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Efecto de la temperatura del suelo y su oscilación sobre el crecimiento y la acumulación de nutrimentos en la parte aérea del café
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-07)
An apparatus was developed to control soil temperature inside experimental pots. The temperature was controlled in such a way as to imitate closely the continuous variation of the temperature of the top layers of the soil ...
Influencia de sustancias orgánicas en la persistencia del carbaril en suelos
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-10)
La degradación del carbaril, evaluada por la técnica de centelleo liquido fue estudiada en dos tipos de suelos tratados con diferentes fuentes de nutrimentos orgánicos.
Los resultados obtenidos muestran que después de 2 ...
Peso y contenido de aceite de las semillas de higuerilla (Ricinus communis L.): Efecto de la posición en el racimo
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-10)
The seed weight and oil content of the castorbean cultivar Guarani and the introduction IPP, were evaluated at the top, middle and lower parts of the raceme. The evaluations were done in order to verify differences along ...
Los perfiles de humedad vertical de hojas en una plantación de café
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-01)
This work studies the leaf wetness vertical profiles in a coffee crop. Visual observation of wetness was done at several heights on west and east faces of plants under recent low topping condition, on the west face of ...
Estudio taxonómico del género Coffea empleando métodos numéricos
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
Using flavonoid and phenolic compound constituents, methods of numerical taxonomy were applied to ten species and some cultivars of three species of the genus Colica. The purpose was to investigate the genetic relatiottships ...
Conservación y almacenamiento de Passiflora edulis f. flavicarpa Deg. III. Variaciones en el contenido de ácido ascórbico
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
The value of the fruits juice is frequentely expressed by his ascorbic acid content In this work, .yellow passion fruit (Passiflora cdulis f flavicarpa) was used. Ripe and partially ripe passion fruits were stored, in both, ...
Patrón de crecimiento de las raíces y la parte aérea de la yuca (Manihot esculenta Crantz), en las condiciones del "cerrado" del Distrito Federal
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-10)
To evaluate the growth of the roots and vegetative part (leaves 4- stems) on cassava (Manihot esculents. Crantz) an experiment was carried out in the Cerrados National Research Center. Planaltina, Federal District, Brazil, ...
Influencia de la premaduración de la leche en la elaboración del queso tipo Minas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
The objective of this study was to verify the influence of the pre ripening of milk on the manufacture of Minas cheese. The treatments were. A) fresh milk; B) pre ripened milk for 2:30 hours, raised the acidity from 0.03 ...
Organización del capítulo fructífero y heterocarpia en Bidens pilosa L.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
Bidens pilosa L.. (Compositae) one among the World's worst weeds, produces open globose heads of desmochorous achenes disposed radially around the receptacle. These achenes are more numerous (about 60%) in the inferior ...
Determinación de S cambiable del suelo por el método colorimétrico del metiltimol azul
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-04)
Traditional methods Jim determinist the exchangeable S of soils lack sensitivity, reproducibility, and are too time consuming. The method described in this paper is more favorable. Blue methylthymol in a high pH (12.70) ...