Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station
Objective: A study was conducted to estimate combining ability among four introduced drought tolerant maize (Zea mays L.) inbred lines and five local open pollinated varieties (OPVs) in Line x Tester mating design. Methodology and results: The experiment was arranged in 5 x 5 alpha lattice with thre...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/79820 |
| _version_ | 1855524700371812352 |
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| author | Meseka, S.K. Ishaaq, J. |
| author_browse | Ishaaq, J. Meseka, S.K. |
| author_facet | Meseka, S.K. Ishaaq, J. |
| author_sort | Meseka, S.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Objective: A study was conducted to estimate combining ability among four introduced drought tolerant maize (Zea mays L.) inbred lines and five local open pollinated varieties (OPVs) in Line x Tester mating
design.
Methodology and results: The experiment was arranged in 5 x 5 alpha lattice with three replications conducted at Gezira Research Station (GRS), Sudan, in 2008 and 2009. Significant differences were detected among hybrids for all measured traits. Combining ability analysis showed that non-additive gene effects were important for inheritance of all traits except ear length which was controlled by additive gene effects. General combining ability (GCA) had the highest contribution to total variation of plant height, ear height, and grain yield, whereas specific combining ability (SCA) had the highest contributions to days to 50% anthesis. Among the testers, Pop10 was the best general combiner for grain yield across the two years. (Mugtama-45 x Pop10), (Hudeiba-1 x Pop10) and (Giza-2 x 1824) exhibited significant SCA effects for grain yield. Regression of grain yields of hybrids and OPVs on their ear length revealed that grain yield accounted for 62% of the total variability. The top-cross hybrids had higher grain yields and relatively longerears than the local OPVs.
Conclusion and application: This study suggests that Pop10 was the best general combiner for grain yield
and could be used for developing hybrids in the Sudan. |
| format | Journal Article |
| id | CGSpace79820 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| record_format | dspace |
| spelling | CGSpace798202023-02-15T06:54:30Z Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station Meseka, S.K. Ishaaq, J. maize cereal crop drought tolerant combining ability top-cross hybrids line x tester Objective: A study was conducted to estimate combining ability among four introduced drought tolerant maize (Zea mays L.) inbred lines and five local open pollinated varieties (OPVs) in Line x Tester mating design. Methodology and results: The experiment was arranged in 5 x 5 alpha lattice with three replications conducted at Gezira Research Station (GRS), Sudan, in 2008 and 2009. Significant differences were detected among hybrids for all measured traits. Combining ability analysis showed that non-additive gene effects were important for inheritance of all traits except ear length which was controlled by additive gene effects. General combining ability (GCA) had the highest contribution to total variation of plant height, ear height, and grain yield, whereas specific combining ability (SCA) had the highest contributions to days to 50% anthesis. Among the testers, Pop10 was the best general combiner for grain yield across the two years. (Mugtama-45 x Pop10), (Hudeiba-1 x Pop10) and (Giza-2 x 1824) exhibited significant SCA effects for grain yield. Regression of grain yields of hybrids and OPVs on their ear length revealed that grain yield accounted for 62% of the total variability. The top-cross hybrids had higher grain yields and relatively longerears than the local OPVs. Conclusion and application: This study suggests that Pop10 was the best general combiner for grain yield and could be used for developing hybrids in the Sudan. 2012 2017-02-13T13:41:32Z 2017-02-13T13:41:32Z Journal Article https://hdl.handle.net/10568/79820 en Limited Access Meseka, S. & Ishaaq, J. (2012). Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station. Journal of Applied Biosciences, 57, 4198-4207. |
| spellingShingle | maize cereal crop drought tolerant combining ability top-cross hybrids line x tester Meseka, S.K. Ishaaq, J. Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title | Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title_full | Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title_fullStr | Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title_full_unstemmed | Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title_short | Combining ability analysis among Sudanese and IITA maize germplasm at Gezira Research Station |
| title_sort | combining ability analysis among sudanese and iita maize germplasm at gezira research station |
| topic | maize cereal crop drought tolerant combining ability top-cross hybrids line x tester |
| url | https://hdl.handle.net/10568/79820 |
| work_keys_str_mv | AT mesekask combiningabilityanalysisamongsudaneseandiitamaizegermplasmatgeziraresearchstation AT ishaaqj combiningabilityanalysisamongsudaneseandiitamaizegermplasmatgeziraresearchstation |