Progress from reciprocal recurrent selection in two earlymaturing maize composites
Two early-maturing maize (Zea maysL.} composites, TZE COMP 3 and TZE COMP 4, are undergoing improvement by reciprocal recurrent selection (RRS) at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. Fifty random Si lines from each of the original (CO) and the two improved cy...
| Autores principales: | , , , |
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| Formato: | Conference Paper |
| Lenguaje: | Inglés |
| Publicado: |
2003
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/107695 |
| _version_ | 1855538065469079552 |
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| author | Salami, A.E. Menkir, A. Akorda, M. Adetimirin, Victor O. |
| author_browse | Adetimirin, Victor O. Akorda, M. Menkir, A. Salami, A.E. |
| author_facet | Salami, A.E. Menkir, A. Akorda, M. Adetimirin, Victor O. |
| author_sort | Salami, A.E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Two early-maturing maize (Zea maysL.} composites, TZE COMP 3 and TZE COMP 4, are undergoing improvement by reciprocal recurrent selection (RRS) at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. Fifty random Si lines from each of the original (CO) and the two improved cycles (Cl and C2) of selection were evaluated at Ikenne in 1998 and 1999 and at Zaria in 1999. The objective was to determine the progress from two cycles of selection. Response to selection for grain yield was 10.4% per cycle in TZE COMP3 and 5.7% in TZE COMP4. Selection also increased days to 50% silking, ear height, and plant height by 1.18 to 3.76% per cycle, but reduced plant and ear aspects. |
| format | Conference Paper |
| id | CGSpace107695 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2003 |
| publishDateRange | 2003 |
| publishDateSort | 2003 |
| record_format | dspace |
| spelling | CGSpace1076952024-01-17T12:58:34Z Progress from reciprocal recurrent selection in two earlymaturing maize composites Salami, A.E. Menkir, A. Akorda, M. Adetimirin, Victor O. maize genetic variance Two early-maturing maize (Zea maysL.} composites, TZE COMP 3 and TZE COMP 4, are undergoing improvement by reciprocal recurrent selection (RRS) at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. Fifty random Si lines from each of the original (CO) and the two improved cycles (Cl and C2) of selection were evaluated at Ikenne in 1998 and 1999 and at Zaria in 1999. The objective was to determine the progress from two cycles of selection. Response to selection for grain yield was 10.4% per cycle in TZE COMP3 and 5.7% in TZE COMP4. Selection also increased days to 50% silking, ear height, and plant height by 1.18 to 3.76% per cycle, but reduced plant and ear aspects. 2003 2020-03-12T10:06:32Z 2020-03-12T10:06:32Z Conference Paper https://hdl.handle.net/10568/107695 en Limited Access Salami, A.E., Menkir, A., Akoroda, M. & Adetimirin, V.O. (2003). Progress from reciprocal recurrent selection in two early-maturing maize composites. In Maize revolution in West and Central Africa: proceedings of a Regional Maize Workshop, Ibadan, Nigeria, 14-18 May 2001, Ibadan, Nigeria: IITA, (p. 142-150). |
| spellingShingle | maize genetic variance Salami, A.E. Menkir, A. Akorda, M. Adetimirin, Victor O. Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title | Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title_full | Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title_fullStr | Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title_full_unstemmed | Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title_short | Progress from reciprocal recurrent selection in two earlymaturing maize composites |
| title_sort | progress from reciprocal recurrent selection in two earlymaturing maize composites |
| topic | maize genetic variance |
| url | https://hdl.handle.net/10568/107695 |
| work_keys_str_mv | AT salamiae progressfromreciprocalrecurrentselectionintwoearlymaturingmaizecomposites AT menkira progressfromreciprocalrecurrentselectionintwoearlymaturingmaizecomposites AT akordam progressfromreciprocalrecurrentselectionintwoearlymaturingmaizecomposites AT adetimirinvictoro progressfromreciprocalrecurrentselectionintwoearlymaturingmaizecomposites |