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Journal Article 2016

Autor: Kamara, A. Tofa, A.I. Kyei-Boahen, S. Solomon, R. Ajeigbe, Hakeem A. Kamai, N.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/77611

Investigación en Agricultura
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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
Journal Article 2011-04

Autor: Kamara, A.Y. Omoigui, L.O. Ewansiha, S.U. Ekeleme, F. Chikoye, D. Ajeigbe, Hakeem A.

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,...

Enlace original: https://cgspace.cgiar.org/handle/10568/88155

Investigación en Agricultura
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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
Journal Article 2006

Autor: Ajeigbe, Hakeem A. Singh, B.B.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/91376

Investigación en Agricultura
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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
Journal Article 2006

Autor: Singh, B. Adeleke, R. Ajeigbe, Hakeem A. Olufajo, O. Ishiyaku, M. Mohammed, S.
Enlace original: https://cgspace.cgiar.org/handle/10568/91750

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Singh, B. ,  Adeleke, R. ,  Ajeigbe, Hakeem A. ,  Olufajo, O. ,  Ishiyaku, M. ,  Mohammed, S. ,  [Registration of six improved germplasm lines of cowpea with combined resistance to Striga gesnerioides and Alectra vogelii] ,  Registration of six improved germplasm lines of cowpea with combined resistance to Striga gesnerioides and Alectra vogelii
Journal Article 2017

Autor: Kamara, A.Y. Ewansiha, S.U. Ajeigbe, Hakeem A. Omoigui, L.O. Tofa, A.I. Karim, K.Y.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/83014

Investigación en Agricultura
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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] ,  Agronomic evaluation of cowpea cultivars developed for the West African Savannas
Journal Article 2006

Autor: Singh, B. Adeleke, R. Ajeigbe, Hakeem A. Olufajo, O. Ishiyaku, M. Mohammed, S.
Enlace original: https://cgspace.cgiar.org/handle/10568/91749

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Singh, B. ,  Adeleke, R. ,  Ajeigbe, Hakeem A. ,  Olufajo, O. ,  Ishiyaku, M. ,  Mohammed, S. ,  [Registration of NGVU0525 cowpea cultivar] ,  Registration of NGVU0525 cowpea cultivar
Journal Article 2010-04

Autor: Babaji, B.A. Yahaya, R.A. Mahadi, M.A. Jaliya, M.M. Ajeigbe, Hakeem A. Sharifai, A.I. Kura, H.N. Arunah, O.L. Ibrahim, A.

Field experiments were conducted in 2005 and 2006 rainy season at the Institute for Agricultural Research farm, Samaru, Nigeria, to test the response of four cowpea [Vigna unguiculata (L) Walp] varieties to residual effect of four rates of sheep manure (FYM) (0, 5, 10 and 15 t/ha) applied the pre...

Enlace original: https://cgspace.cgiar.org/handle/10568/87967

Investigación en Agricultura
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Babaji, B.A. ,  Yahaya, R.A. ,  Mahadi, M.A. ,  Jaliya, M.M. ,  Ajeigbe, Hakeem A. ,  Sharifai, A.I. ,  Kura, H.N. ,  Arunah, O.L. ,  Ibrahim, A. ,  [Response of cowpea [Vigna unguiculata (L) Walp] to residual effect of different application rates of sheep manure on chilli pepper (Capsicum annuum)] ,  Response of cowpea [Vigna unguiculata (L) Walp] to residual effect of different application rates of sheep manure on chilli pepper (Capsicum annuum)
Journal Article 2011-09

Autor: Kamara, A.Y. Tefera, H. Ewansiha, S.U. Ajeigbe, Hakeem A. Okechukwu, R.U. Boukar, O. Omoigui, L.O.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/82675

Investigación en Agricultura
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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] ,  Genetic gain in yield and agronomic characteristics of cowpea cultivars developed in the Sudan savannas of Nigeria over the past three decades
Journal Article 2017-11

Autor: Omoigui, L.O. Kamara, A.Y. Ajeigbe, Hakeem A. Akinwale, R.O. Timko, M.P. Oyekunle, M. Bello, L.L.

Striga gesnerioides (Willd) Vatke, is a major destructive parasitic weed of cowpea (Vigna unguiculata (L.) Walp.) which causes substantial yield reduction in West and Central Africa. The presence of different virulent races within the parasite population contributes to significant genotype × envi...

Enlace original: https://cgspace.cgiar.org/handle/10568/89081

Investigación en Agricultura
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Omoigui, L.O. ,  Kamara, A.Y. ,  Ajeigbe, Hakeem A. ,  Akinwale, R.O. ,  Timko, M.P. ,  Oyekunle, M. ,  Bello, L.L. ,  [Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis] ,  Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis
Journal Article 2008-10

Autor: Ajeigbe, Hakeem A. Singh, B.B. Emechebe, A.M.

The average productivity of cowpea in the existing traditional systems is low due to a complex of biotic and abiotic stresses. The biotic factors include insect pests, parasitic plants, and viral, fungal and bacterial diseases. Concerted efforts are being made to develop improved cowpea varieties...

Enlace original: https://cgspace.cgiar.org/handle/10568/90808

Investigación en Agricultura
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Ajeigbe, Hakeem A. ,  Singh, B.B. ,  Emechebe, A.M. ,  [Field evaluation of improved cowpea lines for resistance to bacterial blight, virus and striga under natural infestation in the West African savannas] ,  Field evaluation of improved cowpea lines for resistance to bacterial blight, virus and striga under natural infestation in the West African savannas

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