Response of upland rice cultivars to weed competition in the savannas of West Africa
A 2-year field study was conducted to assess the effect of weed competition on the performance ofupland rice cultivars in the savannas of Nigeria. A split-plot design was used with three weeding levels asthe main plot treatments and the rice cultivars CG 14, ITA 150, WAB 56-104, NERICA1, NERICA2, an...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2009
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/90184 |
| _version_ | 1855529874169528320 |
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| author | Ekeleme, F. Kamara, A.Y. Oikeh, S.O. Omoigui, L.O. Amaza, P. Abdoulaye, Tahirou Chikoye, David |
| author_browse | Abdoulaye, Tahirou Amaza, P. Chikoye, David Ekeleme, F. Kamara, A.Y. Oikeh, S.O. Omoigui, L.O. |
| author_facet | Ekeleme, F. Kamara, A.Y. Oikeh, S.O. Omoigui, L.O. Amaza, P. Abdoulaye, Tahirou Chikoye, David |
| author_sort | Ekeleme, F. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A 2-year field study was conducted to assess the effect of weed competition on the performance ofupland rice cultivars in the savannas of Nigeria. A split-plot design was used with three weeding levels asthe main plot treatments and the rice cultivars CG 14, ITA 150, WAB 56-104, NERICA1, NERICA2, andNERICA4 as the subplots. Grain yield, spikelets plant 1and days to flowering differed significantly inplots weeded once or twice. Weed dry weight was negatively correlated with grain yield. Grain yield inall cultivars was over 50% less in the unweeded plots than in plots weeded once or twice. At Sabon-Gari,NERICA1 (unweeded or weeded twice), and NERICA4 (weeded once) were the most profitable. At Tilla,NERICA4 was the most profitable when weeded once or twice. Results showed that, given the profit-ability levels under the different weeding regimes, farmers would have higher marginal returns if theygrew NERICA1 at Sabon-Gari and NERICA4 at Tilla and weed their rice plots twice. |
| format | Journal Article |
| id | CGSpace90184 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace901842023-12-08T19:36:04Z Response of upland rice cultivars to weed competition in the savannas of West Africa Ekeleme, F. Kamara, A.Y. Oikeh, S.O. Omoigui, L.O. Amaza, P. Abdoulaye, Tahirou Chikoye, David weed competition weed dry weight weeding levels nerica gross margin smallholders herbicides rice cultivars A 2-year field study was conducted to assess the effect of weed competition on the performance ofupland rice cultivars in the savannas of Nigeria. A split-plot design was used with three weeding levels asthe main plot treatments and the rice cultivars CG 14, ITA 150, WAB 56-104, NERICA1, NERICA2, andNERICA4 as the subplots. Grain yield, spikelets plant 1and days to flowering differed significantly inplots weeded once or twice. Weed dry weight was negatively correlated with grain yield. Grain yield inall cultivars was over 50% less in the unweeded plots than in plots weeded once or twice. At Sabon-Gari,NERICA1 (unweeded or weeded twice), and NERICA4 (weeded once) were the most profitable. At Tilla,NERICA4 was the most profitable when weeded once or twice. Results showed that, given the profit-ability levels under the different weeding regimes, farmers would have higher marginal returns if theygrew NERICA1 at Sabon-Gari and NERICA4 at Tilla and weed their rice plots twice. 2009-01 2018-01-15T10:50:46Z 2018-01-15T10:50:46Z Journal Article https://hdl.handle.net/10568/90184 en Limited Access Elsevier Ekeleme, F., Kamara, A.Y., Oikeh, S.O., Omoigui, L.O., Amaza, P., Abdoulaye, T. & Chikoye, D. (2009). Response of upland rice cultivars to weed competition in the savannas of West Africa. Crop Protection, 28(1), 90-96. |
| spellingShingle | weed competition weed dry weight weeding levels nerica gross margin smallholders herbicides rice cultivars Ekeleme, F. Kamara, A.Y. Oikeh, S.O. Omoigui, L.O. Amaza, P. Abdoulaye, Tahirou Chikoye, David Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title | Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title_full | Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title_fullStr | Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title_full_unstemmed | Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title_short | Response of upland rice cultivars to weed competition in the savannas of West Africa |
| title_sort | response of upland rice cultivars to weed competition in the savannas of west africa |
| topic | weed competition weed dry weight weeding levels nerica gross margin smallholders herbicides rice cultivars |
| url | https://hdl.handle.net/10568/90184 |
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