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The main administrative activities (changes, meetings, agreements, visits of CIAT staff, evaluating committee of PROFRIZA, and publications) of the Regional Bean Program for the Andean Zone (PROFRIZA) during the 1st semester of 1990 are reported. The most important technical activities regarding ...


Gálvez E., Guillermo E.[Informe semestral del Programa de Frijol para la Zona Andina: Enero-Junio 1990]Informe semestral del Programa de Frijol para la Zona Andina: Enero-Junio 1990

There are various viruses transmitted by aphids that infect beans in almost all countries; (1) BCMV causes yield losses from 35- 98 percent according to the var., time of infection and environmental conditions. The virus can attack any part of the plant and produces 3 types of symptoms: mosaic, n...

Existen varios virus transmitidos por afidos que infectan el frijol y se encuentran en casi todos los paises, 1) El BCMV ocasiona perdidas en el rendimiento que varian de 35-98 por ciento segun la var., la edad al momento de la infeccion, y las condiciones ambientales. El virus puede atacar cualq...


Gálvez E., Guillermo E.[Virus transmitidos por afidos]Virus transmitidos por afidos

There are various viruses transmitted by aphids that infect beans in almost all countries; (1) BCMV causes yield losses from 35- 98 percent according to the var., time of infection and environmental conditions. The virus can attack any part of the plant and produces 3 types of symptoms: mosaic, n...

Existen varios virus transmitidos por afidos que infectan el frijol y se encuentran en casi todos los paises, 1) El BCMV ocasiona perdidas en el rendimiento que varian de 35-98 por ciento segun la var., la edad al momento de la infeccion, y las condiciones ambientales. El virus puede atacar cualq...


Gálvez E., Guillermo E.[Aphid-transmitted viruses]Aphid-transmitted viruses

An expt. was established in Esparza (Costa Rica), on the integrated management of web blight (Thanatephorus cucumeris) in common beans under the min. tillage system. Var. Porrillo 70 (intermediate resistance) and ICA Pijao (susceptible) were used. Herbicides gliphosate and paraquat (1.0 kg/ha) of...


Sánchez, H.M.Alfaro M., R.Morales G., A.MORA B., B.Gálvez E., Guillermo E.[Manejo integrado de mustia hilachosa causada por Thanatephorus cucumeris (Frank) Donk en frijol comun]Manejo integrado de mustia hilachosa causada por Thanatephorus cucumeris (Frank) Donk en frijol comun
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.)

Bean diseases such as rust (Uromyces phaseoli var. typica), web blinght (Thanatephorus cucumeris) and angular leaf spot (Isariopsis griseola), not only destroy plant foliage but also cuase physiological damage. To determine yield losses, the cv. ICA-Gualì and porrillo sintetico were artificially ...


Gálvez E., Guillermo E.Galindo, J.J.Álvarez, G.G.[Defoliacion artificial para estimar perdidas por danos foliares en frijol (Phaseolus vulgaris)]Defoliacion artificial para estimar perdidas por danos foliares en frijol (Phaseolus vulgaris)

In search of tolerance to BGMV, screening of 41 F2 and F3 populations of a group of crosses from CIAT was started in Guatemala in 1977. In 1978, some F4 F5 and F6 selections were evaluated in preliminary yield trials with high infection pressure. In 1979 the best F7 and F8 lines were widely teste...


Yoshii, K.Gálvez E., Guillermo E.Temple, Steven R.Orozco, SHMasaya, P.M.[Release of three new Guatemalan bean varieties tolerant to golden mosaic virus]Release of three new Guatemalan bean varieties tolerant to golden mosaic virus
Valladolid, A.Gálvez E., Guillermo E.[Improvement of large white seeded dry bean cultivars for resistance to nematodes in the Peruvian Coast]Improvement of large white seeded dry bean cultivars for resistance to nematodes in the Peruvian Coast

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