Listar Artículos científicos por fecha de publicación
Mostrando ítems 461-480 de 654
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Study and modelling the respiration of corn seeds (Zea mays L.) during hermetic storage
(Elsevier, 2021-06-05)The dynamics of oxygen (O2) and carbon dioxide (CO2) concentrations were characterized in corn (Zea mays L.) seed hermetically stored in glass jars at 15, 25 and 35 °C and 14.3, 16.5 and 18.3% moisture content. Gas ... -
Genome-wide association analysis of agronomical and physiological traits linked to drought tolerance in a diverse potatoes (Solanum tuberosum) panel
(Wiley-Blackwell Publishing, 2021-06-12)Potatoes is often considered a drought-sensitive crop and its sustainable production is threatened due to frequent drought episodes. Drought tolerance is a complex trait of increasing importance in potatoes therefore its ... -
The impact of COVID-19 on alternative and local food systems and the potential for the sustainability transition: Insights from 13 countries.
(Elsevier, 2021-06-23)The COVID-19 pandemic has been a major stress test for the agri-food system. While most research has analysed the impact of the pandemic on mainstream food systems, this article examines how alternative and local food ... -
Color and Marbling as Predictors of Meat Quality Perception of Argentinian Consumers
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-06-24)In Argentina, color and intramuscular fat are the main attributes of raw beef quality; however, it is necessary to clarify how consumers use them, in order to establish different marketing strategies. Consumer preferences ... -
Increasing grain yield in bread wheat (Triticum aestivum) by selection for high spike fertility index
(Wiley, 2021-06-28)Spike fertility index (SF) has been proposed as a promising selection criterion for increasing grain yield (GY) in bread wheat. Here, changes in GY and related traits after simulated selection (10% intensity) for high SF ... -
Encalado en suelos agrícolas acidificados de la región pampeana: efecto sobre actividad de hongos micorricicos
(Asociación Argentina de la Ciencia del Suelo, 2021-07)Nuestro objetivo fue evaluar los cambios en la abundancia y actividad de hongos micorrícicos arbusculares (HMA) en respuesta al agregado de calcita como corrector de pH. Se testearon tres dosis de calcita (0, 2000 y 6000 ... -
Degradación de atrazina en rotaciones agrícolas sobre suelos molisoles del sudoeste chaqueño
(Asociación Argentina de la Ciencia del Suelo, 2021-07)La molécula de atrazina en el suelo se degrada mediante procesos químicos y microbiológicos, dependiendo de las propiedades físico-químicas, biológicas del suelo y de factores meteorológicos como temperatura y humedad. El ... -
Agricultura de precisión: dosis variable de fósforo en soja (Glycine max (L.) Merr.)
(Asociación Argentina de la Ciencia del Suelo, 2021-07)La agricultura de precisión (AP) permite delimitar zonas de manejo (ZM) que expresan diferente potencial de rendimiento. Los objetivos de esta investigación fueron: (l) Determinar la interacción entre las ZM y la fertilización ... -
Delimitación de zonas de manejo en pasturas bajo diferentes niveles de nitrógeno y épocas del año.
(Asociación Argentina de la Ciencia del Suelo, 2021-07)Los suelos ganaderos presentan una elevada heterogeneidad que provoca variabilidad en la producción de forraje. Por lo tanto, los objetivos de este trabajo fueron (a) determinar, a escala de lote, si la relación entre la ... -
Cover crop species can increase or decrease the fertilizer-nitrogen requirement in maize
(American Society of Agronomy; Estados Unidos, 2021-07-03)Cover crop species and termination date could affect fertilizer-N management and N diagnostic methods traditionally used in bare fallow-maize (Zea mays L.) systems. Our objectives were to (a) assess the impact of cover ... -
Improving soil organic nitrogen and sulfur pools by cover cropping and crop fertilization in soybean-based cropping systems
(Elsevier, 2021-07-10)Nitrogen (N) and sulfur (S) define crops productivity, and are currently deficient in most agricultural soils. In agricultural systems, management practices can affect N and S organic pools (Norg and Sorg, respectively). ... -
Methane and nitrous oxide emissions from dung patches deposited by grazing cattle supplemented with maize grain
(Elsevier, 2021-07-13)Feeding management represents an opportunity to improve cattle performance in grazing-based production systems and to mitigate emissions of greenhouse gases (GHG) from livestock production. However, it is unclear how diet ... -
Morphometric study of encephalic lesions in aborted bovine fetuses naturally infected by two subpopulations of Neospora caninum
(Springer, 2021-08)Neospora caninum is a major reproductive disease in cattle worldwide. In the Argentinian Humid Pampa, the seroprevalence, incidence of abortions, and economic losses due to neosporosis are considerably higher in dairy than ... -
Hypomagnesemia in beef cattle from the central region of Argentina: retrospective study
(Centro de Ciências Rurais, Universidade Federal de Santa Maria, 2021-08)Hypomagnesaemia (grass tetany) is a metabolic disorder of ruminants due to a reduced dietary intake of magnesium (primary deficiency), incorrect digestibility or associated metabolic factors reducing Mg intake (secondary ... -
El rol de las agronomías y acopios en la consolidación del modelo de agronegocios en Balcarce (2000 – 2019)
(Facultad de Humanidades y Ciencias de la Educación, Universidad Nacional de La Plata., 2021-08-02)El objetivo de este trabajo es reflexionar sobre el rol de las agronomías y acopios en la construcción social del territorio de Balcarce (sudeste bonaerense) a partir del año 2000. Para ello, se focaliza en las interacciones ... -
Effect of intensified cropping sequences on soil physical properties in contrasting environments
(Elsevier, 2021-08-27)Soybean (Glycine max (L.) Merr.) monoculture contributes to soil degradation. Intensification of soybean-based sequences through polyculture, cover crops (CC), and crop fertilization can enhance soil physical quality and ... -
Arbuscular mycorrhizal fungi from argentinean highland puna soils unveiled by propagule multiplication
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-30)Low arbuscular-mycorrhizal (AM) sporulation in arid field soils limits our knowledge of indigenous species when diversity studies are based only on spore morphology. Our aim was to use different approaches (i.e., spore ... -
Atrazine uptake, translocation, bioaccumulation and biodegradation in cattail (Typha latifolia) as a function of exposure time
(Elsevier, 2021-08-30)The extensive use and environmental persistence of atrazine has resulted in its ubiquitous occurrence in water resources. Some reports have described atrazine bioaccumulation and biodegradation pathways in terrestrial ... -
Isolation of Campylobacter fetus subsp. venerealis from seminal vesicle of a naturally challenged bull
(Springer Verlag, 2021-09-03)Campylobacter fetus is a well-recognized pathogen that affects reproductive rate in cattle. In the present study, two Angus bulls were kept (39 days) separately with a group of heifers experimentally infected withCampylobacter ... -
Narrow vessels cavitate first during a simulated drought in Eucalyptus camaldulensis
(Wiley, 2021-09-15)Establishing drying-limits for mortality of different tree species and understanding the anatomical and physiological traits involved is crucial to predict forests' responses to climate change. The xylem of Eucalyptus ...