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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

This paper applies econometric analyses to quantitatively determine the individual risk attitudes of sampled maize farmers in the dry savanna zone of Nigeria. The extent of the risk attitudes are then made the basis for categorizing the farmers into three groups of low, intermediate and high risk...


Olarinde, L.O.Manyong, Victor M.Akintola, J.O.[Attitudes towards risk among maize farmers in the dry savanna zone of Nigeria: some prospective policies for improving food production]Attitudes towards risk among maize farmers in the dry savanna zone of Nigeria: some prospective policies for improving food production

Eighty and sixty maize fields were sampled in 1994 and 1995, respectively, to monitor Aspergillus infection and aflatoxin contamination of preharvest maize in Benin. Three Aspergillus species were isolated from different agroecological zones, with A. flavus being the most prevalent. The countrywi...


Setamou, M.Cardwell, K.Schulthess, F.Hell, K.[Aspergillus flavus infection and aflatoxin contamination of preharvest maize in the Republic of Benin]Aspergillus flavus infection and aflatoxin contamination of preharvest maize in the Republic of Benin
Ortiz, R.Austin, P.D.Vuylsteke, D.R.[IITA High Rainfall Station: twenty years of research for sustainable agriculture in the West African humid forest]IITA High Rainfall Station: twenty years of research for sustainable agriculture in the West African humid forest

A parasitic plant, Striga hermonthica (Del.) Benth., infests millions of hectares of arable land in sub-Saharan Africa, and it threatens production of major cereal crops including maize (Zea mays L.). Erratic natural infestation is considered a major constraint to assess host plant resistance to ...


Kim, S.K.Adetimirin, V.O.[Striga hermonthica seed inoculum rate effects on maize hybrid tolerance and susceptibility expression]Striga hermonthica seed inoculum rate effects on maize hybrid tolerance and susceptibility expression
Autor: Ezumah, H.C.

Five maize genotypes differing in plant habit and growth period were evaluated at 5 population densities (10, 20, 40, 80 and 160 × 103 plants/ha) under an intercropping system with cassava at 1 × 1 or 1 × 0.67 m spacings in a tropical Alfisol in southern Nigeria. The 2-year study revealed signifi...


Ezumah, H.C.[Maize (Zea mays) genotypes for intercroping with cassava (Manihot esculenta) in southern Nigeria; 1: yield responses]Maize (Zea mays) genotypes for intercroping with cassava (Manihot esculenta) in southern Nigeria; 1: yield responses

The palaeotropical, gregarious, endoparasitic braconids Cotesia sesamiae, Cotesia flavipes and Cotesia chilonis were recently imported into Benin as candidates for biological control of stem and cob borers of maize. Host acceptability and host suitability of six gramineous borers occurring in wes...


Hailemichael, Y.Schulthess, F.Smith, W.Overholt, W.A.[Suitability of West African gramineous stemborers for the development of Cotesia species (Hymenoptera: Brachonidae)]Suitability of West African gramineous stemborers for the development of Cotesia species (Hymenoptera: Brachonidae)

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