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
A number of improved varieties have been developed by the International Institute of Tropical Agriculture (IITA), combining diverse plant type with resistance or tolerance to several diseases, insect pests, and parasitic weeds and possessing other good agronomic traits. Trials were established wi...
Kamara, A.Y.
,
Ellis-Jones, J.
,
Ekeleme, F.
,
Omoigui, L.O.
,
Amaza, P.
,
Chikoye, D.
,
Dugje, I.Y.
,
[A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria]
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A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria
The goal of this research was to evaluate diverse cowpea genotypes developed over the past 4 decades in the Nigerian
Sudan Savannas for their agronomic performance and to identify groups of cultivars with similar quantitative characters.
Characterization would facilitate the efficient synthesis o...
Kamara, A.Y.
,
Ewansiha, S.U.
,
Ajeigbe, Hakeem A.
,
Omoigui, L.O.
,
Tofa, A.I.
,
Karim, K.Y.
,
[Agronomic evaluation of cowpea cultivars developed for the West African Savannas]
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Agronomic evaluation of cowpea cultivars developed for the West African Savannas
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.
,
Tefera, H.
,
Ewansiha, S.U.
,
Ajeigbe, Hakeem A.
,
Okechukwu, R.U.
,
Boukar, O.
,
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
Cowpea is an important food legume and versatile crop in the savannas of northeast Nigeria. Despite the high potential for production in this region, insect pests are a major constraint. A study was conducted to evaluate the response of diverse cowpea genotypes to different schedules of spraying ...
Kamara, A.Y.
,
Chikoye, D.
,
Omoigui, L.O.
,
Dugje, I.Y.
,
[Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria]
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Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria