Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda
Stem borers are major insect pests of maize in Uganda. A study was conducted in 2014–2016 to assess the performance of Bt hybrids expressing Cry1Ab (event MON810) against the two major stem borer species in Uganda – the African stem borer (Busseola fusca) and the spotted stem borer (Chilo partellus)...
| Autores principales: | , , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Acceso en línea: | https://hdl.handle.net/10568/126367 |
| _version_ | 1855527163945549824 |
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| author | Otim, Michael Alibu, Simon Asea, Godfrey Abalo, Grace Pyton Sserumaga, Julius Adumo, Stella Alupo, Jane Ochen, Stephen Tefera, Tadele Bruce, Anani Yaovi Beyene, Yoseph Meisel, Barbara Tende, Regina Nang’ayo, Francis Baguma, Yona K. Mugo, Stephen N. Oikeh, Sylvester O. |
| author_browse | Abalo, Grace Adumo, Stella Alibu, Simon Alupo, Jane Asea, Godfrey Baguma, Yona K. Beyene, Yoseph Bruce, Anani Yaovi Meisel, Barbara Mugo, Stephen N. Nang’ayo, Francis Ochen, Stephen Oikeh, Sylvester O. Otim, Michael Pyton Sserumaga, Julius Tefera, Tadele Tende, Regina |
| author_facet | Otim, Michael Alibu, Simon Asea, Godfrey Abalo, Grace Pyton Sserumaga, Julius Adumo, Stella Alupo, Jane Ochen, Stephen Tefera, Tadele Bruce, Anani Yaovi Beyene, Yoseph Meisel, Barbara Tende, Regina Nang’ayo, Francis Baguma, Yona K. Mugo, Stephen N. Oikeh, Sylvester O. |
| author_sort | Otim, Michael |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Stem borers are major insect pests of maize in Uganda. A study was conducted in 2014–2016 to assess the performance of Bt hybrids expressing Cry1Ab (event MON810) against the two major stem borer species in Uganda – the African stem borer (Busseola fusca) and the spotted stem borer (Chilo partellus) – under artificial infestation. The study comprised 14 non-commercialized hybrids, including seven pairs of Bt and non-Bt hybrids (isolines), three non-Bt commercial hybrids and a conventional stem borer resistant check. All stem borer damage parameters (leaf damage, number of internodes tunneled and tunnel length) were generally significantly lower in Bt hybrids than in their isolines, the conventionally resistant hybrid, and local commercial hybrids. Mean yields were significantly higher by 29.4–80.5% in the Bt hybrids than in the other three categories of non-Bt hybrids. This study demonstrated that Bt maize expressing Cry1Ab protects against leaf damage and can limit entry of stem borers into the stems of maize plants, resulting in higher yield than in the non-transgenic hybrids. Thus, Bt maize has potential to contribute to the overall management package of stem borers in Uganda. |
| format | Journal Article |
| id | CGSpace126367 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1263672025-11-06T13:06:11Z Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda Otim, Michael Alibu, Simon Asea, Godfrey Abalo, Grace Pyton Sserumaga, Julius Adumo, Stella Alupo, Jane Ochen, Stephen Tefera, Tadele Bruce, Anani Yaovi Beyene, Yoseph Meisel, Barbara Tende, Regina Nang’ayo, Francis Baguma, Yona K. Mugo, Stephen N. Oikeh, Sylvester O. busseola fusca chilo partellus maize stems Stem borers are major insect pests of maize in Uganda. A study was conducted in 2014–2016 to assess the performance of Bt hybrids expressing Cry1Ab (event MON810) against the two major stem borer species in Uganda – the African stem borer (Busseola fusca) and the spotted stem borer (Chilo partellus) – under artificial infestation. The study comprised 14 non-commercialized hybrids, including seven pairs of Bt and non-Bt hybrids (isolines), three non-Bt commercial hybrids and a conventional stem borer resistant check. All stem borer damage parameters (leaf damage, number of internodes tunneled and tunnel length) were generally significantly lower in Bt hybrids than in their isolines, the conventionally resistant hybrid, and local commercial hybrids. Mean yields were significantly higher by 29.4–80.5% in the Bt hybrids than in the other three categories of non-Bt hybrids. This study demonstrated that Bt maize expressing Cry1Ab protects against leaf damage and can limit entry of stem borers into the stems of maize plants, resulting in higher yield than in the non-transgenic hybrids. Thus, Bt maize has potential to contribute to the overall management package of stem borers in Uganda. 2022-06 2022-12-28T13:10:43Z 2022-12-28T13:10:43Z Journal Article https://hdl.handle.net/10568/126367 en Open Access application/pdf Elsevier Otim, M. H., Alibu, S., Asea, G., Abalo, G., Sserumaga, J. P., Adumo, S., Alupo, J., Ochen, S., Tefera, T., Bruce, A. Y., Beyene, Y., Meisel, B., Tende, R., Nang’ayo, F., Baguma, Y., Mugo, S., & Oikeh, S. O. (2022). Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda. Crop Protection, 156, 105945. https://doi.org/10.1016/j.cropro.2022.105945 |
| spellingShingle | busseola fusca chilo partellus maize stems Otim, Michael Alibu, Simon Asea, Godfrey Abalo, Grace Pyton Sserumaga, Julius Adumo, Stella Alupo, Jane Ochen, Stephen Tefera, Tadele Bruce, Anani Yaovi Beyene, Yoseph Meisel, Barbara Tende, Regina Nang’ayo, Francis Baguma, Yona K. Mugo, Stephen N. Oikeh, Sylvester O. Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title | Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title_full | Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title_fullStr | Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title_full_unstemmed | Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title_short | Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda |
| title_sort | performance of bt maize event mon810 in controlling maize stem borers chilo partellus and busseola fusca in uganda |
| topic | busseola fusca chilo partellus maize stems |
| url | https://hdl.handle.net/10568/126367 |
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