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The moist savannas of West and Central Africa have great potential for maize grain production due to high levels of radiation and reduced incidence of pests and diseases. However, soils in this zone are generally low in organic matter and cation exchange capacity in addition to land use intensifi...


Ajala, S.O.Menkir, A.Kamara, A.Y.Alabi, S.O.Abdulai, M.S.[Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa]Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa

The Guinea savannas of Nigeria have a high potential for the production of maize because of favorable environmental conditions. Despite this high potential, the yields obtained under farmers' conditions are still very low. Low soil fertility and intermittent drought are among major constraints li...


Kamara, A.Y.Menkir, A.Omoigui, L.O.Kureh, I.[Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas]Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas

The effects of nitrogen (N) rate and weed interference on the grain yield of four corn genotypes were investigated in 2002 and 2003 at Ikenne (7u389N, 3u429E), Shika (11u119N, 7u389E), and Samaru (10u249N, 7u429E) in Nigeria. Nitrogen (N) at 0, 30, 60, and 90 kg N ha21 were the main plot treatmen...


Chikoye, D.Lum, A.F.Abaidoo, R.C.Menkir, A.Kamara, A.Ekeleme, F.Sanginga, Nteranya[Response of corn genotypes to weed interference and nitrogen in Nigeria]Response of corn genotypes to weed interference and nitrogen in Nigeria
Menkir, A.Pixley, K.Maziya-Dixon, B.B.Gedil, M.[Recent advances in breeding maize for enhanced pro-vitamin A content]Recent advances in breeding maize for enhanced pro-vitamin A content

Poor soil fertility and recurrent drought are major constriants to maize production in the West Africa savanna. The development of maize cultivars with superior rooting system to absorb nitrogen and water efficiently from the soil is desirable. However, direct measurement of root characteristics ...


Kamara, A.Kling, J.Ajala, S.Menkir, A.[Vertical rootpulling resistance in maize is related to nitrogen uptake and yield]Vertical rootpulling resistance in maize is related to nitrogen uptake and yield

Striga hermonthica is a parasitic weed that attacks maize, sorghum and other staple cereal crops and has long been considered one of the greatest biotic constraints to cereal production in Africa. Use of resistant or tolerant maize varieties, a maize–legume rotation using trap crops that stimulat...


Kamara, A.Y.Ellis-Jones, J.Amaza, P.Omoigui, L.O.Helsen, J.Dugje, I.Y.Kamai, N.Menkir, A.White, R.W.[A participatory approach to increasing productivity of maize through Striga hermonthica control in Northeast Nigeria]A participatory approach to increasing productivity of maize through Striga hermonthica control in Northeast Nigeria

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