Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria
Nineteen white yam (Dioscorea rotundata Poir.) genotypes were grown in four agroecological zones in Nigeria for 2 years to study their responses to yam virus diseases, and to investigate the influence of genotype × environment (G × E) interactions on their reactions to virus infection, using the Add...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2006
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/91350 |
| _version_ | 1855535473702731776 |
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| author | Odu, B.O. Asiedu, Robert Shoyinka, S.A. Hughes, J.D. |
| author_browse | Asiedu, Robert Hughes, J.D. Odu, B.O. Shoyinka, S.A. |
| author_facet | Odu, B.O. Asiedu, Robert Shoyinka, S.A. Hughes, J.D. |
| author_sort | Odu, B.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Nineteen white yam (Dioscorea rotundata Poir.) genotypes were grown in four agroecological zones in Nigeria for 2 years to study their responses to yam virus diseases, and to investigate the influence of genotype × environment (G × E) interactions on their reactions to virus infection, using the Additive Main Effects and Multiplicative Interactions (AMMI) Statistical Model. Environments, genotypes and G × E interactions were all highly significant (P < 0.0001) for the virus diseases. The G × E interactions accounted for 21.4% of the treatment sum of squares, and influenced the relative ranking of the genotypes across the eight environments. Genotypes TDr 93-32 and TDr 93-27 were identified as the most stable genotypes, while TDr 1621 and TDr 1640 were shown to have resistance to virus diseases. The study also identified Jos with high yam virus disease severity as the most appropriate site for the screening of D. rotundata genotypes. |
| format | Journal Article |
| id | CGSpace91350 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace913502024-05-15T05:12:01Z Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria Odu, B.O. Asiedu, Robert Shoyinka, S.A. Hughes, J.D. dioscorea rotundata additive main effects and multiplicative interactions genotype environment interactions yam virus diseases virus disease cucumber mosaic virus dioscorea alata bacilliform virus Nineteen white yam (Dioscorea rotundata Poir.) genotypes were grown in four agroecological zones in Nigeria for 2 years to study their responses to yam virus diseases, and to investigate the influence of genotype × environment (G × E) interactions on their reactions to virus infection, using the Additive Main Effects and Multiplicative Interactions (AMMI) Statistical Model. Environments, genotypes and G × E interactions were all highly significant (P < 0.0001) for the virus diseases. The G × E interactions accounted for 21.4% of the treatment sum of squares, and influenced the relative ranking of the genotypes across the eight environments. Genotypes TDr 93-32 and TDr 93-27 were identified as the most stable genotypes, while TDr 1621 and TDr 1640 were shown to have resistance to virus diseases. The study also identified Jos with high yam virus disease severity as the most appropriate site for the screening of D. rotundata genotypes. 2006-12 2018-03-07T11:25:40Z 2018-03-07T11:25:40Z Journal Article https://hdl.handle.net/10568/91350 en Limited Access Wiley Odu, B.O., Asiedu, R., Shoyinka, S.A. & Hughes, J.D. (2006). Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria. Journal of Phytopathology, 154(11‐12), 688-693. |
| spellingShingle | dioscorea rotundata additive main effects and multiplicative interactions genotype environment interactions yam virus diseases virus disease cucumber mosaic virus dioscorea alata bacilliform virus Odu, B.O. Asiedu, Robert Shoyinka, S.A. Hughes, J.D. Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title | Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title_full | Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title_fullStr | Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title_full_unstemmed | Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title_short | Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria |
| title_sort | reaction of white guinea yam dioscorea rotundata poir genotypes to virus diseases in four agroecological zones in nigeria |
| topic | dioscorea rotundata additive main effects and multiplicative interactions genotype environment interactions yam virus diseases virus disease cucumber mosaic virus dioscorea alata bacilliform virus |
| url | https://hdl.handle.net/10568/91350 |
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