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Recent surge in dry cowpea seed price, grain and fodder demand in Niger Republic has resulted in the search for appropriate cultivars for dry season production for seed, grain, and fodder. However in addition to the common constraints to cowpea production in the wet season, high temperature in th...


Saidou, A.K.Ajeigbe, Hakeem A.Hide, O.Satoshi, T.Singh, B.B.[Potentials of cowpea (Vigna unguiculata) for dry season seed and fodder production in Sahelian sandy soil of Niger]Potentials of cowpea (Vigna unguiculata) for dry season seed and fodder production in Sahelian sandy soil of Niger

Grain yields of cowpea [Vigna unguiculata (L.) Walp.] in the Nigerian savannas are low even with the cultivation of improved varieties. The recommended spacing for cowpea is 75 × 20 cm with two seeds planted per stand. This corresponds to plant population of 133333 plants ha−1, which may not be s...


Kamara, A.Tofa, A.I.Kyei-Boahen, S.Solomon, R.Ajeigbe, Hakeem A.Kamai, N.[Effects of plant density on the performance of cowpea in Nigerian Savannas]Effects of plant density on the performance of cowpea in Nigerian Savannas

Spatial arrangement of crops is critical in determining the growth and yield of lower crops in intercropping. The productivity of two spatial arrangements of pearl millet-groundnut intercrops was studied in the Sudan savanna of Nigeria during 2014 rainy season at Wasai (5ˈN, 08o62ˈE) in Minjibir ...


Aliyu, K.T.Ajeigbe, Hakeem A.Mohammed, I.B.[Performance of groundnut genotypes under millet based intercropping systems in Sudan Savanna of Nigeria]Performance of groundnut genotypes under millet based intercropping systems in Sudan Savanna of Nigeria

Soybean (Glycine max) is a major cash crop in the savannas of Nigeria although productivity is typically constrained by poor soil fertility. The objective of this research was to determine the interactive effect of N and P on soybean productivity in the northern Guinea and Sudan savannas of north...


Kamara, A.Y.Ekeleme, F.Omoigui, L.O.Ajeigbe, Hakeem A.[Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna]Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna

Field trials were conducted in 2005 and 2006 in Tilla (northern Guinea savanna) and Sabon-Gari (Sudan savanna) in northeast Nigeria to determine the performance of two improved cowpea varieties when relay-intercropped with early and late maize, 6 and 8 weeks after planting the maize. Grain yield,...


Kamara, A.Y.Omoigui, L.O.Ewansiha, S.U.Ekeleme, F.Chikoye, D.Ajeigbe, Hakeem A.[Performance of semideterminate and indeterminate cowpeas relaycropped into maize in Northeast Nigeria]Performance of semideterminate and indeterminate cowpeas relaycropped into maize in Northeast Nigeria

Identification of the best variety from a variety trial is often done using the least significant difference (LSD), Duncan’s multiple range test (DMRT) and stability analysis methods. However, these methods are unable to discriminate among a smaller group of varieties which are not statistically ...


Ajeigbe, Hakeem A.Mohammed, S.Singh, B.[Comparative assessment of yield potentials of improved cowpea breeding lines using performance index and ranking methods]Comparative assessment of yield potentials of improved cowpea breeding lines using performance index and ranking methods

Cowpeas suffer major yield losses due to insect pests, so insect resistant cowpea varieties are being developed to minimize insecticide use in integrated pest management. Experiments during the cropping seasons of 2002–2004 at Kano, Nigeria, evaluated four cowpea varieties and five combinations o...


Ajeigbe, Hakeem A.Singh, B.B.[Integrated pest management in cowpea: effect of time and frequency of insecticide application on productivity]Integrated pest management in cowpea: effect of time and frequency of insecticide application on productivity

A cropping system trial involving two spray regimes, two cowpea varieties and ten cowpea-cereals ptanting pattems involving two cereals was conducted in the wet season in the nohhem Guinea Savanna of Nigeria in 1999 and 2000 to identi$ suitable row to row planting arrangement for cowpea-cereal sy...


Ajeigbe, Hakeem A.Oseni, T.Singh, B.[Effect of planting pattern, crop variety and insecticide on the productivity of cowpeacereal systems in Northern Guinea Savanna of Nigeria]Effect of planting pattern, crop variety and insecticide on the productivity of cowpeacereal systems in Northern Guinea Savanna of Nigeria

Breeding for resistance to Striga can be done effectively under high and uniform artificial field infestation. To identify Striga tolerantresistant maize genotypes, it is essential to artificially inoculate every hill of maize in the breeding nursery with Striga seeds. The present method of inocu...


Ibikunle, O.A.Menkir, A.Kamara, A.Y.Ajeigbe, Hakeem A.Smith, M.A.[Evaluation of artificial field infestation techniques with Striga Hermonthica for resistance screening in maize (Zea mays L.)]Evaluation of artificial field infestation techniques with Striga Hermonthica for resistance screening in maize (Zea mays L.)

Climate variability and change will have far reaching consequences for smallholder farmers in sub-Saharan Africa, the majority of whom depend on agriculture for their livelihoods. Crop modelling can help inform the improvement of agricultural productivity under future climate. This study applies ...


Akinseye, Folorunso MAjeigbe, Hakeem A.Traoré, Pierre SibiryAgele, Samuel OZemadim, BirhanuWhitbread, Anthony M.[Improving sorghum productivity under changing climatic conditions: A modelling approach]Improving sorghum productivity under changing climatic conditions: A modelling approach

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