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The overall goal of Balanced Nutrient Management Systems (BNMS) a collaborative project between International Institute of Tropical Agriculture (IITA) and Katholieke Universiteit Leuven (K.U. Leuven) is to curb the vicious cycle of plant nutrient depletion in maize-based farming systems in the mo...


Omadachi, U.O.Ahmed, B.Manyong, Victor M.Olukosi, J.Yusuf, O.[Economic analysis of balanced nutrient management technologies for maize production in Kaduna state, Nigeria]Economic analysis of balanced nutrient management technologies for maize production in Kaduna state, Nigeria

phytoparasite, Striga hermonthica (Del.) Benth., infests millions of hectares of cultivated fields of cereal crops in sub-Saharan Africa. Yield losses are often 70 but can be as high as 100% and farmers often abandon infested fields and move to new areas. The objectives of this study were to inve...


Kim, S.K.Adetimirin, V.O.Akintunde, A.Y.[Nitrogen effects on Striga hermonthica infestation, grain yield and agronomic traits of tolerant and susceptible maize hybrids]Nitrogen effects on Striga hermonthica infestation, grain yield and agronomic traits of tolerant and susceptible maize hybrids

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.Menkir, A.Spilane, C.Gedil, M.[Genetic loci controlling carotenoid biosynthesis in diverse tropical maize lines]Genetic loci controlling carotenoid biosynthesis in diverse tropical maize lines

The movement of Cicadulina storeyi China (Homoptera: Cicadellidae), vector of maize streak geminivirus, within maize (Zea mays L.) fields was studied using mark, release and recapture experiments. Cicadulina storeyi, marked with fluorescent dye, were released at dusk and monitored for 14 days usi...


Asanzi, C.M.Bosque Pérez, N.A.Nault, L.R.[Movement of Cicadulina storeyi [Homoptera:Cicadellidae] in maize fields and its behavior in relation to maize growth stage]Movement of Cicadulina storeyi [Homoptera:Cicadellidae] in maize fields and its behavior in relation to maize growth stage

Vitamin A deficiency, drought, low soil nitrogen (low N) and Striga hermonthica parasitism of maize (Zea mays L.) cause malnutrition and food insecurity in sub-Saharan Africa. The objectives of this study were to determine combining abilities of extra-early provitamin A (PVA) lines, classify them...


Badu-Apraku, B.Fakorede, M.A.B.Talabi, A.O.Oyekunle, M.Aderounmu, M.Lum, A.F.Ribeiro, P.F.Adu, G.B.Toyinbo, J.O.[Genetic studies of extra-early provitamin-A maize inbred lines and their hybrids in multiple environments]Genetic studies of extra-early provitamin-A maize inbred lines and their hybrids in multiple environments

Geographic distribution, relative importance, and effect of lepidopterous stem and ear borers on maize, Zea mays L., were studied in the humid forest and the mid-altitude zones of Cameroon from 1994 to 1997. Six villages were chosen in the forest zone and grouped into three blocks representing gr...


Ndemah, R.Schulthess, F.Korie, S.Borgemeister, C.Cardwell, K.F.[Distribution, relative importance and effect of lepidopterous borers on maize yields in the forest zone and midaltitude of Cameroon]Distribution, relative importance and effect of lepidopterous borers on maize yields in the forest zone and midaltitude of Cameroon

Maize dominated cassava irrespective of cassava or maize growth habit and the optimum maize population giving the highest production based on relative yield total or land equivalent ratio varied with maize variety in a tropical Alfisol at Ibadan, transition humid/subhumid zone in West Africa. The...


Ezumah, H.Lawson, T.[Cassava and maize intercropping system: the effects of varieties and plant populations]Cassava and maize intercropping system: the effects of varieties and plant populations

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.Doku, E.V.Kling, J.[Estimates of genetic variances and interrelationships of traits associated with Striga resistance in maize]Estimates of genetic variances and interrelationships of traits associated with Striga resistance in maize

Seed treatments with two acetolactate synthase (ALS)-inhibiting herbicides, the sulfony- lurea herbicide nicosulfuron and the imidazolinone herbicide imazaquin, controlled the parasitic weed Striga hermonthica in corn. The XA-17 gene in ALS-modified P3180IR corn strongly reduced corn injury from ...


Berner, D.K.Ikie, F.O.Green, J.M.[ALSinhibiting herbicide seed treatments control Striga hermonthica in ALSmodified corn (zea mays)]ALSinhibiting herbicide seed treatments control Striga hermonthica in ALSmodified corn (zea mays)

Throughout the lowland humid tropics, unpredictable periods of non-protracted drought are responsible for significant reductions in maize (Zea mays L.) yield, and losses may be disastrously large if drought coincides with the period around flowering. This study was conducted to develop and evalua...


Fischer, K.S.Edmeades, G.O.Johnson, E.C.[Selection for the improvement of maize yield under moisture deficits]Selection for the improvement of maize yield under moisture deficits

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