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Wild common bean in the Central Valley of Costa Rica: ecological distribution and molecular characterization. This work offers an update on the distribution of wild common bean in Costa Rica. its ecology and molecular characterization. To date 22 populations have been discovered in four watershed...


González Torres, Rosa InésAraya Villalobos, RodolfoGaitán Solís, ElianaDebouck, Daniel G.[Wild common bean in the central valley of Costa Rica: Ecological distribution and molecular characterization = Frijol silvestre en el Valle Central de Costa Rica: distribución ecológica y caracterización molecular]Wild common bean in the central valley of Costa Rica: Ecological distribution and molecular characterization = Frijol silvestre en el Valle Central de Costa Rica: distribución ecológica y caracterización molecular

El desarrollo de variedades con alta productividad y adaptadas a condiciones de pequeño productor, se ha realizado en Costa Rica desde 1995 a través de fitomejoramiento participativo y es una de las estrategias más económicas para enfrentar los problemas del cultivo. El objetivo del presente trab...


Hernández, Juan CarlosChaves, Néstor F.Araya Villalobos, RodolfoBeebe, Stephen E.[“Diquís”, variedad de frijol común rojo brillante]“Diquís”, variedad de frijol común rojo brillante

A new wild bean found in the mountainous range "Fila Cruces" of southeastern Costa Rica is described. To date, only four populations are known from different sites on the slopes of Cerro Anguciana and "Fila Cruces" where it seems to be endemic. The differences (slender curved racemes, small oval ...


Debouck, Daniel G.Araya Villalobos, RodolfoChaves-Barrantes, Néstor Felipe[Phaseolus angucianae (Leguminosae: Phaseoleae), a new bean species from Fila cruces of Southeastern Costa Rica]Phaseolus angucianae (Leguminosae: Phaseoleae), a new bean species from Fila cruces of Southeastern Costa Rica

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

Con el objetivo de analizar el flujo de genes entre frijol común silvestre y cultivado, se determinó el porcentaje de alogamia en condiciones naturales de crecimie nto del frijol silvestre y en estación experimental. En el 2004 se evaluó el cruzamie nto natural entre frijol silvestre mexicano G23...


Chaves-Barrantes, Néstor FelipeAraya Villalobos, RodolfoDebouck, Daniel G.[Flujo de genes entre frijol común y silvestre en Costa Rica = Gene flow between wild common bean and cultivated cultivars in Costa Rica]Flujo de genes entre frijol común y silvestre en Costa Rica = Gene flow between wild common bean and cultivated cultivars in Costa Rica

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 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
Salcedo Castaño, Jesús MaríaAraya Villalobos, RodolfoCastañeda-Álvarez, Nora P.Toro Chica, OrlandoDebouck, Daniel G.[Phaseolus hygrophilus (Leguminosae-Papilionoideae), a new wild bean species from the wet forests of Costa Rica, with notes about section Brevilegumeni]Phaseolus hygrophilus (Leguminosae-Papilionoideae), a new wild bean species from the wet forests of Costa Rica, with notes about section Brevilegumeni
González V, E.M.Araya Villalobos, RodolfoGonzález M, W.Gálvez E., Guillermo E.[Evaluacion de la asociacion de dos ciclos vegetativos de frijol (Phaseolus vulgaris L.) con uno de maiz (Zea mays L.)]Evaluacion de la asociacion de dos ciclos vegetativos de frijol (Phaseolus vulgaris L.) con uno de maiz (Zea mays L.)
Salcedo Castaño, Jesús MaríaAraya Villalobos, RodolfoCastañeda-Álvarez, Nora P.Toro Chica, OrlandoDebouck, Daniel G.[Note about the taxonomy of Phaseolus hygrophilus Debouck (Leguminosae-Papilionoideae)]Note about the taxonomy of Phaseolus hygrophilus Debouck (Leguminosae-Papilionoideae)

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