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At the Apion nursery, Asuncion Mita, Jutiapa, several entries from the Guatemalteco Germplasm Bank (some formerly reported as resistant), entries from CIAT preliminary yield trials (EP-81), and individual selections from Linea 17 and from the International Apion Nursery were assessed for resistan...


Beebe, Stephen E.Salguero, V[Evaluacion de resistencia del frijol al Apion godmani en Judapa Guatemala]Evaluacion de resistencia del frijol al Apion godmani en Judapa Guatemala

The purpose of the 1st Latin American workshop on snap bean improvement was to define objectives and strategies for crop improvement and discuss the relationship between an international center for agricultural research and the national programs. The relationships between the public and private s...


Davis, J.H.C.Janssen, W.[El mejoramiento genético de la habichuela en América Latina: memorias de un taller, CIAT, Cali, Colombia, 11 al 15 de mayo de 1987]El mejoramiento genético de la habichuela en América Latina: memorias de un taller, CIAT, Cali, Colombia, 11 al 15 de mayo de 1987
Autor: Davis, J.

A summary on bean improvement activities carried out by CIAT in the Great Lakes Region is presented. Collaboration in bean breeding among Rwanda, Burundi, and Zaire has resulted in an integrated scheme of var. evaluation. The nucleus of this scheme is the PRELAAC (Pepiniere Regionale pour l`Evalu...


Davis, J.[Breeding activities in Africa]Breeding activities in Africa

Pests and diseases are among the main reasons for low banana productivity in smallholder farming systems in the central African highlands, where the crop is an important staple, In parts of Rwanda, Burundi and North and South Kivu provinces of eastern Democratic Republic of Congo, diseases such a...


Ouma, Emily A.Dubois, T.Kabunga, N.Nkurunziza, S.Qaim, M.Asten, Piet J.A. van[Adoption and impact of tissue culture bananas in Burundi: an application of a propensity score matching approach]Adoption and impact of tissue culture bananas in Burundi: an application of a propensity score matching approach

The population dynamics of major cowpea pests was studied in northern Nigeria during 1992-95 in both the wet and dry seasons. Rainfall cowpea is grown as a subsistence crop, mixed at low densities with cereals. Dry-season cowpea is irrigated or grown on residual moisture in monocultures as a cash...


Bottenberg, H.Tamo, M.Arodokoun, D.Jackai, L.E.N.Singh, B.Youm, O.[Population dynamics and migration of cowpea pests in northern Nigeria: implications for integrated pest management]Population dynamics and migration of cowpea pests in northern Nigeria: implications for integrated pest management

Cowpea is an important grain legume throughout the tropics and subtropics, covering Asia, Africa, and Central and South America, as well as parts of southern Europe and the United States of America. The use patterns, seed preferences, and cropping systems vary from region to region. Insect pests,...


Singh, B.Chambliss, O.Sharma, B.[Recent advances in cowpea breeding]Recent advances in cowpea breeding

The use of cowpea haulms as fodder is attractive in mixed crop/livestock systems where both grain and fodder can be obtained from the same crop. Traditional farming systems which use the haulms as fodder in Asia, Australia, Africa, and other regions are reviewed. ILRI and I1TA have undertaken joi...


Tarawali, Shirley A.Singh, B.Peters, M.Blade, S.[Cowpea haulms as fodder]Cowpea haulms as fodder

Several applications of biotechnology have been successfully used recently in cowpea. A molecular map of cowpea has been constructed using RFLP markers, and this has already facilitated the localization of certain quantitative trait loci; gene chromosome localization using in situ hybridization i...


Monti, L.Murdock, L.Thottappilly, G.[Oppotunities for biotechnology in cowpea]Oppotunities for biotechnology in cowpea

The genus Vigna comprises seven subgenera and sixteen sections. Cowpea, Vigna tingnicnlatti (L.) Walp.. is an important grain legume crop in sub-Saharan Africa and belongs to the subgenus Vigna. section Ctitiang. Morphologically, cowpea genotypes appear very variable. However, a high level of gen...


Fatokun, C.A.Perrino, P.Ng, N.Q.[Wide crossing in African Vigna species]Wide crossing in African Vigna species

Biological control, as a key component of biointensive IPM in cowpea, is evaluated for its practical feasibility. The case study of one of the major insect pests, the bean flower thrips Megalumthrips sjosredti (Trybom) (Thysanoptera, Thripidae), is used to indicate the most important criteria for...


Tamo, M.Bottenberg, H.Arodokoun, D.Adeoti, R.[The feasibility of classical biological control of two major cowpea insect pests]The feasibility of classical biological control of two major cowpea insect pests

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