Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria
Adoption of improved maize (Zea mays L.) varieties in the rainforest agro-ecology of Nigeria largely depends on yielding potential and resistance to common foliar diseases. The present study aims at assessing the combining ability of a set of adapted and exotic drought-tolerant maize inbred line...
| Autores principales: | , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
2015
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/68736 |
| _version_ | 1855530862647443456 |
|---|---|
| author | Adebayo, M.A. Menkir, A. |
| author_browse | Adebayo, M.A. Menkir, A. |
| author_facet | Adebayo, M.A. Menkir, A. |
| author_sort | Adebayo, M.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Adoption of improved maize (Zea mays L.) varieties in the
rainforest agro-ecology of Nigeria largely depends on yielding
potential and resistance to common foliar diseases. The present
study aims at assessing the combining ability of a set of adapted
and exotic drought-tolerant maize inbred lines under irrigated
and rainfed conditions in Nigeria. Ninety-six hybrids generated
using a North Carolina Design II scheme, and four checks were
evaluated in a 10 × 10 triple lattice with three replications under
full irrigation in the dry seasons of 2010 and 2011 and under
natural disease inoculation in the rainy seasons of 2011 and
2012. Hybrids differed significantly for all measured traits. Both
general combining ability (GCA) and specific combining ability
(SCA) were mostly highly significant (P < 0.01) for all agronomic
traits and leaf blight. Additive genetic effects were more important
than non-additive genetic effects in controlling grain yield
and leaf blight (GCA > 70%). EXL03, EXL06, EXL16, ADL33, and
ADL47 had positive and significant female and male GCA effects
for grain yield, and significant but negative GCA effects for leaf
blight.
KEYWORDS foliar |
| format | Journal Article |
| id | CGSpace68736 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace687362025-11-11T10:35:28Z Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria Adebayo, M.A. Menkir, A. foliar diseases germplasm hybrids zea mays Adoption of improved maize (Zea mays L.) varieties in the rainforest agro-ecology of Nigeria largely depends on yielding potential and resistance to common foliar diseases. The present study aims at assessing the combining ability of a set of adapted and exotic drought-tolerant maize inbred lines under irrigated and rainfed conditions in Nigeria. Ninety-six hybrids generated using a North Carolina Design II scheme, and four checks were evaluated in a 10 × 10 triple lattice with three replications under full irrigation in the dry seasons of 2010 and 2011 and under natural disease inoculation in the rainy seasons of 2011 and 2012. Hybrids differed significantly for all measured traits. Both general combining ability (GCA) and specific combining ability (SCA) were mostly highly significant (P < 0.01) for all agronomic traits and leaf blight. Additive genetic effects were more important than non-additive genetic effects in controlling grain yield and leaf blight (GCA > 70%). EXL03, EXL06, EXL16, ADL33, and ADL47 had positive and significant female and male GCA effects for grain yield, and significant but negative GCA effects for leaf blight. KEYWORDS foliar 2015-01-02 2015-10-29T06:27:53Z 2015-10-29T06:27:53Z Journal Article https://hdl.handle.net/10568/68736 en Limited Access application/pdf Informa UK Limited Adebayo, M. A. & Menkir, A. (2015). Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria. Journal of Crop Improvement, 29(1), 117-130 |
| spellingShingle | foliar diseases germplasm hybrids zea mays Adebayo, M.A. Menkir, A. Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title | Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title_full | Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title_fullStr | Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title_full_unstemmed | Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title_short | Combining ability of adapted and exotic drought-tolerant maize inbred lines under full irrigation and rainfed conditions in Nigeria |
| title_sort | combining ability of adapted and exotic drought tolerant maize inbred lines under full irrigation and rainfed conditions in nigeria |
| topic | foliar diseases germplasm hybrids zea mays |
| url | https://hdl.handle.net/10568/68736 |
| work_keys_str_mv | AT adebayoma combiningabilityofadaptedandexoticdroughttolerantmaizeinbredlinesunderfullirrigationandrainfedconditionsinnigeria AT menkira combiningabilityofadaptedandexoticdroughttolerantmaizeinbredlinesunderfullirrigationandrainfedconditionsinnigeria |