Improving maize productivity in the savannas of West Africa will depend on improving soil fertility and ensuring the efficient use of inputs and the relevant maize varieties tolerant to low nitrogen (N) that have been developed for this region. Several cycles of full-sib family selection that com...
Ajala, S.
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Kling, J.
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Menkir, A.
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[Full-Sib family selection in maize populations for tolerance to low soil nitrogen]
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Full-Sib family selection in maize populations for tolerance to low soil nitrogen
The International Institute of Agriculture (IITA) is among the major suppliers of genetic materials to national agricultural research and extension systems in West and Central Africa for the development of improved maize varieties. This paper presents the results of a survey of the impact of germ...
Manyong, Victor M.
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Kling, J.
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Mankinde, K.
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Ajala, S.
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Menkir, A.
,
[Impact of IITA germplasm improvement on maize production in West and Central Africa]
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Impact of IITA germplasm improvement on maize production in West and Central Africa
Simulation models have the potential of greatly enhancing decision-making by farmers and researchers in Nigeria. These models however, need to be adapted before use. This study was conducted to test the phenology module of CERES-Maize model version 3.5 under varying N rates as a step toward adapt...
Gungula, D.T.
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Kling, J.
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Togun, A.
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[CERES-maize predictions of maize phenology under nitrogenstressed conditions in Nigeria]
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CERES-maize predictions of maize phenology under nitrogenstressed conditions in Nigeria
Kim, S.K.
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Kling, J.
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Weber, G.
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[Production de semences de mais hybride: Guide de recherche de lIita, No. 59]
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Production de semences de mais hybride: Guide de recherche de lIita, No. 59
Le mildiou, une maladie qui attaque le mais et le sorgho est provoque par le cryptogame peronosclerospora sorghi. La souche specifique au sorgho, qui attaque et le sorgho et le mais, est presente partout en Afrique ou le sorgo est cultive. La souche specifique au mais est plus rare, et ne se renc...
Cardwell, K.
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Kling, J.
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Bock, C.
,
[Comparison of field inoculation methods for screening maize against downy mildew (Perononsclerospora sorghi)]
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Comparison of field inoculation methods for screening maize against downy mildew (Perononsclerospora sorghi)
Assessment of genetic gain in two tropical maize (Zea mays L.) composites improved across years is critical in determining their future improvement and use as sources of inbred lines. Two genetically complementary tropical maize composites were subjected to four cycles of reciprocal recurrent sel...
Kolawole, A.O.
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Menkir, A.
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Blay, E.
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Ofori, K.
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Kling, J.
,
[Genetic advance in grain yield and other traits in two tropical maize composites developed via reciprocal recurrent selection]
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Genetic advance in grain yield and other traits in two tropical maize composites developed via reciprocal recurrent selection
Le malS est une cereale importante. De par Ie monde, la production de ble, de malS et de riz depasse largement celle de toute autre culture. Parmi ces vi-vriers, Ie mals offre Ie plus fort rendement moyen is l'hectare. Bien qu'il soit cuItive sur des superficies plus limitees que Ie hIe ou Ie riz...
The choice of the selection method to be used in the genetic improvement of a crop depends upon the type of gene action controlling the characters under study. Design 1 crosses were made in an open-pollinated maize population, TZL Composite-1 C1. As a result, 320 full-sib families were generated ...
Akanvou, L.
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Doku, E.V.
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Kling, J.
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[Estimates of genetic variances and interrelationships of traits associated with Striga resistance in maize]
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Estimates of genetic variances and interrelationships of traits associated with Striga resistance in maize
The parasitic witchweed, Striga hermonthica (Del.) Benth, is the greatest biological constraint for cereal crop production by resource-poor farmers in sub-Saharan Africa. Maize, Zea mays L., is a widely grown cereal crop in this region (22 × 106 ha). Striga-resistant maize populations were produc...
Kim, S.K.
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Fajemisin, J.
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Thé, C.
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Adepoju, A.
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Kling, J.
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Badu-Apraku, B.
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Versteeg, M.
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Carsky, R.
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Lagoke, S.T.O.
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[Development of synthetic maize populations for resistance to Striga hermonthica]
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Development of synthetic maize populations for resistance to Striga hermonthica