Descubre y comparte nuestro conocimiento público

A general description is given of cassava. Data deal with geographical distribution, production, yields and nutritional value, varietal improvement, agronomic practices, diseases and pests. Research activities in cassava are also described. (CIAT)

Se presenta una descripcion general de la yuca. Los datos tratan distribucion geografica, produccion, rendimientos y valor nutricional, mejoramiento var., practicas agronomicas, enfermedades y plagas. Tambien se incluyen actividades de investigacion en yuca. (CIAT)

Results are discussed and tables are included with the data obtained for bush and climbing beans grown in: (1) the Bean Team Nursery (VEF) between July 1-Dec. 31, 1981; (2) the 1981 Preliminary Yield Trial (EP), selected from the correspondent VEF reported the previous year; and (3) the 1980 Inte...

Se discuten los resultados y se incluyen tablas con los datos obtenidos para frijol arbustivo y voluble en: 1) el Vivero del Equipo de Frijol (VEF) sembrado entre julio 1-dic. 31 de 1981; 2) el Ensayo de Rendimiento Preliminar (EP) 1981, seleccionados del VEF del ano inmediatamente anterior; 3) e...

Research carried out by CIAT on specific character improvement is described and the results obtained in the following studies are given: resistance to viral (BCMV, combined BCMV and BYMV, bean chlorotic mottle virus, and BGMV), fungal (anthracnose, angular leaf spot, rust, and web blight), and ba...

Se describen las investigaciones realizadas por CIAT sobre mejoramiento del caracter especifico y se presentan los resultados obtenidos sobre: resistencia a enfermedades virales (BCMV, combinacion de BCMV y BYMV, virus del moteado clorotico del frijol y BGMV), fungicas (antracnosis, mancha foliar...

The factors affecting the quality of cassava roots were studied: var. and age of the plant; DM, starch, and sugar contents in the roots; cyanide contents in leaves and roots. Roots of bitter var. CMC-84 showed higher DM contents than those of sweet var. CMC- 40. Total and reducing sugar contents ...

Se estudiaron los factores que afectan la calidad de las raices como: var.; edad de la planta; contenidos de MS, almidon y azucares en la raiz; y contenidos de cianuro en hojas y raices. Las raices de la var. amarga CMC-84 presentaron mayor contenido de MS que la var. dulce CMC-40. Los contenidos...

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 ...

Research activities carried out by CIAT in collaboration with national research institutions for the improvement of bean production in the Central American and Caribbean region are analyzed. In 1981, preliminary trials (EP) were planted in Costa Rica and Guatemala in an effort to identify promisi...

Among the bacterial diseases that attack beans are (1) halo blight (Pseudomonas phaseolicola), which is distributed worldwide and survives in infected seeds and blunt residue. Three to five days after infection, water-soaked spots appear on the lower leaf surface, stem and pods; (2) bacterial wil...

Entre las enfermedades bacterianas que atacan el frijol tenemos: 1) anublo de halo (Pseudomonas phaseolicola) que se encuentra presente en todo el mundo, sobrevive en semillas infectadas y en residuos vegetales de los 3-5 dias despues de la infeccion aparecen manchas acuosas en el enves de la hoj...

A methodology to describe quality and quantity characteristics of bean var. is presented. A complete list of data that should be taken is included and each item is explained. Data are classified according to the growth stage in which they should be taken: seedling, flowering, pod fill, physiologi...

Se presenta una metodologia para la descripcion de caracteristicas cualitativas y cuantitativas de var. de frijol. Se incluye una lista completa de los datos que se deben tomar y una explicacion de cada uno de ellos. Los datos se clasifican segun la epoca en que se deben tomar: en estado de plant...