Performance of tropical early maturing maize cultivars in multiple stress environments
Maize (Zea mays L.) production in west Africa (WA) is constrained by drought, Striga hermonthica infestation and low soil nitrogen (N). Maize varieties resistant to Striga, drought, and low N are ideal for WA, but genotype × environment interaction on these traits are usually significant due to diff...
| 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/10568/90367 |
| _version_ | 1855513794165342208 |
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| author | Badu-Apraku, Baffour Menkir, A. Ajala, S. Akinwale, R. Oyekunle, M. Obeng-Antwi, K. |
| author_browse | Ajala, S. Akinwale, R. Badu-Apraku, Baffour Menkir, A. Obeng-Antwi, K. Oyekunle, M. |
| author_facet | Badu-Apraku, Baffour Menkir, A. Ajala, S. Akinwale, R. Oyekunle, M. Obeng-Antwi, K. |
| author_sort | Badu-Apraku, Baffour |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Maize (Zea mays L.) production in west Africa (WA) is constrained by drought, Striga hermonthica infestation and low soil nitrogen (N). Maize varieties resistant to Striga, drought, and low N are ideal for WA, but genotype × environment interaction on these traits are usually significant due to differential responses of cultivars to growing conditions. Three studies were conducted from 2007 to 2009 at five locations in Nigeria to evaluate the performance of selected early-maturing cultivars under drought stress versus well-watered, Striga-infested versus Striga-free, and in low- versus high-N environments. Drought stress reduced grain yield by 44%, Striga infestation by 65%, and low N by 40%. GGE biplot analysis showed that the genotypes TZE-W DT STR C4, Tillering Early DT, TZE-W DT STR QPM C0 and TZE-Y DT STR C4 performed relatively well in all study environments. TZE-W DT STR C4 and TZE Comp3 C1F2 were outstanding under drought, TZE-W DT STR C4, EVDT-W 99 STR QPM C0 and TZE-W DT STR QPMC0 under Striga infestation and Tillering Early DT, EVDT 97 STRC1, TZE-W DT STR C4, and TZE Comp3 C3 under N deficiency. Maize productivity in WA can be significantly improved by promoting cultivation of genotypes that combine high resistance/tolerance to Striga and drought with improved N-use efficiency. |
| format | Journal Article |
| id | CGSpace90367 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| record_format | dspace |
| spelling | CGSpace903672023-08-03T08:10:50Z Performance of tropical early maturing maize cultivars in multiple stress environments Badu-Apraku, Baffour Menkir, A. Ajala, S. Akinwale, R. Oyekunle, M. Obeng-Antwi, K. genotype environment interaction zea mays striga hermonthica managed drought stress Maize (Zea mays L.) production in west Africa (WA) is constrained by drought, Striga hermonthica infestation and low soil nitrogen (N). Maize varieties resistant to Striga, drought, and low N are ideal for WA, but genotype × environment interaction on these traits are usually significant due to differential responses of cultivars to growing conditions. Three studies were conducted from 2007 to 2009 at five locations in Nigeria to evaluate the performance of selected early-maturing cultivars under drought stress versus well-watered, Striga-infested versus Striga-free, and in low- versus high-N environments. Drought stress reduced grain yield by 44%, Striga infestation by 65%, and low N by 40%. GGE biplot analysis showed that the genotypes TZE-W DT STR C4, Tillering Early DT, TZE-W DT STR QPM C0 and TZE-Y DT STR C4 performed relatively well in all study environments. TZE-W DT STR C4 and TZE Comp3 C1F2 were outstanding under drought, TZE-W DT STR C4, EVDT-W 99 STR QPM C0 and TZE-W DT STR QPMC0 under Striga infestation and Tillering Early DT, EVDT 97 STRC1, TZE-W DT STR C4, and TZE Comp3 C3 under N deficiency. Maize productivity in WA can be significantly improved by promoting cultivation of genotypes that combine high resistance/tolerance to Striga and drought with improved N-use efficiency. 2010-11 2018-01-16T12:03:40Z 2018-01-16T12:03:40Z Journal Article https://hdl.handle.net/10568/90367 en Limited Access Badu-Apraku, B., Menkir, A., Ajala, S., Akinwale, R., Oyekunle, M. & Obeng-Antwi, K. (2010). Performance of tropical early-maturing maize cultivars in multiple stress environments. Canadian Journal of Plant Science, 90(6), 831-852. |
| spellingShingle | genotype environment interaction zea mays striga hermonthica managed drought stress Badu-Apraku, Baffour Menkir, A. Ajala, S. Akinwale, R. Oyekunle, M. Obeng-Antwi, K. Performance of tropical early maturing maize cultivars in multiple stress environments |
| title | Performance of tropical early maturing maize cultivars in multiple stress environments |
| title_full | Performance of tropical early maturing maize cultivars in multiple stress environments |
| title_fullStr | Performance of tropical early maturing maize cultivars in multiple stress environments |
| title_full_unstemmed | Performance of tropical early maturing maize cultivars in multiple stress environments |
| title_short | Performance of tropical early maturing maize cultivars in multiple stress environments |
| title_sort | performance of tropical early maturing maize cultivars in multiple stress environments |
| topic | genotype environment interaction zea mays striga hermonthica managed drought stress |
| url | https://hdl.handle.net/10568/90367 |
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