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Now showing items 51-59 of 59
La determinación, por microscopio electrónico, de las dimensiones de las partículas del virus de la poliedrosis nuclear (NPV) de Anticarsia gemmatalis Hubner en Bombyx mori L
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-10)
A nuclearpolyhedrosis in caterpillars of A. gemmatalis was transmitted to the silkworm, B. mori. This might explain the occurrence of nuclear polyhedrosis in useful insects, acquired from other insects.
An examination of ...
Fenologia de Melia azedarach L. no sul do Brasil
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-01)
This paper reports 12 months of phenoloagical observations of Melia azedarach growing an the Horto Fiorestal “Navarro de Andrade", Rio Claro, Sao Paulo, Brasil. This place is located in an area with a mean annual rainfali ...
Turrialba; Vol. 30, no.1
(1980-01)
El estudio microbiológico de la maceración de arroz (Oryza sativa): I. Efecto del proceso de maceración sobre el beneficio del arroz
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-10)
Several factors are recognized as contributing to breakage of rice during milling. Most of the breakage is related quantitatively to the amount of cracked grains. Improperly harvesting or diving and bad storage conditions ...
Temperatura do ar em cafezal
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-01)
This paper studies the thermal 1egime of añ inside an unshaded conventional coffee crop.
Measmements were made al five levels corresponding lo 20, 40, 60, 80 and 100 per cent of mean crop height.
Air temperature inside ...
Molhamento foliar em cafezal recepado e decotado
(1980-01)
This paper reports on the study of the beginning termination and duration of the active period of leaf wetness in the coffee. Surface wetness was observed in two plots a vranged in a north-south orientation, on the sides ...
Estudios sobre la nutrición mineral del sorgo para grano. X. Eficiencia nutritiva comparativa entre sorgo para grano maíz
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-10)
This investigation was designed to estimate and to compare the nutritional efficiency of 5 grain sorghum and 6 corn cultivars. In the greenhouse, sorghum and corn plants were grown in nutrient solution until maturity, being ...
Formacao de ácidos orgánicos, acúcares e lipídeos a partir de acetato C em folhas de cafeeiro
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-07)
The acetate 14C metabolism was studied in detached coffee leaves (Coffea arabica L. cv. 'Mundo Novo'). The leaves were incubated in 10 pCi of acetato-1-C and 10 uCi of acetato-12-25C out of Inminosity Incubation was ...
Turrialba; Vol. 30, no. 3
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-07)