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.
,
[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
An experiment was designed to compare cycles of selection of four maize genotypes for ear- and grain-quality characteristics, interactions with Aspergillus flavus and Fusarium verticillioides infection, and insect ear infestation in two seasons. Mean infection levels by A. flavus and F. verticill...
Cardwell, K.
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Kling, J.
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Maziya-Dixon, B.B.
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Bosque Pérez, N.A.
,
[Interactions between Fusarium verticillioides, Aspergillus flavus and insects in improved maize populations in lowland Africa]
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Interactions between Fusarium verticillioides, Aspergillus flavus and insects in improved maize populations in lowland Africa
To improve efficiency of soil N and water use in the savanna, maize (Zea mays L.) cultivars with improved root systems are required. Two rainfed field experiments were conducted in Samaru, Nigeria in the 1993 and 1994 growing seasons with five maize cultivars under various rates of nitrogen ferti...
Oikeh, S.
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Kling, J.
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Horst, W.
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Chude, V.
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Carsky, R.
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[Growth and distribution of maize roots under nitrogen fertilization in plinthite soil]
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Growth and distribution of maize roots under nitrogen fertilization in plinthite soil
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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Makinde, K.
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Ajala, S.
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Menkir, A.
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[Impact of IITA improved germplasm on maize production in West and Central Africa]
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Impact of IITA improved germplasm on maize production in West and Central Africa
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.
,
[Physical, chemical, and water absorption characterisitics of tropical maize hybrids]
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Physical, chemical, and water absorption characterisitics of tropical maize hybrids
Striga hermonthica (Del.) Benth is an obligate root parasite infecting maize (Zea mays L.) and causing considerable yield losses in Africa. Few studies have been conducted to determine the effectiveness of recurrent selection for improving resistance to S. hermonthica in maize. The objective of t...
Menkir, A.
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Kling, J.
,
[Response to recurrent selection for resistance to Striga hermonthica (Del.) Benth in a tropical maize population]
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Response to recurrent selection for resistance to Striga hermonthica (Del.) Benth in a tropical maize population
A study was conducted to evaluate the use of different intra-row spacing to optimize Striga infesta- tion for resistance screening in maize. Five maize geno- types of different genetics backgrounds and contrasting reactions to Striga hermonthica were evaluated under four intra-row spacing. The ex...
Ibikunle, O.
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Menkir, A.
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Smith, M.
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Kling, J.
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[Evaluating intra row spacing to optimize techniques for artificial infestation of Striga hermonthica (Del.) Benth, screening for resistance in maize]
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Evaluating intra row spacing to optimize techniques for artificial infestation of Striga hermonthica (Del.) Benth, screening for resistance in maize
Striga-resistant maize inbred lines are of interest to maize breeding programs in the savannas of Africa where the parasitic weed is endemic and causes severe yield losses in tropical maize. Assessment of the genetic diversity of such inbred lines is useful for their systematic and efficient use ...