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International Center for Tropical Agriculture[Evaluation and improvement of agronomic practices]Evaluation and improvement of agronomic practices

The seventh testing cycle for promising CIAT selections under improved, low-input technology was completed in 1981 at 9 locations in Colombia. The overall av. yield of the trials was 8.5 t/ha/yr, which is nearly 3 times the national av. yield of 3-3.5 t/ha. Av. yield of local cv. was about twice ...


International Center for Tropical Agriculture[Pruebas regionales]Pruebas regionales

Advances in research of the soil and plant nutrition section of CIAT's Cassava Program in 1981 are given regarding symptoms of Ca and S deficiency, germplasm screening for adaptation to high acidity and/or low P; effect of fertilization (long-term fertility); level and time of K application; effe...


International Center for Tropical Agriculture[Suelos y nutricion de la planta]Suelos y nutricion de la planta

During 1981 the introduction of germplasm was continued with an additional 147 clones from Brazil in the form of aseptic meristem cultures. Cassava germplasm bank evaluation for adaptation, resistance to diseases and pests, yield, and root quality is in progress in the north coast of Colombia (Me...

Durante 1981 se continuo la introduccion de germoplasma, especialmente 147 clones de Brasil en la forma de cultivo de meristemos. Se siguio la evaluacion del banco de germoplasma de yuca por su adaptacion, resistencia a enfermedades y plagas rendimiento y calidad de las raices en la Costa Norte d...


International Center for Tropical Agriculture[Desarrollo de germoplasma]Desarrollo de germoplasma

A cooperative project between Central American countries and CIAT to increase bean production in the region was initiated in 1980. The following activities were stimulated: (1) Interinstitutional technology transfer by distribution through CIAT yield and adaptation nurseries and national programs...

En 1980 se inicio un proyecto cooperativo entre los paises de America Central y el CIAT para incrementar la produccion de frijol en la region. Se estimularon las siguientes actividades: 1) Transferencia interinstitucional de tecnologia mediante la distribucion en la region de viveros de adaptacio...


International Center for Tropical Agriculture[Cooperación internacional: Proyectos en la región]Cooperación internacional: Proyectos en la región

A cooperative project between Central American countries and CIAT to increase bean production in the region was initiated in 1980. The following activities were stimulated: (1) Interinstitutional technology transfer by distribution through CIAT yield and adaptation nurseries and national programs...

En 1980 se inicio un proyecto cooperativo entre los paises de America Central y el CIAT para incrementar la produccion de frijol en la region. Se estimularon las siguientes actividades: 1) Transferencia interinstitucional de tecnologia mediante la distribucion en la region de viveros de adaptacio...


International Center for Tropical Agriculture[International cooperation. Outreach projects]International cooperation. Outreach projects

A series of comparisons of photoperiod response in relation to seed size, growth habit, origin, and yield performance were conducted using photoperiod response data obtained in previous trials with 450 bean lines. Data for all the materials evaluated are presented in table form. Regional differen...

Usando datos sobre respuesta al fotoperiodo obtenidos en ensayos anteriores realizados con 450 lineas de frijol, se realizaron una serie de comparaciones de respuesta al fotoperiodo en relacion con el tamano de la semilla, habito de crecimiento, origen y comportamiento del rendimiento. Se present...


International Center for Tropical Agriculture[Mejoramiento genético. Mejoramiento de caracteres. Adaptación a fotoperíodo-temperatura]Mejoramiento genético. Mejoramiento de caracteres. Adaptación a fotoperíodo-temperatura

International Center for Tropical Agriculture[Ensayos Preliminares: Programa de frijol = Preliminary Trials: Bean Program]Ensayos Preliminares: Programa de frijol = Preliminary Trials: Bean Program

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