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Salcedo Castaño, Jesús MaríaArroyave, José A.Toro Chica, OrlandoDebouck, Daniel G.[Phaseolus novoleonensis, a new species (leguminosae, phaseolinae) from the Sierra Madre Oriental, Nuevo León, México]Phaseolus novoleonensis, a new species (leguminosae, phaseolinae) from the Sierra Madre Oriental, Nuevo León, México
Debouck, Daniel G.[Antimemorias de los paniculati de Phaseolus desde el fin del terciario : Sucesos de especiación, extinción y peregrinación [resumen]]Antimemorias de los paniculati de Phaseolus desde el fin del terciario : Sucesos de especiación, extinción y peregrinación [resumen]

Evidence is presented about the presence of Phaseolus microcarpus in Costa Rica, while it was previously reported northwards in other Central American countries and Mexico. Fourteen populations are currently known, four from the Peninsula of Nicoya, and ten are in the tropical dry forest of the m...


Debouck, Daniel G.Chaves-Barrantes, Néstor FelipeAraya Villalobos, Rodolfo[New records of Phaseolus microcarpus (Leguminosae: Phaseoleae) for Costa Rica]New records of Phaseolus microcarpus (Leguminosae: Phaseoleae) for Costa Rica
Singh, Shree P.Debouck, Daniel G.Roca, William M.[Successful interspecific hybridization between Phaseolus vulgaris L. and P. costaricensis Freytag & Debouck]Successful interspecific hybridization between Phaseolus vulgaris L. and P. costaricensis Freytag & Debouck

Interest in bean genetic resources of Central America has resumed because of disease pressures (e.g., web blight, BGMV) and limitations of current bean varieties. As most of the diversity in landraces has been explored, focus is now on the exploration of wild forms of the primary gene pool and wi...


Araya Villalobos, RodolfoGonzález Ugalde, W.G.Camacho Chacon, FSánchez Trejos, Maria P.Debouck, Daniel G.[Observations on the geographic distribution, ecology and conservation status of several phaseolus bean species in Costa Rica]Observations on the geographic distribution, ecology and conservation status of several phaseolus bean species in Costa Rica

A new species of Phaseolus (Legumi nosae, Phaseolinae) has been found in the montane forests of the Sierra de Talamanca in eastern Costa Rica, where it appears endemic. Distinctive traits include: radicant roots, purplish red internodes, veins of leaflets, primary bracts, inner face of stan dard,...


Torres González, Alba MarinaToro Chica, OrlandoDebouck, Daniel G.[Phaseolus talamancensis, a new wild bean species (leguminosae, phaseoline) from montane forests of eastern Costa Rica]Phaseolus talamancensis, a new wild bean species (leguminosae, phaseoline) from montane forests of eastern Costa Rica

Schwartz, Howard F.Otto, KViteri, DMDebouck, Daniel G.Singh, Shree P.[Response of six wild Phaseolus Costaricensis accessions to seven bacterial, fungal, and viral diseases of common bean]Response of six wild Phaseolus Costaricensis accessions to seven bacterial, fungal, and viral diseases of common bean

During a 3-wk. trip to western Guatemala to collect bean germplasm, 88 seed samples were collected, representing 10 species in different forms. The germplasm involves 3 cultivated species (coccineus, polyanthus, and vulgaris), the ancestral forms of coccineus, lunatus, and polyanthus, and 3 wild ...


Debouck, Daniel G.Soto D., J.J.[Recoleccion de germoplasma de Phaseolus (frijol) en el Occidente de Guatemala]Recoleccion de germoplasma de Phaseolus (frijol) en el Occidente de Guatemala

A survey was carried out in Central Costa Rica in Jan. 1987, in an attempt to find web blight resistance in native var.; 43 samples representing 10 different taxa were found. Wild P. vulgaris was found in 2 different places in the province of San Jose; both populations presented truly wild charac...


Debouck, Daniel G.Araya Villalobos, RodolfoOcampo S., R.A.González Ugalde, W.G.[Collecting Phaseolus in Costa Rica]Collecting Phaseolus in Costa Rica
Debouck, Daniel G.[Observations about Phaseolus Lignosus (Leguminosae: Papilionoideae: Phaseoleae), a bean species from the Bermuda Islands]Observations about Phaseolus Lignosus (Leguminosae: Papilionoideae: Phaseoleae), a bean species from the Bermuda Islands

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