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Journal Article 2012-10

Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria

Autor: Kamara, A. Ewansiha, S.U. Ajeigbe, Hakeem A. Omoigui, L.O.

Insect pests are major constraint to cowpea production in northern Nigeria causing yield losses up to 70%. Several cowpea varieties have been developed and delivered to farmers by IITA over the past four decades. These varieties have varying degrees of resistance to insect pest attacks. A field s...

Enlace original: https://cgspace.cgiar.org/handle/10568/79816

Investigación en Agricultura

COWPEAS

VARIETIES

SAVANNA

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Kamara, A. , Ewansiha, S.U. , Ajeigbe, Hakeem A. , Omoigui, L.O. , [Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria] , Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria

Journal Article 2012-03

A success tale on improving two legume crops in Africa

Autor: Boukar, O. Abdoulaye, Tahirou Tamo, M. Agrama, H. Tefera, H. Fatokun, C.A. Boahen, S.

Enlace original: https://cgspace.cgiar.org/handle/10568/77452

Investigación en Agricultura

COWPEAS

SOYBEANS

LIVESTOCK

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Boukar, O. , Abdoulaye, Tahirou , Tamo, M. , Agrama, H. , Tefera, H. , Fatokun, C.A. , Boahen, S. , [A success tale on improving two legume crops in Africa] , A success tale on improving two legume crops in Africa

Journal Article 2001-06

Inferences on pod wall and seed defenses against the brown cowpea coreid bug, Clavigralla tometosicollis Stal ( Hempptera Coreidae) in wild and cultivated Vigna species

Autor: Jackai, L.E.N. Nokoe, S. Tayo, B.O. Koona, P.

Studies were conducted in the laboratory to investigate the different components of the resistance of Vigna vexillata A. Richards, TVnu 72, and several cultivars of cultivated Vigna spp. to infestation and damage by the brown cowpea coreid, Clavigralla tomentosicollis Stäl. The main objective was...

Enlace original: https://cgspace.cgiar.org/handle/10568/96908

Investigación en Agricultura

VIGNA VEXILLATA

COWPEAS

PESTS

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Jackai, L.E.N. , Nokoe, S. , Tayo, B.O. , Koona, P. , [Inferences on pod wall and seed defenses against the brown cowpea coreid bug, Clavigralla tometosicollis Stal ( Hempptera Coreidae) in wild and cultivated Vigna species] , Inferences on pod wall and seed defenses against the brown cowpea coreid bug, Clavigralla tometosicollis Stal ( Hempptera Coreidae) in wild and cultivated Vigna species

Journal Article 2002

Securing the harvest: biotechnology, breeding, and seed systems for African crops

Autor: Ortiz, R. Vries, J. de Toenniessen, G.

Enlace original: https://cgspace.cgiar.org/handle/10568/92741

Investigación en Agricultura

BREEDING

BIOTECHNOLOGY

CASSAVA

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Ortiz, R. , Vries, J. de , Toenniessen, G. , [Securing the harvest: biotechnology, breeding, and seed systems for African crops] , Securing the harvest: biotechnology, breeding, and seed systems for African crops

Journal Article 2018-02-27

Farmers’ Willingness to Pay for Climate Information Services: Evidence from Cowpea and Sesame Producers in Northern Burkina Faso

Autor: Ouédraogo, Mathieu Barry, Silamana Zougmoré, Robert B. Partey, Samuel T. Somé, Léopold Baki, Gregoire

Climate information is recognized as a powerful tool to reduce the effect of climate risk and uncertainty on crop production and increase the resilience and the adaptive capacity of farmers in semi-arid zones. This paper estimates farmers’ willingness to pay (WTP) for climate information within c...

Enlace original: https://cgspace.cgiar.org/handle/10568/91212

Investigación en Agricultura

CLIMATE CHANGE

AGRICULTURE

FOOD SECURITY

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Ouédraogo, Mathieu , Barry, Silamana , Zougmoré, Robert B. , Partey, Samuel T. , Somé, Léopold , Baki, Gregoire , [Farmers’ Willingness to Pay for Climate Information Services: Evidence from Cowpea and Sesame Producers in Northern Burkina Faso] , Farmers’ Willingness to Pay for Climate Information Services: Evidence from Cowpea and Sesame Producers in Northern Burkina Faso

Journal Article 2007-08

Farm-scale trials to compare the entomopathogenic fungus Beauveria bassiana with pirimiphos methy + deltamethrin and essential oil of lemon grass for protection of stored cowpea against Callosobruchus maculatus (Coleoptera: Bruchidae)

Autor: Cherry, A.J. Abalo, P. Hell, K. Korie, S.

In trials conducted in Benin, conidia of Beauveria bassiana were evaluated as a control method against the cowpea weevil, Callosobruchus maculatus, in stored cowpea. In the first trial using a high artificial infestation of C. maculatus in 8-kg batches of cowpea in jerry cans under typical condit...

Enlace original: https://cgspace.cgiar.org/handle/10568/92932

Investigación en Agricultura

BEAUVERIA BASSIANA

BIOLOGICAL CONTROL

CALLOSOBRUCHUS MACULATUS

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Cherry, A.J. , Abalo, P. , Hell, K. , Korie, S. , [Farm-scale trials to compare the entomopathogenic fungus Beauveria bassiana with pirimiphos methy + deltamethrin and essential oil of lemon grass for protection of stored cowpea against Callosobruchus maculatus (Coleoptera: Bruchidae)] , Farm-scale trials to compare the entomopathogenic fungus Beauveria bassiana with pirimiphos methy + deltamethrin and essential oil of lemon grass for protection of stored cowpea against Callosobruchus maculatus (Coleoptera: Bruchidae)

Journal Article 2018-03-07

Groundnut (Arachis hypogaea L.) and cowpea (Vigna unguiculata L. Walp) growing in Ethiopia are nodulated by diverse rhizobia

Autor: Degefu, Tulu Woldemeskel, Endalkachew Ataro, Zikie Fikre, Asnake Amede, Tilahun Ojiewo, Chris

Enlace original: https://cgspace.cgiar.org/handle/10568/98583

Investigación en Agricultura

GROUNDNUTS

COWPEAS

BRADYRHIZOBIUM

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Degefu, Tulu , Woldemeskel, Endalkachew , Ataro, Zikie , Fikre, Asnake , Amede, Tilahun , Ojiewo, Chris , [Groundnut (Arachis hypogaea L.) and cowpea (Vigna unguiculata L. Walp) growing in Ethiopia are nodulated by diverse rhizobia] , Groundnut (Arachis hypogaea L.) and cowpea (Vigna unguiculata L. Walp) growing in Ethiopia are nodulated by diverse rhizobia

Journal Article 1999

Integrated soil management for the dry savanna zone of West Africa: legume rotation and fertilizer N

Autor: Carsky, R.J. Oyewole, B. Tian, G.

Integrated soil management with leguminous cover crops was studied at two sites in the northern Guinea savanna zone of northern Nigeria, Kaduna (190 day growing season) and Bauchi (150 days). One-year planted fallows of mucuna, lablab, and crotalaria were compared with natural grass fallow and co...

Enlace original: https://cgspace.cgiar.org/handle/10568/95937

Investigación en Agricultura

COVER CROPS

SAVANNA

FERTILIZERS

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Carsky, R.J. , Oyewole, B. , Tian, G. , [Integrated soil management for the dry savanna zone of West Africa: legume rotation and fertilizer N] , Integrated soil management for the dry savanna zone of West Africa: legume rotation and fertilizer N

Journal Article 2005-08

Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa

Autor: Hanna, R. Onzo, A. Lingeman, R. Yaninek, John S. Sabelis, M.W.

We applied time series analysis and a mechanistic predator-prey model to long-term data of monthly population counts of the herbivorous pest mite Mononychellus tanajoa and its introduced phytoseiid predator Typhlodromalus aripo from a cassava field in Benin, West Africa. In this approach, we dete...

Enlace original: https://cgspace.cgiar.org/handle/10568/95968

Investigación en Agricultura

BIOLOGICAL CONTROL

CASSAVA

PREDATORS

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Hanna, R. , Onzo, A. , Lingeman, R. , Yaninek, John S. , Sabelis, M.W. , [Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa] , Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa

Journal Article 1997

Leaf appearance in cowpea: effects of temperature and photoperiod

Autor: Craufurd, Peter Q. Subedi, M. Summerfield, R.

Leaf appearance in crop plants is an important process involved in canopy development. The environmental control of leaf appearance has not been studied in cowpea [Vigna unguiculata (L.) Walp.]. This study was conducted to determine whether photoperiod has any effect on the rate of leaf appearanc...

Enlace original: https://cgspace.cgiar.org/handle/10568/95994

Investigación en Agricultura

COWPEAS

GENOTYPES

TEMPERATURE

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Craufurd, Peter Q. , Subedi, M. , Summerfield, R. , [Leaf appearance in cowpea: effects of temperature and photoperiod] , Leaf appearance in cowpea: effects of temperature and photoperiod

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