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Mostrando ítems 333-352 de 762
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Flow cytometry : a useful tool measuring ploidy in Passiflora breeding programs
(2016-12)La citometría de flujo en plantas permite un análisis rápido y sencillo del material genético de las plantas. Para aplicar este método a plantas del género Passiflora, se pica finamente una porción de hoja y se pasa por ... -
Focos de calor en Santiago del Estero: su comportamiento en 21 años de estudio.
(Colegio de Graduados en Ciencias Forestales de Santiago del Estero, 2023-08-18)Los incendios son fenómenos capaces de modelar los paisajes (DellaSala y Hanson, 2015). En la región Chaqueña de Argentina, son eventos ecológicos recurrentes (Di Bella et al., 2006; Di Bella et al., 2011; Kunst, 2011; ... -
Forest browning trends in response to drought in a highly threatened mediterranean landscape of South America
(Elsevier, 2020-08)Deforestation is widely studied throughout the world. However, a less evident issue is the effect of climate change and drought on remnants of native forests. The objective of this work was to understand the geographic ... -
Forest strips increase connectivity and modify forests functioning in a deforestation hotspot
(Elsevier, 2021-04-28)Land use changes are occurring with unprecedented magnitude and intensity, imposing global impacts on ecosystem services (ES) and biodiversity. While the impacts of land use changes are increasingly recognized, understanding ... -
La fotooxidación en la semilla de sauce y sus consecuencias en la imbibición y formación de la plántula
(Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2012-06)A diferencia de lo que ocurre en una semilla ortodoxa típica, los tejidos embrionarios de las semillas de sauce (Salix nigra L.) presentan cloroplastos que no desdiferencian durante la maduración del secado, por lo que ... -
Frog body condition: Basic assumptions, comparison of methods and characterization of natural variability with field data from Leptodactylus Latrans
(2020-01-08)Body weight and snout-vent length (SVL) data of 3006 individual Leptodactylus latrans frogs collected over ten years in the Pampa Region of Argentina were analyzed to evaluate the best approach for expressing body condition ... -
Frog somatic indices: Importance of considering allometric scaling, relation with body condition and seasonal variation in the frog Leptodactylus latrans
(Elsevier, 2020)Snout-vent length (SVL) and liver, gonad, fat bodies and carcass weight data from 661 individual Leptodactylus latrans frogs collected over ten years in the Pampa Region of Argentina were analyzed to evaluate the best ... -
From Kyoto to Paris: Measuring renewable energy policy regimes in Argentina, Brazil, Canada, Mexico and the United States
(2019-04)There are numerous strategies to lower greenhouse gas (GHG) emissions or to mitigate global climate change. One of them is to promote polices for developing renewable energy sources. There has been a growth in such policies ... -
Functional syndromes as indicators of ecosystem change in temperate grasslands
(Elsevier, 2018-09-24)The lack of an organizing conceptual framework to address ecosystem changes reduces our capacity to distinguish biophysical from direct human impacts on grassland dynamics. This is particularly important for subhumid ... -
Fusarium branch blight on highbush blueberry in Argentina
(2014-12)In Argentina, highbush blueberry (Vaccinium corymbosum) is grown in Tucumán, Entre Ríos and Buenos Aires provinces. In the 2010 to 2011 cropping season, a new disease with 10% incidence was observed on the foliage of ... -
Future Land-Use Changes and the Potential for Novelty in Ecosystems of the United States
(2015-12)Rapid global changes due to changing land use, climate, and non-native species are altering environmental conditions, resulting in more novel communities with unprecedented species combinations. Understanding how future ... -
Generación de mapas de capacidad de retención de agua útil en la Región Chaco - Pampeana Argentina
(Asociación Argentina de la Ciencia del Suelo, 2022-11-15)La disponibilidad de agua en el suelo condiciona sensiblemente la producción de cultivos agrícolas y forrajeros. En general, la capacidad de retención de agua útil (CRA) de los suelos varía fundamentalmente según su ... -
Genesis of subtropical soils with stony horizons in NE Argentina: Autochthony and polygenesis
(Elsevier, 2009-03)Deep red soils, combining characteristics of highly weathered materials together with a significant degree of clay illuviation and with stony horizons close to the saprolite, are found in the Province of Misiones, northeastern ... -
Genetic and physical mapping of the earliness perse locus Eps - Am1 in Triticum monococcum identifies early flowering 3 (ELF3) as a candidate gene
(2016-07)Wheat cultivars exposed to optimal photoperiod and vernalization treatments still exhibit differences in heading time. This variation, known as earliness per se (Eps), is important for the fine-tuning of flowering and the ... -
Genetic diversity and differentiation among Prosopis alba (Leguminosae) populations from dry valleys of Bolivia with different levels of human disturbance and altitude
(Wiley, 2018-10-31)The fast expansion of human population around La Paz, Bolivia (3,200–4,100 m.a.s.l.) triggered new suburban settlements in nearby areas in valleys and mountain feet. The white mesquite, Prosopis alba Griseb. (Leguminosae), ... -
Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina
(Oxford University Press, 2018-11)Genetic parameters for growth, stem straightness, and branch quality were estimated in five progeny trials of Pinus elliottii var. elliottii (PEE) × Pinus caribaea var. hondurensis (PCH) F1 hybrid measured at ages three, ... -
Genetic structure in cultivated quinoa (Chenopodium quinoa Willd.), a reflection of landscape structure in Northwest Argentina
(Springer, 2012-08)Quinoa (Chenopodium quinoa Willd.), one of the main crops domesticated in the Andean highlands 1,000 of years ago, played an important role as a protein source. 35 germplasm accessions collected along the Northwest Argentina ... -
Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co- occurring in oases of the Atacama Desert (northern Chile)
(Wiley, 2021-03-01)In the Atacama Desert from northern Chile (19– 24°S), Prosopis (Leguminosae) individuals are restricted to oases that are unevenly distributed and isolated from each other by large stretches of barren landscape constituting ... -
Genetic variability of Araucaria angustifolia in the Argentinean Parana Forest and implications for management and conservation
(2018-08)The main forces shaping genetic variability of woody species in fragmented forest are the geographical distribution and demographic history of populations. We conducted molecular analyses to evaluate how these factors have ... -
Genome size in Argentinean species of Passiflora genus: cytological and phenotypical correlates
(Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2023-09)El género Passiflora es el más grande dentro de la familia Passifloraceae con numerosas especies y gran variabilidad fenotípica. Existen diecinueve especies de Passiflora nativas de Argentina distribuidas en cuatro subgéneros: ...