Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield
Two sets (white- and yellow-kernelled) of six cultivars of field-maize, each comprising three hybrids and three open-pollinated (OP) varieties, were evaluated for green-maize productivity under three levels of nitrogen fertilisation (0, 60 and 120 kg ha−1) at two locations in southwestern Nigeria. T...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2007
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/91475 |
| _version_ | 1855520904269791232 |
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| author | Kim, S.K. Adetimirin, Victor O. Yoon, S.T. Adepoju, A. Gbadamosi, B.A. |
| author_browse | Adepoju, A. Adetimirin, Victor O. Gbadamosi, B.A. Kim, S.K. Yoon, S.T. |
| author_facet | Kim, S.K. Adetimirin, Victor O. Yoon, S.T. Adepoju, A. Gbadamosi, B.A. |
| author_sort | Kim, S.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Two sets (white- and yellow-kernelled) of six cultivars of field-maize, each comprising three hybrids and three open-pollinated (OP) varieties, were evaluated for green-maize productivity under three levels of nitrogen fertilisation (0, 60 and 120 kg ha−1) at two locations in southwestern Nigeria. The relationship between green-maize and grain yield was also investigated. Numbers of marketable ears and marketable-ear yield were significantly correlated. Green-maize traits and grain yields showed different responses to increased nitrogen fertiliser application: grain yield was significantly greater at 120 kg ha−1 than at 60 kg ha−1 whereas marketable-ear yield was not significantly changed by the higher rate. The hybrids showed higher green-maize and grain yield responses than the OPs to fertiliser application. At 60 kg ha−1 nitrogen application, marketable-ear yield averaged 0.620 kg m−2 and 0.567 kg m−2 for white hybrids and OPs, respectively, and 0.576 kg m−2 and 0.439 kg m−2 for yellow hybrids and OPs. Marketable-ear yield was significantly correlated with grain yield for both the white and yellow cultivars. Regressions of grain yield on marketable-ear yield were significant and such regression equations can thus be used to estimate marketable-ear yield potential from grain yield data. |
| format | Journal Article |
| id | CGSpace91475 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2007 |
| publishDateRange | 2007 |
| publishDateSort | 2007 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace914752024-08-27T10:35:28Z Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield Kim, S.K. Adetimirin, Victor O. Yoon, S.T. Adepoju, A. Gbadamosi, B.A. green-maize yield marketable-ear yield nitrogen fertilisation Two sets (white- and yellow-kernelled) of six cultivars of field-maize, each comprising three hybrids and three open-pollinated (OP) varieties, were evaluated for green-maize productivity under three levels of nitrogen fertilisation (0, 60 and 120 kg ha−1) at two locations in southwestern Nigeria. The relationship between green-maize and grain yield was also investigated. Numbers of marketable ears and marketable-ear yield were significantly correlated. Green-maize traits and grain yields showed different responses to increased nitrogen fertiliser application: grain yield was significantly greater at 120 kg ha−1 than at 60 kg ha−1 whereas marketable-ear yield was not significantly changed by the higher rate. The hybrids showed higher green-maize and grain yield responses than the OPs to fertiliser application. At 60 kg ha−1 nitrogen application, marketable-ear yield averaged 0.620 kg m−2 and 0.567 kg m−2 for white hybrids and OPs, respectively, and 0.576 kg m−2 and 0.439 kg m−2 for yellow hybrids and OPs. Marketable-ear yield was significantly correlated with grain yield for both the white and yellow cultivars. Regressions of grain yield on marketable-ear yield were significant and such regression equations can thus be used to estimate marketable-ear yield potential from grain yield data. 2007-12 2018-03-07T11:26:01Z 2018-03-07T11:26:01Z Journal Article https://hdl.handle.net/10568/91475 en Limited Access Wiley Kim, S.K., Adetimirin, V., Yoon, S.T., Adepoju, A. & Gbadamosi, B.A. (2007). Green‐maize potential of hybrid and open‐pollinated cultivars at varying levels of applied nitrogen: relationship with grain yield. Tropical Science, 47(4), 149-158. |
| spellingShingle | green-maize yield marketable-ear yield nitrogen fertilisation Kim, S.K. Adetimirin, Victor O. Yoon, S.T. Adepoju, A. Gbadamosi, B.A. Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title | Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title_full | Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title_fullStr | Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title_full_unstemmed | Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title_short | Greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen: relationship with grain yield |
| title_sort | greenmaize potential of hybrid and openpollinated cultivars at varying levels of applied nitrogen relationship with grain yield |
| topic | green-maize yield marketable-ear yield nitrogen fertilisation |
| url | https://hdl.handle.net/10568/91475 |
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