Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky
The effects of maize variety and storage form on development of the maize weevil, Sitophilus zeamais Motschulsky, were studied under artificial infestation at 25 ± 2 °C and 70 ± 5% r.h. in the laboratory. Three improved West African maize varieties, Abeleehi, EV8725-SR, Pop63-SR and the local variet...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
1995
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/97328 |
| _version_ | 1855531340253888512 |
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| author | Vowotor, K.A. Bosque Pérez, N.A. Ayertey, J. |
| author_browse | Ayertey, J. Bosque Pérez, N.A. Vowotor, K.A. |
| author_facet | Vowotor, K.A. Bosque Pérez, N.A. Ayertey, J. |
| author_sort | Vowotor, K.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The effects of maize variety and storage form on development of the maize weevil, Sitophilus zeamais Motschulsky, were studied under artificial infestation at 25 ± 2 °C and 70 ± 5% r.h. in the laboratory. Three improved West African maize varieties, Abeleehi, EV8725-SR, Pop63-SR and the local variety, Volta Local, stored shelled and as cobs without husks (=unshelled) were used. Dissections of infested grain were used to monitor insect development at regular intervals. Maize variety and storage form had a significant effect (P < 0.05) on the mean duration of most developmental stages. Across varieties, the mean total duration of larval stages (first to fourth) was 25.2 d on unshelled grain vs 22.8 d on shelled grain. By day 30, 76% of third instar larvae in shelled kernels had tunnelled to the germ and fed on the radicle and scutellum portions compared to 44% of the larvae in unshelled grain. The pre-emerged adult spent 5.3 d longer in unshelled than in shelled maize. The mean weights of the developing insect (across varieties) were not significantly influenced by storage form, except for the first and third instar larvae, which gave higher mean weights on shelled than unshelled grain. Both maize variety and storage form influenced the site of weevil emergence from the kernel. |
| format | Journal Article |
| id | CGSpace97328 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1995 |
| publishDateRange | 1995 |
| publishDateSort | 1995 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace973282025-11-11T10:36:22Z Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky Vowotor, K.A. Bosque Pérez, N.A. Ayertey, J. maize sitophilus zeamais storage insect The effects of maize variety and storage form on development of the maize weevil, Sitophilus zeamais Motschulsky, were studied under artificial infestation at 25 ± 2 °C and 70 ± 5% r.h. in the laboratory. Three improved West African maize varieties, Abeleehi, EV8725-SR, Pop63-SR and the local variety, Volta Local, stored shelled and as cobs without husks (=unshelled) were used. Dissections of infested grain were used to monitor insect development at regular intervals. Maize variety and storage form had a significant effect (P < 0.05) on the mean duration of most developmental stages. Across varieties, the mean total duration of larval stages (first to fourth) was 25.2 d on unshelled grain vs 22.8 d on shelled grain. By day 30, 76% of third instar larvae in shelled kernels had tunnelled to the germ and fed on the radicle and scutellum portions compared to 44% of the larvae in unshelled grain. The pre-emerged adult spent 5.3 d longer in unshelled than in shelled maize. The mean weights of the developing insect (across varieties) were not significantly influenced by storage form, except for the first and third instar larvae, which gave higher mean weights on shelled than unshelled grain. Both maize variety and storage form influenced the site of weevil emergence from the kernel. 1995-01 2018-09-14T07:37:33Z 2018-09-14T07:37:33Z Journal Article https://hdl.handle.net/10568/97328 en Limited Access application/pdf Elsevier Vowotor, K.A., Bosque-Perez, N.A. & Ayertey, J. (1995). Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky. Journal of Stored Products Research, 31(1), 29-36. |
| spellingShingle | maize sitophilus zeamais storage insect Vowotor, K.A. Bosque Pérez, N.A. Ayertey, J. Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title | Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title_full | Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title_fullStr | Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title_full_unstemmed | Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title_short | Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky |
| title_sort | effect of maize variety and storage form on the development of the maize weevil sitophilus zeamais motschulsky |
| topic | maize sitophilus zeamais storage insect |
| url | https://hdl.handle.net/10568/97328 |
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