 13 tetraploid hybrids were identified with resistance to R. similis, as well as 13 out of 19 diploids and five out of 18 secondary triploids. |
| format | Journal Article |
| id | CGSpace91797 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2005 |
| publishDateRange | 2005 |
| publishDateSort | 2005 |
| record_format | dspace |
| spelling | CGSpace917972024-03-06T10:16:43Z Response of East African highland bananas and hybrids to Radopholus similis Dochez, C. Whyte, J. Tenkouano, A. Ortíz, R. Waele, D. de breeding burrowing nematode musa genotypes nematode reproduction resistance root necrosis screening susceptibility The burrowing nematode, Radopholus similis, is a serious threat to sustainable banana production worldwide. A promising way of controlling nematodes is through the development and deployment of resistant cultivars. This usually involves crossing triploid cultivars with fertile diploids to produce tetraploids that generally display greater male and female fertility. Selected tetraploids are then crossed with improved diploids to produce sterile secondary triploids. This study evaluates the host response of the most commonly grown East African highland bananas in Uganda. Also, the host responses of diploid hybrids and East African highland banana derived hybrids, including tetraploids and secondary triploids, were evaluated. The individual root inoculation method was used for screening the Musa accessions for resistance to R. similis. The final nematode population of each accession was compared with the final nematode population of a susceptible reference cultivar, Valery, and with the final nematode population of a resistant reference cultivar, Yangambi km5. Results show that, except for cv. Muvubo, East African highland bananas were as susceptible to R. similis as cv. Valery. Four out of 13 tetraploid hybrids were identified with resistance to R. similis, as well as 13 out of 19 diploids and five out of 18 secondary triploids. 2005 2018-03-23T06:48:47Z 2018-03-23T06:48:47Z Journal Article https://hdl.handle.net/10568/91797 en Limited Access Dochez, C., Whyte, J., Tenkouano, A., Ortiz, R. & De Waele, D. (2005). Response of East African highland bananas and hybrids to Radopholus similis. Nematology, 7(5), 655-666. |
| spellingShingle | breeding burrowing nematode musa genotypes nematode reproduction resistance root necrosis screening susceptibility Dochez, C. Whyte, J. Tenkouano, A. Ortíz, R. Waele, D. de Response of East African highland bananas and hybrids to Radopholus similis |
| title | Response of East African highland bananas and hybrids to Radopholus similis |
| title_full | Response of East African highland bananas and hybrids to Radopholus similis |
| title_fullStr | Response of East African highland bananas and hybrids to Radopholus similis |
| title_full_unstemmed | Response of East African highland bananas and hybrids to Radopholus similis |
| title_short | Response of East African highland bananas and hybrids to Radopholus similis |
| title_sort | response of east african highland bananas and hybrids to radopholus similis |
| topic | breeding burrowing nematode musa genotypes nematode reproduction resistance root necrosis screening susceptibility |
| url | https://hdl.handle.net/10568/91797 |
| work_keys_str_mv | AT dochezc responseofeastafricanhighlandbananasandhybridstoradopholussimilis AT whytej responseofeastafricanhighlandbananasandhybridstoradopholussimilis AT tenkouanoa responseofeastafricanhighlandbananasandhybridstoradopholussimilis AT ortizr responseofeastafricanhighlandbananasandhybridstoradopholussimilis AT waeledde responseofeastafricanhighlandbananasandhybridstoradopholussimilis |