Breeding for resistance to Striga can be done effectively under high and uniform artificial field infestation. To identify Striga tolerantresistant maize genotypes, it is essential to artificially inoculate every hill of maize in the breeding nursery with Striga seeds. The present method of inocu...
Ibikunle, O.A.
,
Menkir, A.
,
Kamara, A.Y.
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Ajeigbe, Hakeem A.
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Smith, M.A.
,
[Evaluation of artificial field infestation techniques with Striga Hermonthica for resistance screening in maize (Zea mays L.)]
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Evaluation of artificial field infestation techniques with Striga Hermonthica for resistance screening in maize (Zea mays L.)
Maize is a staple food for millions of people in sub-Saharan Africa where a significant number of people suffer from vitamin A deficiency. Yellow maize contains both pro-vitamin A and nonprovitamin A carotenoids with potential health benefits to humans. An improvement in the concentration of thes...
The discovery and use of genetic markers associated with carotenoid levels can help to exploit the genetic potential of maize for provitamin A accumulation more effectively. Provitamin A carotenoids are classes of carotenoids that are precursors of vitamin A, an essential micronutrient in humans....
Azmach, G.
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Menkir, A.
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Spilane, C.
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Gedil, M.
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[Genetic loci controlling carotenoid biosynthesis in diverse tropical maize lines]
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Genetic loci controlling carotenoid biosynthesis in diverse tropical maize lines
Maize production in West and Central Africa (WCA) is constrained by a wide range of interacting stresses that keep productivity below potential yields. Among the many problems afflicting maize production in WCA, drought, foliar diseases, and parasitic weeds are the most critical. Several decades ...
Gedil, M.
,
Menkir, A.
,
[An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa]
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An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa
The study aimed at examining the associations between yield and other traits under drought stress and non-stress conditions. A total of 150 MARS testcrosses were evaluated under both conditions at the International Institute of Tropical Agriculture substation for two years under during the dry se...
Bankole, F.
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Menkir, A.
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Olaoye, G.
,
Olakojo, O.
,
Gedil, M.
,
[Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition]
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Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition
Insect pests are serious constraints to production of maize. There is little information on the control measures against those insects in Cameroon. This study was carried out to identify the different species of fall armyworm and stem borers of maize and test the efficacy of different control met...
Kammo, E.Q.
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Suh, C.
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Mbong, G.A.
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Djomo, S.H.
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Chimi, N.L.L.
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Mbeungang, D.L.
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Mafouasson, H.
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Meseka, S.
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Menkir, A.
,
[Biological versus chemical control of fall armyworm and Lepidoptera stem borers of maize (Zea mays)]
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Biological versus chemical control of fall armyworm and Lepidoptera stem borers of maize (Zea mays)
An in vitro digestion/Caco-2 cell model was used to assess iron bioavailability of twenty elite late-maturing tropical maize varieties grown in three diverse agroecologies in West and Central Africa (WCA). Kernel-iron concentration of the varieties, averaged across locations, varied from 19.2 to ...
Oikeh, S.O.
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Menkir, A.
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Maziya-Dixon, B.B.
,
Welch, R.M.
,
Glahn, Raymond P.
,
[Assessment of iron bioavailability from twenty elite latematuring tropical maize varieties using an in vitro digestion/Caco2 cell model]
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Assessment of iron bioavailability from twenty elite latematuring tropical maize varieties using an in vitro digestion/Caco2 cell model
Full-sib families derived from Pool 16 DT, a tropical maize ( Zea mays L.) population, were evaluated in the 1995/96 and 1997/98 dry seasons, using two sites each season in Côte d’Ivoire. In all sites, the crop was irrigated from planting to about 2 weeks before anthesis, irrigation was discontin...
Badu-Apraku, B.
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Fakorede, M.A.B.
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Menkir, A.
,
Kamara, A.
,
Dapaah, S.
,
[Screening maize for drought tolerance in the Guinea savanna of West and Central Africa]
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Screening maize for drought tolerance in the Guinea savanna of West and Central Africa
Vitamin A Deficiency (VAD) is a major public health problem in Sub-Saharan Africa affecting 33 million preschool-age children. Enrichment of maize varieties with provitamin A could provide sustainable and affordable solution to VAD. This study was conducted to understand the extent of GEI effects...
Mengesha Abera, W.
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Menkir, A.
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Meseka, S.
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Bossey, B.
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Afolabi, A.
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Burgueno, J.
,
Crossa, J.
,
[Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics]
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Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics
Striga hermonthica (Del.) Benth parasitizes maize (Zea mays L.) in sub-Saharan Africa, causing yield losses of up to 100% under severe infestation. Hybrid maize breeding for polygenic resistance to Striga has been undertaken at the International Institute of Tropical Agriculture (IITA) since the ...
Menkir, A.
,
Meseka, S.
,
[Genetic improvement in resistance to Striga in tropical maize hybrids]
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Genetic improvement in resistance to Striga in tropical maize hybrids