Artículos científicos: Envíos recientes
Mostrando ítems 381-400 de 656
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Feedbase intervention in a cow-calf system in the flooding pampas of Argentina: 2. Estimation of the marginal value of additional feed
(Elsevier, 2017-11)Temporal variability in the availability of forage reduces the production and economic performance of livestock systems. The marginal value of feed (MVF, the possible gross economic benefit of additional feed on offer ... -
Bacterias nativas del suelo con potencial para la degradación de glifosato y promoción del crecimiento vegetal.
(Asociación Argentina de la Ciencia del Suelo, 2018-12)El uso de los microorganismos del suelo y sus interacciones benéficas con las plantas y el ecosistema, son una estrategia promisoria para lograr una agricultura sustentable. Debido a la alta frecuencia de detección del ... -
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 ... -
Predicting maize phenology: intercomparison of functions for developmental response to temperature
(American Society of Agronomy, 2014-12)Accurate prediction of phenological development in maize (Zea mays L.) is fundamental to determining crop adaptation and yield potential. A number of thermal functions are used in crop models, but their relative precision ... -
Evaluation of different live Salmonella enteritidis vaccine schedules administered during layer hen rearing to reduce excretion, organ colonization, and egg contamination
(Oxford University Press, 2019-01-25)Salmonellosis caused by Salmonella Enteritidis is a widespread zoonosis and poultry products are an important source of infection. This study was carried out to evaluate the protection of different vaccination schedules ... -
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 ... -
Heterologous recombinant protein with decapacitating activity prevents and reverts cryodamage in ram sperm: An emerging biotechnological tool for cryobiology
(Elsevier, 2016-01)During the last decades fundamental and applied aspects of mammalian ram sperm cryopreservation have been increasingly explored by scientists and biotechnologists. Many works report modifications in the composition of the ... -
Use of a critical phosphorus dilution curve to improve potato crop nutritional management
(Springer, 2016-08)Plant diagnostic methods to determine P deficiencies need the definition of a critical concentration value which represents the minimum P concentration required to achieve maximum growth. The critical P concentration (Pc) ... -
Canopy indices to quantify the economic optimum nitrogen rate in processing potato
(Springer, 2016-06)In-season N applications to processing potato crops may increase profits and improve N fertilizer use efficiency. The objective of our study was to evaluate indices to predict the differential economic optimum N rate (dEONR) ... -
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 ... -
Increases in the source to sink ratio related to a higher carbohydrate concentration reduce phoma black stem in sunflower
(Springer Netherlands, 2018-03)Phoma black stem (BS), caused by Leptosphaeria lindquistii (synonymous Phoma macdonaldii Boerema) is an endemic disease of sunflower in Argentina and occurs worldwide. The expression of some diseases is related to the ... -
Chlorophyll meter for the evaluation of potato N status
(Springer, 2013-08)Here, we propose a new approach to determine the level of plant N nutrition, based on the relationship between chlorophyll meter (CM) readings and total biomass in potato plants. The objectives of this work were i) to ... -
Can soil properties and agricultural land use affect arbuscular mycorrhizal fungal communities indigenous from the Argentinean Pampas soils?
(Elsevier, 2016-05)In order to determine if intensive agricultural land use and/or edaphic characteristics modify the community of the arbuscular mycorrhizal fungi (AMF) indigenous of soils from the Argentinean Pampa; mycorrhizal colonization, ... -
Soil organic carbon changes simulated with the AMG model in a high-organic-matter Mollisol
(Sociedad Española de la Ciencia del Suelo, 2016)Soil organic carbon (SOC) management requires a precise knowledge of how it is affected by soil use. Simulation models could help for this purpose. The AMG model is simple, requires information that is easily available, ... -
Effect of conventional and no-till practices on solute transport in long term field trials
(Elsevier, 2014-09)The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. However, the impact of tillage ... -
Modulation of cathelicidins, IFNβ and TNFα by bovine alpha-herpesviruses is dependent on the stage of the infectious cycle
(Elsevier, 2019-07)Production of antimicrobial peptides cathelicidins, interferons and cytokines is an important feature in airway epithelial host defense. The innate immune response to alpha-herpesvirus infection at the sites of primary ... -
Effect of combined stress (salinity + hypoxia) and auxin rooting hormone addition on morphology and growth traits in six Salix spp. Clones
(Springer Nature, 2019-04-15)Willows plantations development could be an alternative for hydro-halomorphic soils but it is limited by combined stress salinity + hypoxia (main stressor under waterlogging conditions). We studied the effects of saline ... -
Evaluating the impacts and benefits of sheldgeese on crop yields in the Pampas region of Argentina: a contribution for mitigating the conflicts with agriculture
(Elsevier, 2019-07-01)Conflicts between waterfowl and agriculture are common in many nations around the world. However, these birds can also provide a variety of benefits that humanity can obtain from nature. There are three migratory and endemic ... -
Flood mitigation ecosystem service in landscapes of Argentina's Pampas: identifying winning and losing farmers
(Elsevier, 2019-07-15)Ecosystem services are only able to make a contribution to human well-being if they reach the users or beneficiaries. Therefore, it is important to differentiate the potential contributions of ecosystems (ecosystem service ... -
Growth of the wild potato Solanum commersonii (Solanaceae) among grass tussocks under different defoliation intensities = Crecimiento de la papa silvestre Solanum commersonii (Solanaceae) entre matas de gramíneas bajo diferentes intensidades de defoliación
(Asociación Argentina de Ecología, 2018)Solanum commersonii is a wild potato, valuable as a socioeconomic resource for a breeding program of feeding crops. In grasslands, this species grows associated to Paspalum quadrifarium, a forage grass managed under ...