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Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda

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Title Performance of Bt maize event MON810 in controlling maize stem borers Chilo partellus and Busseola fusca in Uganda
 
Creator Otim, Michael
Alibu, Simon
Asea, Godfrey
Abalo, Grace
Julius Pyton Sserumaga
Adumo, Stella
Alupo, Jane
Ochen, Stephen
Tadele Tefera
Bruce, Anani Y.
Beyene, Yoseph
Meisel, Barbara
Tende, Regina
Nang’ayo, Francis
Baguma, Yona K.
Mugo, Stephen N.
Oikeh, Sylvester O.
 
Subject Busseola fusca
Chilo partellus
maize
stems
 
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.
 
Date 2022-06-30
2022-12-28T13:10:43Z
2022-12-28T13:10:43Z
 
Type Journal Article
 
Identifier 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://hdl.handle.net/10883/22340
1873-6904
https://hdl.handle.net/10568/126367
https://hdl.handle.net/10883/22340
https://doi.org/10.1016/j.cropro.2022.105945
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Elsevier
 
Source Crop Protection