Listar Artículos científicos por fecha de publicación
Mostrando ítems 1-20 de 692
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An architectural analysis of the elongation of field-grown sunflower root systems. Elements for modelling the effects of temperature and intercepted radiation
(Society for Experimental Biology, 1996-03)The effects of photosynthetic photon flux density (PPFD) and soil temperature on root system elongation rate have been analysed by using an architectural framework. Root elongation rate was analysed by considering three ... -
Impact of supermarkets and fast–food chains on horticulture supply chains in Argentina
(Wiley, 2002-09)In the 1990s, the supermarket and fast–food sectors grew rapidly in Argentina. Both were dominated by multinational firms, and their growth drove profound change in food market systems and farming. This article analyses ... -
Fate of Neospora-seropositive animals: an opinion
(Sociedad Chilena de Parasitología, 2005-12)Neospora caninum is an abortive protozoon in cattle, which causes severe economic losses worldwide. Chronically infected cattle however develop immune responses protecting against further Neospora induced abortions. ... -
Temperature influence during seed filling on tocopherol concentration in a traditional sunflower hybrid
(Instituto de la Grasa, CSIC, 2007)Se investigó el efecto de la temperatura durante períodos cortos en el llenado de las semillas sobre la concentración de tocoferoles y la relación tocoferoles/ácido linoleico en un híbrido tradicional de girasol. Se realizó ... -
Influence of corn silage supplementation before alfalfa grazing on ruminal environment in relation to the occurrence of frothy bloat in cattle
(Elsevier, 2007-07)Changes in the ruminal environment of cattle supplemented with corn silage (CS) before alfalfa grazing, in relation to the occurrence of frothy bloat, were evaluated. Six ruminally fistulated heifers were used in a crossover ... -
Rewatering Plants after a Long Water-deficit Treatment Reveals that Leaf Epidermal Cells Retain their Ability to Expand after the Leaf has Apparently Reached its Final Size
(Oxford Academic Press, 2008-05)Background and Aims: Leaves expand during a given period of time until they reach their final size and form, which is called determinate growth. Duration of leaf expansion is stable when expressed in thermal-time and in ... -
Genetic variability for leaf growth rate and duration under water deficit in sunflower: analysis of responses at cell, organ, and plant level
(Oxford Academic Press, 2008-05)Plants under water deficit reduce leaf growth, thereby reducing transpiration rate at the expense of reduced photosynthesis. The objective of this work was to analyse the response of leaf growth to water deficit in several ... -
Enteric mucosal antibodies to Escherichia coli o157:h7 in adult cattle
(Wiley, 2008-08)This short communication describes a study conducted to determine whether antibodies to lee -encoded proteins are detectable in mucosal secretions from the terminal colon and rectum in adult yearling cattle following E ... -
Gene content and distribution in the nuclear genome of Fragaria vesca
(Crop Science Society of America, 2009-03)Thirty fosmids were randomly selected from a library of Fragaria vesca subsp. americana (cv. Pawtuckaway) DNA. These fosmid clones were individually sheared, and ∼4- to 5-kb fragments were subcloned. Subclones on a single ... -
Changes in the aerobic vaginal flora after treatment with different intravaginal devices in ewes
(Elsevier, 2010-11)The objective of this study was to characterize the vaginal bacterial flora and subsequent pregnancy rates after AI in sheep subjected to 4 different estrous synchronization regimes – the use of two intravaginal devices ... -
Hipomagnesemia en vacas de cría en un campo de la zona del caldenal
(Facultad de Ciencias Veterinarias, Universidad Nacional de la Pampa, 2011)El objetivo de este trabajo fue estudiar los niveles de magnesio (Mg) sérico en un rodeo de cría de un establecimiento de la zona del caldenal pampeano, y las concentraciones en forrajes y agua de bebida de minerales ... -
Histopathological, Immunohistochemical, Lectinhistochemical and Molecular Findings in Spontaneous Bovine Abortions by Campylobacter fetus
(Wiley, 2011-04)Bovine campylobacteriosis (BC) is a venereal disease caused by Campylobacter fetus characterized by temporary infertility with mild endometritis, early embryonic death and occasional abortions. The objectives of this study ... -
Persistencia del herbicida imazapir en el suelo y efectos fitotóxicos sobre cultivos de invierno y de verano
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2011-04)Imazapir es un herbicida de amplio espectro de control, perteneciente al grupo químico de las imidazolinonas. En Argentina es aplicado a gran escala en los cultivos de girasol y maíz Clearfield. Debido a su acción residual ... -
Grupos funcionales de plantas, producción de forraje y eficiencia de uso de radiación de pastizales naturales en condiciones potenciales y limitadas de agua y nitrógeno
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2011-04)Con el objetivo de analizar el efecto de la disponibilidad hídrica y nitrogenada sobre el crecimiento primavero estival de forraje, se condujo un experimento en un pastizal natural de la Pampa Deprimida (Argentina) con ... -
Caso inusual de calcinosis enzoótica por el consumo de Solanum glaucophyllum en un encierre a corral.
(2012)En Argentina, la calcinosis enzoótica es una enfermedad frecuente en la cría extensiva de ganado. Esta intoxicación es poco frecuente en sistemas intensivos. Este artículo describe la aparición de un brote de calcinosis ... -
Critical nitrogen dilution curve for processing potato in Argentinean Humid Pampas
(Springer, 2012-04)For processing potato, a new algorithm has been developed to determine nitrogen (N) requirement (NR) applying critical N dilution curve (Nc). The objectives of this work were i) to determine the Nc for processing potato ... -
Formulaciones con combinación de ingredientes activos para el control de Armadillidium vulgare (Crustacea: Isopoda), plaga en el cultivo de colza
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2012-04)La colza (Brassica napus, B. campestris) en siembra directa (SD) representa una alternativa en los sistemas de rotación actuales. Armadillidium vulgare es una de las plagas principales de los cultivos en SD. El objetivo ... -
Fósforo disponible en suelos agrícolas de la región Pampeana y ExtraPampeana argentina
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2012-04)La respuesta de los cultivos a la aplicación de fósforo (P) depende del nivel de disponible (P-Bray) en el suelo. Los objetivos de este trabajo fueron determinar la distribución de la concentración de P-Bray en suelos ... -
Actualización sobre la intoxicación por Wedelia Glauca (ort.) Hoffm. Ex. Hicken, Asteraceae
(2012-05-20)Wedelia glauca (Ort. Hoffm. ex. Hicken, Asteraceae) es una maleza muy extendida por toda Argentina. Constituye la planta de toxicidad aguda, de mayor importancia en la Pampa húmeda. Si bien es una planta perenne, durante ... -
Anthelmintic efficacy of five tropical native Australian plants against Haemonchus contortus and Trichostrongylus colubriformis in experimentally infected goats (Capra hircus)
(Elsevier, 2012-06)The study of the anthelmintic properties of plants rich in plant secondary metabolites can provide ecologically sound methods for the treatment of parasites on grazing animals. The purpose of the present study was to ...