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.
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[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
Cardwell, K.
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Kling, J.
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Bock, C.
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[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)
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
Stratifying a broad target growing area of a crop into different ecological zones has been an important first step in plant breeding. To cater for the diverse maize growing environments in West and Central Africa, germplasm development and testing at IITA have been targeted to four agroecological...
Menkir, A.
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Kling, J.
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Jagtap, S.S.
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Aliyu, B.
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[GIS based classification of maize testing locations in West and Central Africa]
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GIS based classification of maize testing locations in West and Central Africa
Eleven maize varieties were evaluated for their component yields, protein and ash contents and organoleptic properties when processed into two traditional Nigerian foods, ogi and eko. Significant differences were observed among varieties for component yields and total percent recovery. Yields of ...
Omueti, O.
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Iken, J.
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Okoruwa, A.
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Kling, J.
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[Comparison of component yields and sensory properties of traditional Nigerian foods (Ogi and Eko) derived from eleven maize varieties]
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Comparison of component yields and sensory properties of traditional Nigerian foods (Ogi and Eko) derived from eleven maize varieties
Striga hermonthica (Del.) Benth. is a parasitic weed that seriously constrains maize (Zea mays L) production in sub-Saharan Africa. Yield losses from the infestation of S. hermonthica on maize can reach up to 100%. Host plant resistance is the most effective means of control of the weed, but the ...
Striga herntonthica (Del) Benth., est une herbe parasite limitant laproduction du mais Vea ntoys L.) en Afrique sub-Saharienne. Lespertes en rendement du mais dues ir S. hermontfu'co peuvent atteindre 100 %. La rEsistance genetique est la m6thode la plus efficace pourlutter contre cette plante pa...
Yallou, C.
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Menkir, A.
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Adetimirin, V.
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Kling, J.
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[Combining ability of diverse maize inbred lines under Striga infestation in Nigeria and Benin]
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Combining ability of diverse maize inbred lines under Striga infestation in Nigeria and Benin
Hybrids adapted to West and Central Africa were developed by the International Institute of Tropical Agriculture (IITA) in the 1980s, which enable the establishment of several private seed companies in Nigeria. Despite the superior agronomic performance of hybrids, farmers still prefer their trad...
Maziya-Dixon, B.B.
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Kling, J.
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Okoruwa, A.
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[Physical, chemical, and water absorption characterisitics of tropical maize hybrids]
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Physical, chemical, and water absorption characterisitics of tropical maize hybrids