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Mostrando ítems 2590-2609 de 16471
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Changes in forest structure values along the natural cycle and different management strategies in Nothofagus antarctica forests
(Elsevier, 2021-04-15)Ecologically sustainable forest management aims to preserve ecosystem integrity by providing wood and non-wood values. For this, it is necessary to determine the losses produced by the different management practices in ... -
Changes in hematological, biochemical, and blood gases prameters in response to progressive inclusion of nitrate in the diet of Holstein calves
(Veterinary World Publisher, 2021-01)Background and Aim: Nitrate (NO3-) reduces enteric methane emissions and could be a source of non-protein nitrogen in ruminant feeds. Nonetheless, it has a potential toxic effect that could compromise animal health and ... -
Changes in leaf size and in the rate of leaf production contribute to cytokinin-mediated growth promotion in Epipremnum aureum L. cuttings
(2013)The growth of ornamental foliage plants is often limited by pot size, which exerts a restriction on root growth and, therefore, on the production of root-synthesised cytokinins which play key regulatory roles in the ... -
Changes in leaf stomatal conductance, petiole hydraulics and vessel morphology in grapevine (Vitis vinífera cv.Chasselas) under different light and irrigation regimes
(2017)Hydraulic conductance and water transport in plants may be affected by environmental factors, which in turn regulate leaf gas exchange, plant growth and yield. In this study, we assessed the combined effects of radiation ... -
Changes in micro RNA expression in a wild tuber-bearing Solanum species induced by 5-Azacytidine treatment
(2012-08)Phenotypic plasticity is often postulated as a principal characteristic of tuber-bearing wild Solanum species. The hypotheses to explore this observation have been developed based on the presence of genetic variation. In ... -
Changes in microbial and physicochemical properties under cover crop inclusion in a degraded common bean monoculture system
(Elsevier, 2021-12)The expansion of the common bean monoculture system along with intensive agricultural practices focused on productivity has generated a misuse of natural resources, accompanied by a significant decline of the soil ecosystem ... -
Changes in number and weight of wheat and triticale grains to manipulation in source-sink relationship
(Hindawi, 2019-01)The source-sink ratio experimental manipulation has helped to define whether a crop is limited by source or sink or co-limited by both. There is no evidence in triticale of source-sink manipulations effects on yield and ... -
Changes in nutrient and fibre tissue contents in Nothofagus pumilio trees growing at site quality and crown class gradients
(Elsevier, 2022-02-01)Estimation of biomass and nutrient contents in tree components are essential for evaluating the impact of harvesting on carbon fixation capacity, bio-element recycling, and long-term effect on the balance that influence ... -
Changes in soil biological properties in different management and tyllage systems in petrocalcic argiudoll
(Elsevier, 2020-12)We analyzed the effect of different tillage systems on soils under different land-use histories, on biological properties of soil during one year. The experiment was carried out at a Petrocalcic Argiudoll of Tres Arroyos ... -
Changes in soil characteristics after six seasons of cereal–legume intercropping in the Southern Pampa
(Elsevier, 2015-04)The Argentine Pampa is one of the most productive agricultural regions in the world, but sole crop management practices have led to soil degradation and losses of soil organic matter. The objective of this study was to ... -
Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
(Elsevier, 2021-06-17)Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects ... -
Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
(Wiley, 2022-02)Glyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application ... -
Changes in soil phosphorus (P) fractions and P bioavailability after 10 years of continuous P fertilization
(Elsevier, 2023-08)Phosphorus fertilization modify soil P fractions differing in availability, but little is known about bioavailability of these pools for the crops when increasing P fertilizer rates in the medium term. Our objectives were ... -
Changes in soil phosphorus in different forest residue management
(INIA Uruguay y Facultad de Agronomía, Universidad de la República, 2012)We analyze the short term effect of the harvest residues management on the Phosphorus (P) fractions of the soil. Four trials were installed in Northeast Argentina on Vertisols (S1), Mollisols (S2) and Entisols (S3 and S4). ... -
Changes in spider diversity through the growth cycle of pine plantations in the semi-deciduous Atlantic forest: The role of prey availability and abiotic conditions
(2018-09-15)The replacement of native forests by tree plantations affects the diversity of biological communities, particularly in highly diverse tropical and subtropical ecosystems such as the semi-deciduous Atlantic forest. Previous ... -
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 ... -
Changes in the relationship between temperature during the seed‐filling period and soya bean seed isoflavones under water‐deficit conditions
(Blackwell, 2016-12)Isoflavones have been shown to have health‐promoting activities in humans and are particularly abundant in soya bean. This study was conducted to determine how water deficit during seed fill affects the already known ... -
Changes in the vaginal microbiota in ewes after insertion of intravaginal sponges at different stages of the oestrous cycle
(2018)The aims of this study were to determine if the ewe’ vaginal bacterial load differs according to the stage of the oestrous cycle; and thus, if the stage of the oestrous cycle when intravaginal sponges (IS) used for ... -
Changes in the volatile profile of four cultivars of quince (Cydonia oblonga) produced by codling moth (Cydia pomonella) infestation
(Elsevier, 2022-06)The production of quince (Cydonia oblonga Miller) is affected worldwide by codling moth (Cydia pomonella L.), an oligophagous pest. In this study, volatile compounds in healthy and infested fruits were collected from four ... -
Changes in vegetation seasonality and livestock stocking rate in La Pampa Province (Argentina) = Cambios en la estacionalidad de la vegetación y la carga animal en la provincia de La Pampa (Argentina)
(Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2019)Crop production is traversing expansion and intensification processes all over the planet and in consequence the large scale cattle production is being displaced to marginal lands with lower stocking capacity. The objective ...