Maize improvement at the International Institute of Tropical Agriculture (IITA), which began in the 1970s, built on the germplasm and experience of earlier years. The main breeding emphasis was to develop maize cultivars and hybrids with high yield potential and durable resistance to diseases and...
Kamara, A.Y.
,
Menkir, A.
,
Fakorede, M.A.B.
,
Ajala, S.O.
,
Badu-Apraku, B.
,
Kureh, I.
,
[Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa]
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Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa
The results are presented of a project to promote integrated Striga control (ISC) technologies to farmers in the Guinea savanna of northern Nigeria. Extension agents used a participatory research and extension approach (PREA) to encourage farmers to test and adopt ISC technologies. Over a 2-year ...
Franke, A.
,
Ellis-Jones, J.
,
Tarawali, G.
,
Schulz, S.
,
Hussaini, M.A.
,
Kureh, I.
,
White, R.
,
Douthwaite, Boru
,
Oyewole, B.
,
Olanrewaju, A.S.
,
[Evaluating and scalingup integrated Striga hermonthica control technologies among farmers in northern Nigeria]
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Evaluating and scalingup integrated Striga hermonthica control technologies among farmers in northern Nigeria
Integrated soil management with grain legumes was studied at two villages (Ugwan Shamaki) and Tashan Kaya) in Kaduna State, northern Guinea Savanna zone of Nigeria (190 day growing season). Impacts of one year rotation of Soybean and Cowpea on soil chemical properties were compared with sole maiz...
Tarfa, B.
,
Kureh, I.
,
Kamara, A.
,
Maigida, D.
,
[Influence of cereal legume rotation on soil chemical properties, crop yield and Striga control]
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Influence of cereal legume rotation on soil chemical properties, crop yield and Striga control
The Guinea savannas of Nigeria have a high potential for the production of maize because of favourable environmental conditions. Despite this high potential, the yields obtained in farmers' fields are still very low. This is due to soil degradation and nutrient depletion arising from intensificat...
Kamara, A.
,
Menkir, A.
,
Ajala, S.O.
,
Kureh, I.
,
[Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria]
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Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria
Maize is an important food crop in the Guinea savannas of Nigeria where it is gradually replacing the traditional cereal crops, such as sorghum and millet because of its high productivity. Despite its high yield potential, maize production is faced with numerous constraints. One of these Is droug...
Kamara, A.
,
Kureh, I.
,
Menkir, A.
,
Kartung, P.
,
Tarfa, B.
,
Amaza, P.
,
[Participatory onfarm evaluation of the performance of droughttolerant maize varieties in the Guinea Savannas of Nigeria]
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Participatory onfarm evaluation of the performance of droughttolerant maize varieties in the Guinea Savannas of Nigeria
Poor soil fertility, especially with low levels of nitrogen (N), is a major constraint to productivity and the production of maize in the Guinea Savanna of Nigeria. To improve efficiency of the maize to use N in the Savanna, maize genotypes with improved root systems to exploit the available N fr...
Kamara, A.Y.
,
Menkir, A.
,
Kureh, I.
,
Omoigui, L.O.
,
[Response to low soil nitrogen stress of S1 maize breeding lines selected for high vertical rootpulling resistance]
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Response to low soil nitrogen stress of S1 maize breeding lines selected for high vertical rootpulling resistance
Field studies were conducted in 1995 and 1996 in the northern Guinea savanna of Nigeria to determine the response of 22 soybean genotypes to Alectra infestation. Significant differences were observed amongst soybean genotypes in number of Alectra shoots that emerged at 9 and 10 weeks after sowing...
Kureh, I.
,
Alabi, S.
,
Kamara, A.
,
[Response of soybean genotypes to Alectra vogelii infestation under natural field conditions]
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Response of soybean genotypes to Alectra vogelii infestation under natural field conditions
On-farm trials were conducted in 2001, 2002, and 2003 in the northern Guinea savanna of Nigeria to evaluate integrated Striga hermonthica control measures under farmermanaged conditions. These included intercropping a Striga-resistant maize variety with cowpea for 3 years and also cropping this m...
Kureh, I.
,
Kamara, A.Y.
,
Tarfa, B.D.
,
[Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria]
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Influence of cereal legume rotation on Striga control and maize grain yield in farmers fields in the northern Guinea Savanna of Nigeria
The parasitic angiosperms, Striga hermonthica and S. gesnerioides, obligate root parasites endemic in sub-Saharan Africa, constitute severe constraints to cereal and legume production in West and Central Africa. Over the years, a range of effective component technologies has been identified for S...
Emechebe, A.M.
,
Ellis-Jones, J.
,
Schulz, S.
,
Chikoye, D.
,
Douthwaite, Boru
,
Kureh, I.
,
Tarawali, G.
,
Hussaini, M.A.
,
Kormawa, P.M.
,
Sanni, A.
,
[Farmer perception of the Striga problem and its control in northern Nigeria]
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Farmer perception of the Striga problem and its control in northern Nigeria
Genetic improvement of maize hybrids for superior stress tolerance has contributed to increased yield by allowing hybrids to be planted at higher plant populations. This study was conducted to evaluate the response of maize hybrids developed in the Nigerian Savanna from different eras to high pla...
Kamara, A.
,
Menkir, A.
,
Kureh, I.
,
Omoigui, L.
,
Ekeleme, F.
,
[Performance of old and new maize hybrids at high plant densities in the tropical Guinea Savanna]
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Performance of old and new maize hybrids at high plant densities in the tropical Guinea Savanna