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This study modeled the introduction of new early cultivars of millet and cowpea, higher cowpea densities, and various fertilization strategies. Model results were then compared with farmer behaviour before and after the availability of these new technologies. The model correctly identified the tw...


Shapiro, Barry I.Sanders, J.H.Reddy, K.C.Baker, T.G.[Evaluating and adapting new technologies in a high-risk agricultural system - Niger]Evaluating and adapting new technologies in a high-risk agricultural system - Niger
Badu-Apraku, B.Yallou, C.Oyekunle, M.Akinwale, R.Aweke, G.Kamara, A.[Consistency of performance of early-maturing maize cultivars in Striga infested and Striga-free environments]Consistency of performance of early-maturing maize cultivars in Striga infested and Striga-free environments

Maize improvement at the International Institute of Tropical Agriculture (IITA), which began in the 1970s, built on the germplasm and experience of earlier years. The main breeding emphasis was to develop maize cultivars and hybrids with high yield potential and durable resistance to diseases and...


Kamara, A.Y.Menkir, A.Fakorede, M.A.B.Ajala, S.O.Badu-Apraku, B.Kureh, I.[Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa]Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa

Multi-environment trials (METs) in West Africa have demonstrated the existence of genotype×environment interactions (G×E), which complicate the selection of superior cultivars and the best testing sites for identifying superior and stable genotypes. Two powerful statistical tools available for ME...


Badu-Apraku, B.Oyekunle, M.Obeng-Antwi, K.Osuman, A.S.Ado, S.G.Coulibaly, N.Yallou, C.G.Abdulai, M.S.Boakyewaa, G.A.Didjeira, A.[Performance of extraearly maize cultivars based on GGE biplot and AMMI analysis]Performance of extraearly maize cultivars based on GGE biplot and AMMI analysis

The history of bean breeding in Uganda from 1960-90 is reviewed, covering production constraints, germplasm collections, introductions, and cultivar release. Note is made of the restructuring of the breeding programme in 1989 and the resulting large increase in breeding material handled. Yield re...

Se revisa la historia del mejoramiento de frijol en Uganda de 1960-90, incluyendo los limitantes de la produccion, recolecciones de germoplasma, introducciones y liberacion de cv. Se destaca la reestructuracion del programa de mejoramiento en 1989 que dio como resultado un incremento considerable...


Musaana, M.S.Gridley, H.[Bean breeding in Uganda]Bean breeding in Uganda
Toro Chica, OrlandoOcampo Nahar, César H.Beebe, Stephen E.[Phaseolin diversity in Colombian common bean germplasm]Phaseolin diversity in Colombian common bean germplasm

A detailed socio-economic description is given of this rustic farm community on the Atlantic Coast of Colombia. Where cassava is the main source of income. Av temp is 28 degrees Celsius, annual rainfall 1556 mm; the sandy soils (pH 5.5-6) have less than 1 percent OM, less than 15 ppm P and less t...


Díaz Duque, R.O.[El cultivo de la yuca en La Colorada, Media Luna]El cultivo de la yuca en La Colorada, Media Luna

Crosses were made and cv. and lines selected to combine the existing resistance to Xanthomonas campestris pv. phaseoli with adaptation to the tropics and to determine new sources of resistance. Crosses were made between adapted lines and sources of resistance, some with Great Northern genes. The ...


Beebe, Stephen E.[Progreso en el CIAT Palmira, Colombia en mejoramiento de resistencia a Xanthomonas campestris phaseoli (X. phaseoli) en frijol para la zona tropical]Progreso en el CIAT Palmira, Colombia en mejoramiento de resistencia a Xanthomonas campestris phaseoli (X. phaseoli) en frijol para la zona tropical
González Torres, Rosa InésSuárez Baron, HaroldMartínez Garay, CarlosDuque E., Myriam CristinaDebouck, Daniel G.Tohme, Joseph M.[Determination of gene flow events in natural "wild-weedy-cultivated" complexes in genepools of Phaseolus lunatus L]Determination of gene flow events in natural "wild-weedy-cultivated" complexes in genepools of Phaseolus lunatus L

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