Turrialba
Envíos recientes
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Relación de los coleópteros Xyleborus sp. con la infección por Ceratostomella fimbriata
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Attempts made in the laboratory failed to transmit the cacao disease caused by Ceratostomella fimbriata by means of Xyleborus spp. collected from diseased trees and confined in glass tubes on branches of disease-free trees. ... -
Infección del cacao por el Ceratostomella fimbriata a través de heridas por corte
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)On wounds similar to those made at pruning and other practices, inflicted on cacao trees, pure cultures of Ceratostomella fimbriata were inoculated. The inoculations were succesful when the wounds reached the cambium of the trees. -
Infección y síntomas progresivos ocasionados por Ceratostomella fimbriata en el cacao
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Ceratostomella fimbriata grew and sporulated well on potato-destrose-agar and on sawdust from cacao wood beneath the cambium. Inoculation with pure cultures into wounds resulted in infection when applied to the cambial ... -
Utilización de métodos biológicos en la recuperación de suelos "salitrosos" en regiones de secano
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Saline soils in Argentina were sown with Sorghum technicum and subjected afterwards to intensive pasturage. The remainder vegetation was plowed under. On this mulch a mixture of grasses and legumes was sown to make a ... -
Tratamiento con cinina para retardar la clorosis en estacas de cacao empacadas para el transporte
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Treating freshly harvested cacao cuttings with 10 ppm N6-benzyladenine delayed leaf chlorosis and necrosis when the cuttings were packed for shipment and kept at room temperature. Ninety percent of the treated cuttings ... -
Postes vivos para cercos
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Three species, Erythrina poeppigiana, Gliricidia sepium and Erythrina costaricensis were used in an experiment on rooting of live fence posts at Turrialba, Costa Rica. Two planting dates, two diameter classes, and the ... -
Factores que afectan la germinación del cacao
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Cold killed (3 grades centigrades) cacao seeds were soaked in metabolites such as vitamins, amino acids, nucleic acid derivatives, etc., to see if the damage could be overcome, but no treatment was successful. Hypocotyl ... -
Reseña de libros: Turrialba (IICA), vol. 12(3)
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Reseñas de distintos libros, escritas por diferentes autores. Cada reseña explica de qué trata la obra, cómo está estructurada, qué temas aborda y aporta una crítica, en la que los autores especifican en qué puede mejorar ... -
Pruebas de abonamiento con N, P y K para elevar la producción de café en la Meseta Central de Costa Rica
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)In seven localities on the central plateau of Costa Rica, uniform trials of three levels of N, P and K were made on coffee plantations. Results were variable. The increase of yields was more pronounced with N and K in ... -
Estructura anatómica y propiedades físico-mecánicas de dos maderas del Perú Guarea trichilioides L. y Ceiba pentandra L.
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Samples from a dry tropical forest close to the Ucayali river, Perú, of two Peruvian woods, Ceiba pentandra Land Guarea trichiliaides L., were studied at the Wood Technology Laboratory, Universidad de los Andes, Mérida, ...
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