Recherche
Voici les éléments 661-670 de 690
Adaptación de una técnica de inmunosorbencia (ELISA) a la detección del virus del rayado fino del maíz en su insecto vector
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
An enzyme-linked immunosorbent assay (EWA ) was adapted for the detection of maize rayado lino vims (REV) in its insect vector Dalbulus midis. Optimization of experimental conditions for the assay included the use of ...
Susceptibilidad de Solanum elaeagnifolium Cav. a la acción de dos herbicidas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
Two herbicides, glifosate and MCPA picloram, were sprayed at different doses throughout the year's growth cycle of SoIntim theagnifolium. Greatest susceptibility of the plants was registered when chemicals were applied on ...
Estudios de control de insectos para la preservación del maíz opaco-2 almacenado, y efectos sobre su valor nutritivo.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
The present research was carried out to evaluate the effectiveness of three types of packaging materials and of six treatments on the control of insect infestation of Opaque-2 corn. The packaging materials employed were ...
Balance interno del agua en los tallos axilares de trigo bajo condiciones de déficit hídrico
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
Existe escasa información acerca de la manera como el déficit hídrico afecta diferencialmente las hojas de los tallos axilares (macollas) y del tallo principal de la planta de trigo (Triticum aestivum).
Por ello, se ...
Aspectos de la nutrición nitrogenada de Paspalum notatum Flugge, en respuesta a fuentes de nitrógeno e inhibición de nitrificación.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
A greenhouse experiment was made to study the effects of NH4 or NO3 (single vs, split, 3x) application on growth and nitrogen (N) assimilation of Paspalum nota-turn Fhi,gge Light and temperature conditions over the ...
Distribución de materia seca en el frijol (Phaseolus vulgaris L.) bajo condiciones de campo
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
This research was undertaken to determine the effect of plant density on the distribution of dry weight in the aboveground of four bean varieties (Phaseolus vulgaris L.).
The varieties Zacatecas 21-1-21, illichoacdn 12A-3, ...
Efecto de fungicidas sobre la conservación de semilla de maíz previamente invadida por hongos de bodegaje
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-04)
Seed of maize invaded and non invaded by storage fungi was treated with fimgicides, and stored under favourable conditions for the growth of storage fungi.
At 40 and 80 days of storage all the tested fungicides protected ...
Efecto de la ingestión de las toxinas producidas por el hongo Beauveria sp. sobre la mortalidad de adultos y larvas de la pulga saltona Epitrix sp.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
Beauveria sp. was evaluated in the laboratory of Institute Nacional de Investigacion -Palian-PerO as pathogen of adults and larvaes of "hopping flea" Epitrix sp. In a randomized design with three replications, sixty adults ...
Métodos de aplicación del hongo Beauveria sp. para el control de la pulga saltona de la papa Epitrix sp.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-01)
Effective control of "hopping flea" Epitrix sp was obtained with powder of spores of Beauveria sp. This treatment significantly reduced "hopping flea" populations.
Beauveria sp was dusted onto "hopping flea" adults, eggs ...
Control químico de malezas en arroz (Oryza sativa L. cv. Inti) de transplante con herbicidas granulados
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1982-04)
An experiment to compare the control of weeds with herbicides has been conducted in the Experimental Station of. lequetepeque Valley, district of Guadalupe, Province of Pacasmayo, Department of La bibertad, Peru.
The ...