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.
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Menkir, A.
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Fakorede, M.A.B.
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Ajala, S.O.
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Badu-Apraku, B.
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Kureh, I.
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[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
Cowpea is a major food and cash crop in northern Nigeria, providing nutritious grain and a less expensive source of protein for both the rural poor and urban consumers. A number of improved varieties have been developed combining diverse plant type, and different maturity periods, with resistance...
Kamara, A.Y.
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Omoigui, L.O.
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Ewansiha, S.U.
,
[Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties]
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Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties
Recurrent selection under artificial S. hermonthica infestation has significantly reduced the number of emerged Striga plants and increased grain yield under Striga infestation in broad-based populations. These populations have been sources of varieties and inbred lines with consistently high lev...
Menkir, A.
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Badu-Apraku, B.
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Yallou, C.G.
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Kamara, A.Y.
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Ejeta, G.
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[Breeding maize for broad-based resistance to striga hermonthica]
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Breeding maize for broad-based resistance to striga hermonthica
CERES-Maize model was used to determine nitrogen fertilizer requirements of early maturing maize varieties in the Sudan Savanna. Data were collected from 2013 and 2014 field experiments conducted in BUK Nigeria. The experiments consisted of 3 nitrogen fertilizer levels (0, 60, and 120 Kg N ha−1) ...
Adnan, A.A.
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Jibrin, J.M.
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Kamara, A.Y.
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Abdulrahman, B.L.
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Shaibu, A.S.
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[Using ceres-maize model to determine the nitrogen fertilization requirements of early maturing maize in the sudan savanna of Nigeria]
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Using ceres-maize model to determine the nitrogen fertilization requirements of early maturing maize in the sudan savanna of Nigeria
Sorghum (Sorghum bicolor [L.] Moench) is one of the most important cereal crops grown in the dry savannas and semi-arid regions of West Africa under rain-fed conditions. Although total sorghum production in Nigeria has increased over the years, the average grain yield on farmers' fields has remai...
Kamara, A.Y.
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Ekeleme, F.
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Omoigui, L.O.
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Menkir, A.
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Chikoye, D.
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Dugje, I.Y.
,
[Response of exotic sorghum (Sorghum bicolor [L.] Moench) cultivars to planting date under natural infestation of Striga hermonthica (Del) Benth. in the Sudan savanna zone of northeast Nigeria]
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Response of exotic sorghum (Sorghum bicolor [L.] Moench) cultivars to planting date under natural infestation of Striga hermonthica (Del) Benth. in the Sudan savanna zone of northeast Nigeria
A field study was conducted to determine the rate of genetic improvement in grain and fodder yields and associated agronomic and physiological changes of determinate and semideterminate cowpea [Vigna unguiculata (L.) Walp.] genotypes developed in the Nigerian Sudan savannas in 1974 to 2004. Resul...
Kamara, A.Y.
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Tefera, H.
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Ewansiha, S.U.
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Ajeigbe, Hakeem A.
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Okechukwu, R.U.
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Boukar, O.
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Omoigui, L.O.
,
[Genetic gain in yield and agronomic characteristics of cowpea cultivars developed in the Sudan savannas of Nigeria over the past three decades]
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Genetic gain in yield and agronomic characteristics of cowpea cultivars developed in the Sudan savannas of Nigeria over the past three decades