Titles (59)Keywords (2)Notes (1)Abstracts (1)
A farming systems approach to the transfer of improved cowpea varieties, Ashraf, M., International Institute of Tropical Agriculture (IITA), 1984.
 
Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria, Manda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Kamara, A., Olufajo, O.*, Boukar, O. and Manyong, V., in: Journal of Agricultural Economics, pages 1-19, ISSN 0021-857X, 2019. [DOI]
 
Adoption of improved cowpea varieties in northern Nigeria: a discourse of the social processes involved, Tipilda, A., Manyong, V., Alene, A. and Singh, B., in: Comparative Social Science Congress on Technology and Risk: Social Assessment. July, Oslo, Norway : proceedings, 2005.
 
Breeding a range of cowpea varieties for different cropping systems and use patterns in the tropics: an overview, Singh, B., in: The 4th World Cowpea Conference, Durban, South Africa, April 17-22, N/A, 2005.
 
Breeding cowpea varieties for resistance to multiple strains of Striga gesnerioides, Singh, B. and Adeleke, R., pages 71, American Society of Agronomy, 1996.
 
Breeding cowpea varieties for resistance to Striga gesnerioides and Alectra vogelii, Singh, B., pages 154-163, 2002.
 
Breeding cowpea varieties for wide adaptation, Singh, B., pages 70-71, 1985.
 
Breeding cowpea varieties with combined different strains of Striga gesnerioides, Singh, B., in: Breeding for Striga resistance in cereals: proceedings of a workshop held at IITA, Ibadan, Nigeria, 16-20 August 1999. Weikersheim, Germany: Margraf Verlag, pages 261-270, 2000.
 
Breeding cowpea varieties with combined resistance to Striga gesnerioides and Alectra vogelii, Singh, B., in: Third International Crop Science Congress Book of Abstracts. Gressen, Germany: European Society of Agronomy, pages 135, 2000.
 
Breeding grain type and dual-purpose cowpea varieties for intensifying cereal-legume systems in the tropics, Singh, B. and Ajeigbe, H., in: the ASA Annual Meeting, 2004, Seattle, USA, 2004.
 
Breeding improved cowpea varieties for different cropping systems and agroecologies in West Africa, Singh, B. and Ajeigbe, H., pages 96, 2001.
 
Characteristics of farmers' selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso, Ishikawa, H., Drabo, I.*, Joseph, B. B.*, Muranaka, S., Fatokun, C. and Boukar, O., in: Experimental Agriculture, pages 2-10, ISSN 0014-4799, 2019. [DOI]
 
Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso, Ishikawa, H., Drabo, I.*, Boukar, O., Fatokun, C. and Muranaka, S., in: JARQ - Japan Agricultural Research Quarterly, volume 53, number 3, pages 159-167, ISSN 0021-3551, 2019.
 
Comparative investigation of farmer's criteria for cowpea varieties via farmers' participatory varietal selection in Niger and Burkina Faso, Ishikawa, H., Drabo, I.*, Fatokun, C., Boukar, O. and Muranaka, S., Abstract, p. 95 in the book of abstracts, Tropetang 2016, "Solidarity in a competing world-fair use of resources", September 18-21, Vienna, Austria, 2016.
 
Cowpea (Vigna unguiculata (L.) Walp) for food security: an evaluation of end-user traits of improved varieties in Swaziland, Gondwe, T., Alamu, E. O., Mdziniso, P.* and Maziya-Dixon, B., in: Scientific Reports, pages 1-6, ISSN 2045-2322, 2019. [DOI]
 
Cowpea varieties for drought tolerance, Singh, B. and Matsui, T., pages 287-300, 2002.
 
Development of a community-based dissemination scheme for improved cowpea varieties, Ishikawa, H., Drabo, I.*, Fatokun, C., Ousmane, B. and Muranaka, S., Abstract, p. 533 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015.
 
Development of improved cowpea varieties in Africa, Singh, B. and Ntare, B. R., pages 105-116, 1985.
 
Development of improved cowpea varieties suitable for the semi-arid regions of Rwanda, in: Tropical Grain Legume Bulletin, volume 32, pages 130-138, 1986.
 
Development of improved cowpea varieties suitable for the semi-arid regions of Rwanda, Price, M and Balasubramanian, V., in: Tropical Grain Legume Bulletin, volume 32, pages 130-138, 1986.
 
Edits-cowpea: strategic approach to develop value-added cowpea varieties with higher food and nutrition qualities, Muranaka, S., Shono, M., Ishikawa, H., Chien, H., Sakurai, T., Boukar, O. and Takagi, H., Abstract in the book of abstracts p. 103, Pan-African Grain Legume & World Cowpea Conference: sustainable grain legume systems for food income and nutritional security in a rapidly changing climate, 28 February - 4 March, Livingstone, Zambia, 2016.
 
Effect of Tillage on the growth and yield of cowpea varieties in sudan Savanna agroecology of Northern Nigeria, Ewansiha, S. U.*, Udensi, U. E.* and Kamara, A., in: Annual Research & Review in Biology, volume 5, number 3, pages 275-284, ISSN 2347-565X, 2015. [DOI]
 
Endogenous technology adoption and household food security: the case of improved cowpea varieties in northern Nigeria, Alene, A. and Manyong, V., in: Quarterly Journal of International Agriculture, volume 45, number November, pages 211-230, 2006.
 
Estimating impact of improved cowpea and cereal varieties on poverty in Northern Nigeria using a propensity score approach, Binam, J. N.*, Abdoulaye, T., Ajeigbe, H., Olarinde, L.* and Ayedun, B., Abstract (Poster) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010.
 
Evaluation of a novel technique for screening cowpea varieties for resistance to the seed beetle Callosobruchus maculatus, Devereau, A., Jackai, L., Olusegun, T. and Asiwe, A., pages 136-146, 2002.
 
Field performance of improved cowpea varieties under conditions of natural infestation by the parasitic weed Striga gesnerioides, Kamara, A., Chikoye, D., Ekeleme, F., Omoigui, L. and Dugje, I.*, in: International Journal of Pest Management, volume 54, number 3, pages 189-195, ISSN 0967-0874, 2008.
 
Gains from high-yielding varieties with and without complementary technologies: the case of improved cowpea in northern Nigeria, Alene, A. and Manyong, V., in: Journal of Agricultural and Food Economics, volume 2, number 1, pages 1-14, 2007.
 
Improvements in grain and fodder yield of cowpea (Vigna unguiculata) varieties developed in the Sudan savannas of Nigeria over the past four decades, Kamara, A., Ewansiha, S. U., Ajeigbe, H., Okechukwu, R., Tefera, H., Boukar, O. and Omoigui, L.*, in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 179-188, International Institute of Tropical Agriculture (IITA), 2012.
 
Improving the productivities of cowpea-cereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems, Ajeigbe, H., Singh, B., Kamara, A., Chikoye, D., Adamu, R. S.*, Saidou, A.K.* and Adeosun, J. O.*, in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 217-227, International Institute of Tropical Agriculture (IITA), 2012.
 
Improving the productivities of cowpea-cereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems, Ajeigbe, H., Singh, B., Kamara, A., Chikoye, D., Adamu, R. S.*, Saidou, A.K.* and Adeosun, J. O.*, in: Innovative research along the cowpea value chain: Proceedings of the fifth world cowpea conference on improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September-1 October 2010, pages 217-230, IITA, 2012.
 
Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties, Kamara, A., Omoigui, L.* and Ewansiha, S. U., in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 202-211, International Institute of Tropical Agriculture (IITA), Ibadan, 2012.
 
Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties, Kamara, A., Omoigui, L. and Ewansiha, S. U., Abstract (Oral presentaion) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010.
 
In vitro digestibility and methane gas production of fodder from improved cowpea (Vigna unguiculata L.) and groundnut (Arachis hypogaea L.) varieties, Ansah, T.*, Sahoo, A.*, Rahman, N. A., Kumawat, P. K.* and Bhatt, R. S.*, in: Scientific African, volume 13, number -: e00897, pages 1-8, ISSN 2468-2276, 2021. [DOI]
 
Increasing productivity of sorghum-cowpea and millet-cowpea intercrops through improved varieties, Singh, B., Tabo, R., Gupta, S. and Ajeigbe, H., pages 41, American Society of Agronomy, 1997.
 
Integrated management of Striga gesnerioides in cowpea using resistant varieties, improved crop nutrition and rhizobium inoculants, Abdullahi, W. M., Dianda, M., Boukar, O., Dieng, I., Mohammed, G. S.*, Belko, N., Togola, A., Muhammad, H.*, Kanampiu, F., Giller, K. and Vanlauwe, B., in: Plant and Soil, volume 473, pages 197-213, ISSN 0032-079X, 2022. [DOI]
 
Laboratory screening of cowpea varieties for suicidal germination of seeds of Striga hermonthica, Ikie, F., Emechebe, A., Ogunyemi, S., Schulz, S. and Togun, A.*, in: Book of Abstracts of the Fifth Biennial Conference of the African Crop Sceince Society, 21-26 Oct, Lagos, Nigeria, 2001.
 
Nutritional attributes of improved varieties of cowpea (Vigna unguiculta (L.) /Walp.)., Omueti, O.* and Singh, B., in: Human Nutrition: Food Sciences and Nutrition, volume 41F, pages 103-112, 1987.
 
Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis, Omoigui, L., Kamara, A., Ajeigbe, H. A.+, Akinwale, R.*, Timko, M. P. and Oyekunle, M.*, in: Euphytica, volume 213, number 244, pages 1-16, ISSN 0014-2336, 2017. [DOI]
 
Performance of dual purpose cowpea varieties, Paul, C., Singh, B. and Fatokun, C., in: Tropical Grain Legume Bulletin, volume 35, pages 28-34, 1988.
 
Performance of erect growing cowpea (Vigna unguiculata (L.) varieties in Zimbabwe, Naik, D. M., Mukoko, O. Z. and Nleya, T., in: Zimbabwe Journal of Agricultural Research, volume 28, pages 23-32, 1992.
 
Performance of improved cowpea varieties in millet-cowpea intercropping systems with and without insecticide, Singh, B. and Ajeigbe, H., pages 39, American Society of Agronomy, 1996.
 
Phenotyping cowpea for seedling root architecture reveals root phenes important for breeding phosphorus efficient varieties, Mohammed, S. B.*, Burridge, J. D., Ishiyaku, M. F.*, Boukar, O. and Lynch, J. P., in: Crop Science, pages 1-20, ISSN 0011-183X, 2021. [DOI]
 
Physiological responses of cowpea (Vigna unguiculata L. Walp) varieties to Rhizobia inoculation, phosphorus application and sequential cropping system in Minna, Nigeria, Adediran, O. A.*, Federal University of Technology, 2019.
 
Planting season effects on growth, yield and harvest index of photosensitive and photo-insensitive cowpea varieties, Mukhtar, F.* and Singh, B., in: Journal of Applied and Pure Science (Nigeria), volume 1, pages 33-38, 2005.
 
Preliminary evaluation of genetic variability for seedling morphology among selected varieties of cowpea (Vigna unguiculata (L) Walp.), Ajeigbe, H., Ewansiha, S. U. and Singh, B., in: Biological and Environmental Sciences Journal for the Tropics, volume 4, number 2, pages 107-110, 2007.
 
Profitability analysis of production of adopted improved cowpea varieties in Segou region of Mali, Coulibaly, A. *, Bayero University, 2024.
 
Protein quality of raw and autoclaved cowpeas: Comparison between some insect resistant and susceptible varieties, Umoren, U. E., Tewe, O., Bokanga, M. and Jackai, L., in: Plant Foods for Human Nutrition, volume 50, pages 301-315, 1997.
 
Reaction of cowpea varieties to Alectra vogeli in the northern Guinea Savanna of Nigeria, Magani, I. E.*, Lagoke, S.*, Emechebe, A., Singh, B. and Olufajo, O.*, number 6, 1996.
 
Reaction of cowpea varieties to Alectra Vogelii (Benth.) in Northern Guinea Savannah of Nigeria, Magani, I. E.*, Lagoke, S. T. O.* and Emechebe, A., in: The Nigerian Agricultural Journal, volume 40, number 1-2, pages 82-92, ISSN 0300-368X, 2009.
 
Response of cowpea (Vigna unguiculata L.Walp) varieties to Bradyrhizobial strains (USDA 3384 and 3451) and phosphorus levels in the Sudan Savanna of Nigeria, Musa, M.*, Bayero University, 2017.
 
Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria, Kamara, A., Ewansiha, S. U.*, Ajeigbe, H. A.+ and Omoigui, L.*, in: Archives of Phytopathology and Plant Protection, pages 1-12, ISSN 0323-5408, 2012. [DOI]
 
Sixty-day cowpea varieties, Singh, B., in: Paper presented at the American Society of Agronomy annual meeting, 28 November-3 December1982, Anaheim, Calif, USA, 1982.
 
Studies on genetic polymorphism of improved cowpea varieties using Simple Sequence Repeats (SSR) marker, Olasan, O. J.*, Omoigui, L., Oluma, H. A.*, Aguoru, C. U.*, Deo, D.*, Ugbaa, M. S.*, Ezugwu, J.*, Ekeruo, G.*, Dughduh, P.*, Iyorkaa, N.*, Simon, M.* and Okoh, T.*, in: Research Journal of Botany, volume 18, number 1, pages 36-42, ISSN 1816-4919, 2023. [DOI]
 
The poverty impacts of improved cowpea varieties in Nigeria: a counterfactual analysis, Manda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Assfaw Wossen, T., Chikoye, D. and Manyong, V., in: World Development, volume 122, pages 261-271, ISSN 0305-750X, 2019. [DOI]
 
The role of early maturing cowpea varieties in Tazania, Price, M, Singh, B. and Mamkwe, C, in: Trop.Grain Legumes Bull, volume 27, pages 8-10, 1983.
 
TK-1 and TK-5: new varieties of cowpea for Tanzania, Singh, B. and Mligo, J. K., in: Tropical Grain Legume Bulletin, number 21, 1980.
 
Total carotenoids, iron and zinc concentration of improved cowpea varieties grown in Nigeria, Maziya-Dixon, B. and Fatokun, C., Abstract (Poster) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010.
 
Variation in physico-chemical properties of seed of selected improved varieties of cowpea as it relates to industrial utilization of the crop, Ajeigbe, H., Ihedioha, D. O. and Chikoye, D., in: African Journal of Biotechnology, volume 7, number 20, pages 3639-3644, ISSN 1684-5315, 2008.
 
Varietal Trials and Physiological Basis for Yield Differences among Cowpea Varieties in Sudan Savanna of Nigeria, Kamai, N.*, Kamara, A. and Omoigui, L.*, in: International Journal of Agriculture Innovations and Research, volume 2, number 5, pages 855-859, ISSN 2319-1473, 2014.
 
Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties, Kamara, A., Omoigui, L. and Ewansiha, S. U., Abstract (Oral presentaion) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010.
 
Keywords:cowpea varieties, PREA, farmer participatory evaluation

Potentials of cowpea (Vigna unguiculata) for dry season seed and fodder production in Sahelian sandy soil of Niger, Saidou, A.K.*, Ajeigbe, H., Hide, O., Satoshi, T. and Singh, B. B., Abstract (Poster) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010.
 
Keywords:Vigna unguiculata, improved varieties of cowpea

The effectiveness of crop improvement programmes from the perspectives of varietal output and adoption: cassava, cowpea, soybean and yam in sub-Saharan Africa and maize in West and Central Africa, Alene, A., Abdoulaye, T., Rusike, J.*, Manyong, V. and Walker, T. S., pages 74-122, chapter 6, CGIAR and CABI, ISBN 978 1 78064 401 1, 2015.
 
Breeding soybeans for the tropics capable of nodulating effectively with indigenous Rhizobium spp., Kueneman, E., Root, W. R., Dashiell, K. and Hohenberg, J., in: Plant and Soil, volume 82, number 3, pages 387-396, 1984. [DOI]
 
Abstract:
Most soybean varieties fail to nodulate effectively in tropical soils unless inoculated with a competitive strain of Rhizobium japonicum. Developing countries in the tropics, with few exceptions, lack inoculant industries to produce and distribute viable inoculants to small farmers and extension programs to teach them to use inoculant. Several soybean genotypes have been identified that nodulate effectively with many strains of the cowpea inoculation group which is ubiquitous in tropical soils of Africa. Soybean genotypes that nodulate and grow well without inoculant application are called promiscuous. Methodologies for incorporation of the promiscuity character into high-yielding backgrounds are discussed.