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The 3-stage progeny evaluation program at CIAT tested 1902 materials (67.4 percent new entries) in 1986, distributed as follows: 1st stage (bean evaluation nursery-VEF), 1282 entries; 2nd stage (preliminary trials-EP), 435 entries; and 3rd stage (IBYAN), 185 entries. The following data are includ...

El programa de evaluacion de progenies en 3 etapas en CIAT probo en 1986 un total de 1902 materiales (67.4 por ciento nuevas entradas), distribuidos como sigue: primera etapa (vivero de evaluacion de frijol-VEF), 1282 entradas; segunda etapa (ensayos preliminares-EP), 435 entradas; y tercera etap...

The Great Lakes Regional Bean Program works with the agricultural research institutions of Burundi, Rwanda, and Zaire. Advanced breeding lines were introduced as potential new var. for the region and/or as sources of resistance to angular leaf spot, anthracnose, Ascochyta leaf spot, halo and BCMV...

Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting, can affect seed viability, germination and contaminatio...

La semilla constituye un metodo eficiente de diseminacion de organismos fitopatogenos entre distintas localidades; mas del 50 por ciento de las principales enfermedades del frijol son transmitidas por semilla. El dano mecanico que ocurre durante la cosecha, trilla y/o siembra tambien puede afecta...

Seeds provide an efficient method for disseminating pathogenic organisms to different locations; more than 50 percent of the major bean diseases are seed borne. Mechanical damage, which may occur during harvesting, threshing and/or planting can affect seed viability, germination, and result in co...

La semilla constituye un metodo eficiente de diseminacion de organismos fitopatogenos a diversas localidades; mas de 50 por ciento de las principales enfermedades del frijol son transmitidas por la semilla. El dano mecanico que ocurre durante la cosecha, trilla y/o siembra tambien puede afectar l...

Emphasis has been placed on the screening of hybrid selections for resistance to rust, anthracnose, BCMV and Empoasca sp., yield and sensitivity to photoperiod. A total of 1464 materials (937 selections from the breeding program) were screened in the Bean Team Nursery and 700 (200 breeding select...

Se ha dado prioridad a la seleccion de hibridos por resistencia a roya, antracnosis, BCMV y Empoasca sp., rendimiento y sensibilidad al fotoperiodo. Del vivero del Programa de Frijol se seleccionaron 1464 materiales (937 selecciones del programa de mejoramiento genetico) y 700 materiales del Ensa...

Bean anthracnose, caused by the fungus Colletotrichum lindemuthianum, is a worldwide disease in susceptible var. grown in locations with cool to moderate temp. and with a high RH. It can appear anywhere in the plant. Losses can be up to 100 percent when severely infected seed is planted. For effi...

La antracnosis del frijol, causada por el hongo Colletotrichum lindemuthianum, es una enfermedad que se presenta en todo el mundo en las var. susceptibles establecidas en localidades con temp. moderadas-frias y con alta HR ambiental. Puede aparecer en cualquier parte de la planta. Las perdidas pu...

Main activities conducted during 1986 regarding the improvement of individual characters in bean comprised the evaluation of several advanced and segregating bean nurseries for their reactions under field conditions to rust, angular leaf spot, anthracnose, common bacterial blight, and halo blight...

Las principales actividades realizadas durante 1986 en relacion con el mejoramiento de caracteres individuales en frijol comprendieron la evaluacion de algunos viveros de frijol avanzados y segregantes por sus reacciones en condiciones de campo a roya, mancha foliar angular, antracnosis, anublo b...

Snap bean improvement at CIAT has been carried out collaboratively with Washington State U. since 1983, to incorporate disease resistance and tropical adaptation from the dry bean improvement programs into green beans. An international adaptation nursery of advanced snap bean lines was distribute...

Snap bean improvement at CIAT has been carried out collaboratively with Washington State U. since 1983, to incorporate disease resistance and tropical adaptation from the dry bean improvement programs into green beans. An international adaptation nursery of advanced snap bean lines was distribute...

El mejoramiento de habichuela en CIAT se ha realizado en colaboracion con la U. del estado de Washington desde 1983, para incorporar la resistencia a enfermedades y la adaptacion tropical de los programas de mejoramiento de frijol a la habichuela. Se distribuyo un vivero internacional de adaptaci...

The Great Lakes Regional Bean Program works with the agricultural research institutions of Burundi, Rwanda, and Zaire. Advanced breeding lines were introduced as potential new var. for the region and/or as sources of resistance to angular leaf spot, anthracnose, Ascochyta leaf spot, halo and BCMV...