Listar Artículos científicos por fecha de publicación
Mostrando ítems 381-400 de 654
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Does the photo-thermal environment limit post-flowering maize growth?
(Elsevier, 2020-07-01)After canopy closure and in the absence of limitations by water or nutrient availability, crop growth rate (CGR) of maize (Zea mays L.) is ultimately constrained by the daily incident radiation and temperature of the ... -
Prediction of topsoil properties at field-scale by using C-band SAR data
(Elsevier, 2020-07-10)Designing and validating digital soil mapping (DSM) techniques can facilitate precision agriculture implementation. This study generates and validates a technique for the spatial prediction of soil properties based on ... -
Bioformulación de Trichoderma harzianum en sustrato sólido y efectos de su aplicación sobre plantas de pimiento
(Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, 2020-07-11)Para la implementación de biofertilizantes se pretende que su formulación sea económica, de fácil aplicación y que garantice la eficacia del inóculo. Nuestro objetivo fue seleccionar un sustrato para vehiculizar Trichoderma ... -
Delayed-type hypersensitivity skin test against Neospora caninum in heifers with undetectable specific antibodies
(Elsevier, 2020-07-19)Delayed-type hypersensitivity (DTH) has been used in human and veterinary medicine as a skin testing for evaluating in vivocell-mediated immune responses (CMIR). Whereas CMIR is a key process to control intracellular ... -
Revaluation of waste from fishing industry through generation of chitosan coatings to improve quality and extend shelf-life of minimally processed lettuce
(Elsevier, 2020-07-24)Chitosan is obtained at industrial scale through a process of alkaline deacetylation of chitin the major waste of shrimp industry. Its utilization could both diminish industrial environmental impact and add value to foods ... -
Ecological risk assessment of current-use pesticides and biocides in soils, sediments and surface water of a mixed land-use basin of the Pampas region, Argentina
(Elsevier, 2020-08)The present study aimed to assess the ecological risk of 30 current-use agricultural pesticides and biocides in the soil, sediments and aquatic organisms of a mixed land-use basin located in the Depressed Pampas Region of ... -
Calidad morfológica de ovocitos obtenidos in vivo en diferentes ondas foliculares de vacas tratadas con FSH
(Ediciones Taurus, 2020-08)Los objetivos del presente trabajo fueron determinar 1) el efecto de un tratamiento con FSH y 2) el período del ciclo estral (metaestro= primera onda folicular o diestro= segunda onda folicular) durante el crecimiento de ... -
Respuesta a la frecuencia de defoliación de plantas de festuca alta de una población naturalizada infectada con endófito silvestre y un cultivar comercial libre
(Ediciones INTA, 2020-08)El objetivo del presente trabajo fue evaluar el efecto de dos frecuencias de defoliación sobre el crecimiento vegetativo y reproductivo de plantas de festuca alta provenientes de semilla cosechada en una población naturalizada ... -
Transformación eficiente de Solanum tuberosum cv. Spunta mediada por Agrobacterium tumefaciens utilizando higromicina como agente selectivo
(Ediciones INTA, 2020-08)La transformación genética de plantas es una herramienta biotecnológica de alto impacto en el mejoramiento vegetal que brinda la posibilidad de obtener nuevos cultivos que se adapten a las demandas de producción y de ... -
Influence of soil texture, climate and vegetation cover on secondary soil salinization in pampas plains, South America.
(Universidad Federal de Lavras; Brasil., 2020-08-11)Land-use change from herbaceous to woody cover -or vice versa- largely affects water fluxes, which in turn can mobilize existing salts dissolved in the soil, and thereby negatively affect soil and/or water quality and site ... -
Cholesterol and desmosterol incorporation into ram sperm membrane before cryopreservation: Effects on membrane biophysical properties and sperm quality
(Elsevier, 2020-09)Ram sperm are particularly sensitive to freeze-thawing mainly due to their lipid composition, limiting their use in artificial insemination programs. We evaluated the extent of cholesterol and desmosterol incorporation ... -
Eco-physiological processes underlying maize water use efficiency response to plant density under contrasting water regimes
(Elsevier, 2020-09)This study quantified maize (Zea mays L.) water use efficiency for grain yield (WUEg) in response to plant density under contrasting water regimes; and focused on relevant eco-physiologial processes underlying the responses ... -
Effects of Campylobacter fetus on bull sperm quality
(Elsevier, 2020-09)Campylobacter fetus is a gram-negative, motile, spiral or S-shaped bacterium, which induces campylobacteriosis. This disease causes decrease productivity of cattle. Although considerable research has been done on the role ... -
Improvement of Leptospira spp. diagnosis in aborted bovine fetuses by qPCR
(Elsevier, 2020-09)Leptospirosis is a disease with major economic impact on livestock industry. The objective of this work was to determine the presence of Leptospira spp. DNA by qPCR in bovine fetuses with presumptive diagnosis of leptospirosis ... -
Shoot- and tuber-based critical nitrogen dilution curves for the prediction of the N status in potato
(Elsevier, 2020-09)Critical nitrogen (N) dilution curves describe the critical N concentration in plant tissues during crop growth and they are used to estimate the N nutriton status of whole plants in potato. Little is known, however, about ... -
Environmental and anthropogenic drivers of soil methane fluxes in forests: Global patterns and among‐biomes differences
(Wiley & Sons, 2020-09)Forest soils are the most important terrestrial sink of atmospheric methane (CH4). Climatic, soil and anthropogenic drivers affect CH4 fluxes, but it is poorly known the relative weight of each driver and whether all drivers ... -
Effects of cold storage duration and 1-MCP treatment on ripening and ‘eating window’ of ‘Hayward’ kiwifruit
(IOS Press, 2020-09-08)BACKGROUND:It is known that 1-MCP delays softening in kiwifruit. Time to ripen (eating-window) and its variability are considered useful for planning commercial strategies. However, few studies report the firmness and ... -
Widespread and major losses in multiple ecosystem services as a result of agricultural expansion in the Argentine Chaco
(Wiley, 2020-09-09)1.Where agriculture expands into tropical and subtropical forests, social–ecological impacts are typically strong. However, where and how frontier development impacts on ecosystem functioning and services is often unclear, ... -
Determining Mehlich-3 and DTPA extractable soil zinc optimum economic threshold for maize
(Wiley, 2020-09-16)Maize (Zea mays L.) is one of the most susceptible crops to zinc (Zn) deficiency. However, in much of the world, soil Zn tests are poorly calibrated, and thus determining a critical soil test, level for Zn is challenging. ... -
Selection and hybridization shaped the rapid spread of African honey bee ancestry in the Americas
(Public Library of Science, 2020-10)Recent biological invasions offer ‘natural’ laboratories to understand the genetics and ecology of adaptation, hybridization, and range limits. One of the most impressive and well-documented biological invasions of the ...