Turrialba
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Magnesio en suelos y forrajes de la pradera pampeana argentina
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-04)Magnesium situation in soils and fodder of the Argentinean pampas is analyzed, with particular reference to animal production. This approach is due to the fact that magnesium is linked, in that ecological environment, with ... -
Sugarcane variety trials in Saint Croix, U. S. Virgin Islands
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-04)El rendimiento y contenido de sacarosa de variedades de caña de azúcar se determinó en sembríos de campo durante el período 1952-1966. Los ensayos de variedades se establecieron sobre cuatro tipos de mayores de suelos en ... -
Herencia de la necrosis marrón y de otros caracteres del trigo en el Perú
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-04)The inheritance of several characters was studied in a cross between the wheat varieties ´Rew-H44-Rhod´, low yielding and brown necrosis susceptible, and ´Nariño 59´, good yielding and brown necrosis resistant. The studies ... -
Notas y comentarios
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-04)En esta sección se publican notas de interés técnico sobre conferencias internacionales, programas de investigación, extensión y educación, nombramiento de personal directivo. organización de nuevas instituciones, distinciones ... -
Minerales de arcilla en suelos centroamericanos y de Panamá
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)The available information on clay minerals in soils of Central America and Panama is presented. The importance of amorphous materials is shown in soils of volcanic origins as well as in other soils also. A large variability ... -
Biología floral de la quinua (Chenopodium quinoa)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)The knowledge of the floral biology of quinoa (Chenopodium quinoa Willd.) is of basic importance in breeding. The project was aimed to clarify some aspects, such as percentage of flowers of different sex; time of maturity ... -
Estudio sobre la patogenicidad de Fusarium oxysporum f. phaseoli en el frijol. II. Pruebas varietales
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)A total of 103 varieties of the common bean, collected from all over the American Continent, were tested in regard to their susceptibility to the fungus Fusarium oxysporum f. phaseoli. The results obtained clearly demonstrate ... -
Estudio sobre la patogenicidad de Fusarium oxysporum f. phaseoli en el frijol. I. Patogénesis e histología sintomatológica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)The penetration development of the infection in the pathological anatomy of the so-called “fusariosis” disease of the common bean was to studied in several susceptible and tolerant varieties. The tests of penetration were ... -
Reconocimiento preliminar sobre enfermedades del maíz en Centroamérica y Panamá
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)The author has used the opportunity offered by frequent visits to Central America and Panama, to observe diseases in corn, a crop that grows in diverse environments. These visits were made to temperate and cold zones, as ... -
Environmental scaling of microhabitats for some Costa Rican grasses
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1969-01)Con las descripciones de hábitats contenidas en el libro de colecciones de la asignatura de Agrostología, 1966, de la OTS (Organization of Tropical Studies), se evaluó el microhábitat de varias gramíneas de Costa Rica ...
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