Resultados de búsqueda - "Chang’an"

Vegetation structure and livestock grazing intensity affect ground-foraging birds in xerophytic forests of Central-East Argentina por Dardanelli, Sebastian, Calamari, Noelia Cecilia, Canavelli, Sonia Beatriz, Barzan, Flavia Romina, Goijman, Andrea Paula, Lezana, Lucrecia

“…Therefore, evaluating changes in bird species associated with a particular stratum can provide valuable information on the health, productivity, and functionality of the ecosystem. …”
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Escurrimientos Hídricos Superficiales en la Cuenca Hidrográfica de “El Morro”, Provincia de San Luis por Galvan, Mario Jesus, Collado, Alfredo

“…The present situation diagnosis is developed on: a) a qualitative assessment in the field, supported by satellite images and aerial photographs of drainage, climate, landscape, soil, geology and land use / land cover change; and b) a quantitative diagnosis with the application of the hydrological model Watershed and Runnof. …”
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A meta-analysis of hairy vetch as a previous cover crop for maize por Rodriguez, Maria Pia, Vargas, Joaquín, Correndo, Adrián, Carcedo, Ana Julia Paula, Carciochi, Walter Daniel, Sainz Rozas, Hernan Rene, Barbieri, Pablo, Ciampitti, Ignacio Antonio

“…Contrasting literature results emphasize the need for a global synthesis analysis to quantify changes in maize yield after hairy vetch. Objectives A meta-analysis was conducted to i) quantify maize yield response to hairy vetch as previous crop, ii) explore hairy vetch influence on fertilized and non-N fertilized maize yields, and iii) assess the tillage and environment factors on maize yield response to hairy vetch. …”
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Soil respiration response to reductions in maize plant density and increased row spacing (Southeast pampas, Argentina) por Lewczuk, Nuria, Picone, Liliana, Echarte, María Mercedes, Alfonso, Cecilia, Rizzalli, Roberto Héctor, Echarte, Laura

“…However, the combination of this practice with low-yield potential genotypes that exhibit low stability to changes in resource availability can increase CO2 emissions per unit of grain yield. …”
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Influence of Variations of Experimental Conditions and Methods on the Quantification of Nitrous Oxide (N2O) Emissions in Sugarcane: a Meta-Analysis por Valencia Molina, Manuel C., Chalco Vera, Jorge Elías

“…Quantifying and analyzing nitrous oxide (N2O) emissions from sugarcane-cultivated soils is a priority issue due to its potential role in climate change in the coming decades. However, understanding the impact of this crop on global N2O emissions is complicated by the variety of experimental conditions and methods used to quantify these emissions. …”
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Maize management practices and its relationship with nitrogen indexes and yield por Martinez, Dionisio Roberto, Pietrobon, Marianela, Crespo, Cecilia, Stadler, Nicolás, Barbieri, Pablo

“…Increased nitrogen availability consistently increased yield on average by 2599 kg ha− 1 across all plant densities. Changes in density affected nitrogen sufficiency indicators similarly to nitrogen rate variations and water conditions. …”
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Frequencies of β-casein variants and their influence on genetic merit for production traits in Holstein cows por Caffaro, María Eugenia, Raschia, Maria Agustina, Maizon, Daniel Omar, Poli, Mario Andres

“…Conclusions: These results are valuable to visualize the trends in CSN2 allele and genotype frequency changes over the years and to analyze the effect of the different variants of β-casein on production performance. …”
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Development of a ptp2-LAMP assay for the specific and sensitive detection of Nosema apis and its comparison with ptp3-LAMP for the detection of Nosema ceranae, in a region endemi... por Lannutti, Lucas, Gisder, Sebastian, Florin-Christensen, Monica, Genersch, Elke, Schnittger, Leonhard

“…Amplification was verified by agarose gel electrophoresis (conventional format), and by a change from pink to yellow color after addition of a suitable dye (colorimetric format). …”
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Land use intensity and cropping sequence effects on aggregate stability and C storage in a Vertisol and a Mollisol por Novelli, Leonardo Esteban, Caviglia, Octavio, Wilson, Marcelo German, Sasal, Maria Carolina

“…The relevant change in land use duemainly to the rapid expansion of soybean cropping towards areas traditionally occupied for livestock purposes or with native grasslands of South America may have negative consequences on soil organic carbon (SOC) storage and aggregate stability, although the effect may be different between soils with contrasting aggregation agents. …”
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How land allocation and technology innovation affect the sustainability of agriculture in Argentina Pampas: an expanded life cycle analysis por Rotolo, Gloria Claudia, Montico, Sergio, Francis, C.A., Ulgiati, Sergio

“…These challenges need rigorous approaches to measuring technological change costs and benefits as well as evaluating environmental impact of farmers' management practices. …”
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Time to re-think the GMO revolution in agriculture por Rotolo, Gloria Claudia, Francis, C.A., Craviotto, Roque Mario, Viglia, S., Pereyra, A., Ulgiati, Sergio

“…Information embodied in seed is essential to continuity of food production, adaptation to changing climate, and evolution of human society. Introduction of transgenic (GMO) technologies simplifies management, appears profitable for seed companies and farmers, and promotes efficient industrialization of agriculture, although there is ongoing debate about potential of GMO varieties to increase genetic yield potential. …”
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Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation por Beati, Lorenza, Nava, Santiago, Burkman, Erica J., Barros Battesti, Darci M., Labruna, Marcelo B., Guglielmone, Alberto, Cáceres, Abraham G., Guzman Cornejo, Carmen M., Léon, Renato, Durden, Lance A., Faccini, João L.H.

“…The temporal and spatial diversification modes of the six lineages overlap the phylogeographical history of other organisms with similar extant trans-Amazonian distributions and are consistent with the present prevailing hypothesis that Neotropical diversity often finds its origins in the Miocene, after the Andean uplift changed the topology and consequently the climate and ecology of the Neotropics.…”
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Effects of low-density Pinus elliottii (Slash pine) afforestation on environmental conditions and native plant diversity, in the mountains of central Argentina por Fiandino, Santiago Ignacio, Plevich, Jose Omar, Tarico, Juan Carlos, Nuñez, César, Rusch, Veronica Elena, Gyenge, Javier

“…Conclusions: Our study indicates that the changes in site variables produced by low-density afforestation generate niches for some species and, simultaneously, constitute a barrier to others. …”
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Neospora caninum serostatus is affected by age and species variables in cohabiting water buffaloes and beef cattle por Moore, Prando Dadin, Konrad, José Luis, San Martino, Silvina, Reichel, Michael, Cano, Dora Beatriz, Méndez, Shelby, Spath, Ernesto Juan, Odeon, Anselmo Carlos, Crudeli, Gustavo Angel, Campero, Carlos Manuel

“…This indicates that for every one year increase in age, the expected change in log odds of being seropositive increased by 0.03. …”
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Experimental inoculation of Neospora caninum in pregnant water buffalo por Konrad, Jose Luis, Moore, Prando Dadin, Crudeli, Gustavo Angel, Caspe, Sergio Gaston, Cano, Dora Beatriz, Leunda, Maria Rosa, Lischinsky, Lilian Haydee, Regidor-Cerrillo, Javier, Odeon, Anselmo Carlos, Ortega-Mora, Luis M., Echaide, Ignacio Eduardo, Campero, Carlos Manuel

“…Specific antibodies were detected in only two fetuses from dams inoculated at 90 dp that were slaughtered at 42 dpi. No macroscopic changes in the placentas and organs of viable fetuses were observed. …”
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Decomposition from legume and non-legume crop residues: effects on soil organic carbon fractions under controlled conditions por De Sa Pereira, Eduardo, Duval, Matias Ezequiel, Galantini, Juan Alberto

“…Hence, this organic carbon fraction is sensitive to residue decomposition and can be indicators of changes in soil organic matter over short periods of time.…”
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Biplot pattern interaction analysis and statistical test for crossover and noncrossover genotype-by-environment interaction in peach por Angelini, Julia, Faviere, Gabriela Soledad, Bortolotto, Eugenia Belén, Arroyo, Luis Enrique, Valentini, Gabriel Hugo, Cervigni, Gerardo Domingo Lucio

“…Three test methods, suitable for investigating two-factor interactions, were used to show that interactions between genotypes and environment involve significant changes in rank order. The Yang test based on mixed model theory combined with interaction-wise error rate was the most sensitive to detect COI, while the Gail and Simon, as well as the Azzalini and Cox methods were conservative. …”
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Source-sink relations and kernel weight in maize inbred lines and hybrids : responses to contrasting nitrogen supply levels por Hisse, Ignacio R., D'Andrea, Karina Elizabeth, Otegui, María Elena

“…The objective of this study was to analyze the effect of nitrogen (N) availability on KW determination in two different groups of genotypes (inbreds and hybrids) when it is caused by changes in the source-sink relationship at mentioned periods. …”
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Genetic diversity of maize landraces from lowland and highland agro‐ecosystems of Southern South America: implications for the conservation of native resources por Bracco, Mariana, Lia, Veronica Viviana, Hernández, J.C., Poggio, Lidia, Gottlieb, Alexandra Marina

“…On the one hand, significant structural and functional changes have modified the rural environment with the boundaries of cropland areas experiencing a rapid expansion at the expense of northern natural forests and rangelands; and on the other, native gene pools are increasingly threatened by hybrids and commercial varieties which are more attractive relative to landraces. …”
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Pore morphology reveals interaction of biological and physical processes for structure formation in soils of the semiarid Argentinean Pampa por Fernandez, Romina, Frasier, Ileana, Quiroga, Alberto Raul, Noellemeyer, Elke

“…Soils under Ag use had lower carbon and nitrogen content, they also had lower total porosity and macroporosity compared to the NV soils, and the predominant shape of macropores was round. This change in the distribution and shape of the pores led to lower rates of infiltration and lower hydraulic conductivity, higher bulk density and greater resistance to penetration. …”
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