Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups
Identifying efficient testers for separating maize (Zea mays L.) inbred lines into heterotic groups can facilitate the development of superior hybrids. Striga-resistant yellow-maize inbred lines developed at the International Institute of Tropical Agriculture (IITA) do not have well established hete...
| Autores principales: | , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
2022
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/126076 |
| _version_ | 1855540160779780096 |
|---|---|
| author | Zebire, D. Menkir, A. Adetimirin, Victor O. Mengesha Abera, W. Meseka, S.K. Gedil, Melaku A |
| author_browse | Adetimirin, Victor O. Gedil, Melaku A Mengesha Abera, W. Menkir, A. Meseka, S.K. Zebire, D. |
| author_facet | Zebire, D. Menkir, A. Adetimirin, Victor O. Mengesha Abera, W. Meseka, S.K. Gedil, Melaku A |
| author_sort | Zebire, D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Identifying efficient testers for separating maize (Zea mays L.) inbred lines into heterotic groups can facilitate the development of superior hybrids. Striga-resistant yellow-maize inbred lines developed at the International Institute of Tropical Agriculture (IITA) do not have well established heterotic groups. This study was conducted to identify efficient testers for classifying yellow-maize inbred lines into heterotic groups. Thirty Striga-resistant inbred lines were crossed with three testers having varying levels of resistance to Striga. A trial comprising 90 testcrosses and two hybrid checks was conducted at two locations in Nigeria for 2 years under Striga-infested and non-infested conditions. The approach that involved specific combining ability (SCA) effects and mean grain yields was found to be more efficient than the heterotic group’s specific and general combining ability (HSGCA) grouping method in separating the 30 inbred lines into three heterotic groups. The tolerant and resistant testers were highly efficient in grouping the inbred lines into heterotic groups under Striga-infested and non-infested conditions using the two approaches. Striga-resistant yellow inbred lines assigned to two of the three major heterotic groups could be used as parents for developing superior hybrids and/or synthetics and for generating source populations for developing new maize inbred lines. |
| format | Journal Article |
| id | CGSpace126076 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1260762024-11-07T09:33:24Z Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups Zebire, D. Menkir, A. Adetimirin, Victor O. Mengesha Abera, W. Meseka, S.K. Gedil, Melaku A maize striga hermonthica disease resistance hybrids varieties Identifying efficient testers for separating maize (Zea mays L.) inbred lines into heterotic groups can facilitate the development of superior hybrids. Striga-resistant yellow-maize inbred lines developed at the International Institute of Tropical Agriculture (IITA) do not have well established heterotic groups. This study was conducted to identify efficient testers for classifying yellow-maize inbred lines into heterotic groups. Thirty Striga-resistant inbred lines were crossed with three testers having varying levels of resistance to Striga. A trial comprising 90 testcrosses and two hybrid checks was conducted at two locations in Nigeria for 2 years under Striga-infested and non-infested conditions. The approach that involved specific combining ability (SCA) effects and mean grain yields was found to be more efficient than the heterotic group’s specific and general combining ability (HSGCA) grouping method in separating the 30 inbred lines into three heterotic groups. The tolerant and resistant testers were highly efficient in grouping the inbred lines into heterotic groups under Striga-infested and non-infested conditions using the two approaches. Striga-resistant yellow inbred lines assigned to two of the three major heterotic groups could be used as parents for developing superior hybrids and/or synthetics and for generating source populations for developing new maize inbred lines. 2022-07-04 2022-12-19T11:43:00Z 2022-12-19T11:43:00Z Journal Article https://hdl.handle.net/10568/126076 en Limited Access Informa UK Limited Zebire, D., Menkir, A., Adetimirin, V., Mengesha, W., Meseka, S.K. & Gedil, M. (2022). Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups. Journal of Crop Improvement, 36(4), 473-493. |
| spellingShingle | maize striga hermonthica disease resistance hybrids varieties Zebire, D. Menkir, A. Adetimirin, Victor O. Mengesha Abera, W. Meseka, S.K. Gedil, Melaku A Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title | Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title_full | Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title_fullStr | Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title_full_unstemmed | Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title_short | Efficacy of maize inbred testers with varying levels of resistance to Striga for classifying Striga-resistant yellow-maize lines into heterotic groups |
| title_sort | efficacy of maize inbred testers with varying levels of resistance to striga for classifying striga resistant yellow maize lines into heterotic groups |
| topic | maize striga hermonthica disease resistance hybrids varieties |
| url | https://hdl.handle.net/10568/126076 |
| work_keys_str_mv | AT zebired efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups AT menkira efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups AT adetimirinvictoro efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups AT mengeshaaberaw efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups AT mesekask efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups AT gedilmelakua efficacyofmaizeinbredtesterswithvaryinglevelsofresistancetostrigaforclassifyingstrigaresistantyellowmaizelinesintoheteroticgroups |