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Mostrando ítems 11663-11682 de 13279
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Securing water for trees and people : possible avenues
(2011)In the context of water scarcity, threats on forest survival in drier areas, and thus of inevitable trade-off between man and nature for the use of water, this section addresses three main questions of importance for ... -
Sediment and nutrient deposition in different riparian forests and floods of the Middle Paraná River
(Wiley, 2019-10)Sedimentation processes are important to the dynamics of lowland fluvial systems and depend on the characteristics of floods and of riparian ecosystems. The few known studies for the Paraná River system analyzed only summer ... -
Seed dormancy responses to temperature relate to Nothofagus species distribution and determine temporal patterns of germination across altitudes in Patagonia
(2015-08-26)Seeds integrate environmental cues that modulate their dormancy and germination. Although many mechanisms have been identified in laboratory experiments, their contribution to germination dynamics in existing communities ... -
Seed fall and leaf litter relationships in Nothofagus pumilio forests: changes according to retention levels and years after harvesting
(Springer, 2023-04)Seed fall and leaf litter influence forest regeneration, nutrient cycling, and other key ecological processes closely related to forest management. In Patagonian forests, variation of both managed and unmanaged forests ... -
Seed germination of common and endangered arable weed species is differently affected by the herbicide metazachlor and its transformation products
(Wiley, 2023-03)High inputs of herbicides have caused the decline of arable weed species, which formerly evolved under less intensively managed crop lands. Arable weed species have adapted their germination strategies to respond to ... -
Seed germination of five Prosopis shrub species (Fabaceae-Mimosoideae) from the Monte and Patagonia phytogeographic provinces of Argentina
(2017-12)The Patagonian species of the genus Prosopis exhibit distinctive features such as their shrub growth pattern. However, morphological or physiological differences among them have been poorly studied (e.g., germination). ... -
Seed responses to temperature indicate different germination strategies among Festuca pallescens populations from semi-arid environments in North Patagonia
(Elsevier, 2019-04)Seed germination is one of the earliest phenotypes expressed by plants, and the accuracy to germinate in the correct time and place is essential for plant population fitness. Cues that regulate germination have been ... -
Seed weight and trade-offs: an experiment in false rhodes grasses under different aridity conditions
(MDPI, 2022)The false Rhodes grasses [Leptochloa crinita (Lag.) P.M. Peterson and N.W. Snow and Leptochloa pluriflora (E. Fourn.) P.M. Peterson and N.W. Snow] are considered valuable native forage resources for arid and semiarid ... -
Seed yield determination of peanut crops under water deficit: Soil strength effects on pod set, the source–sink ratio and radiation use efficiency
(Elsevier, 2008-06-10)Peanut (Arachis hypogaea L.) production in Argentina is affected by frequent and unpredictable periods of water deficit that usually overlap the critical period for pod set of early sown crops. An indirect effect of water ... -
Seed-transmitted Epichloë sp. endophyte alleviates the negative effects of head smut of grasses (Ustilago bullata) on Bromus auleticus
(2017)Some grasses are co-infected by ‘castrator’ fungal pathogens, such as Ustilago bullata, and beneficial seed transmitted Epichlo€e endophytes that compete for plant photosynthates and flowers. Epichlo€e-infected (E+) and ... -
Seeding Resilient Restoration: An Indicator System for the Analysis of Tree Seed Systems
(MDPI, 2021-08-09)Achieving multi-million-hectare commitments from countries around the world to restore degraded lands in resilient and sustainable ways requires, among other things, huge volumes of tree planting material. Seed systems ... -
Seedling drought stress susceptibility in two deciduous Nothofagus species of NW Patagonia
(2010-06)The physiological capacities of seedlings to cope with drought may be subject to strong selective pressure in the context of future climate scenarios, threatening the regeneration and sustainability of forests. Characterization ... -
Seedling growth and water relations of three Cedrela species sourced from five provenances: response to simulated rainfall reductions
(2013-10)The effects of different simulated rainfall regimes on water relations, growth, and biomass production and allocation of five provenances of Cedrela fissilis, C. saltensis and C. balansae were assessed in a pot-grown ... -
Seguimiento de la salinidad en suelos regados por pivotes centrales en 25 de mayo, La Pampa
(Red Argentina de Salinidad, 2023-09-19)Este trabajo determina la evolución espacial y temporal de la salinidad edáfica, a partir de mediciones de conductividad eléctrica en la zona bajo riego de 25 de mayo, La Pampa. -
Seguimiento de verdeos de raigrás anual en establecimientos ganaderos del sur de Corrientes
(EEA Mercedes, INTA, 2021-06-05)La provincia de Corrientes cuenta con ambientes aptos para la implantación de verdeos de invierno, especialmente el centro sur sobre campos de altura y monte de ñandubay. Los verdeos son una alternativa tecnológica válida ... -
Seguimiento del sistema forrajero del centro y oeste de La Pampa. Boletín 1° trimestre 2024
(AER Colonia 25 de Mayo, INTA, 2024-04-15)El boletín se basa en el desarrollo de metodologías de monitoreo de pastizales naturales aplicados a la ganadería extensiva mediante el uso de sensores remotos e índices de vegetación. La adquisición de imágenes corresponden ... -
Seguimiento del sistema forrajero del centro y oeste de La Pampa. Boletín 3° trimestre 2023
(AER Colonia 25 de Mayo, INTA, 2023-10-20)El boletín se basa en el desarrollo de metodologías de monitoreo de pastizales naturales aplicados a la ganadería extensiva mediante el uso de sensores remotos e índices de vegetación. La adquisición de imágenes corresponden ... -
Seguimiento del sistema forrajero del centro y oeste de La Pampa. Boletín 4° trimestre 2023
(AER Colonia 25 de Mayo, INTA, 2024-01-10)El boletín se basa en el desarrollo de metodologías de monitoreo de pastizales naturales aplicados a la ganadería extensiva mediante el uso de sensores remotos e índices de vegetación. La adquisición de imágenes corresponden ... -
Segundo informe técnico: Proyecto ARG 19/004 “Apoyo a la Implementación del Plan Estratégico Nacional para el Manejo Sustentable de palo santo (Gonopterodendron sarmientoi)”
(PNUD-INTA, 2021-03)Este segundo informe trata los siguientes temas: análisis y definición de calidad de sitio o zonas de aptitud forestal para la especie en base a superposición de capas y validación de campo, relación de posibilidades en ... -
Segundo Ordenamiento territorial de los bosques nativos de la provincia de Santa Cruz
(Consejo Agrario Provincial de Santa Cruz (CAP), 2021-05)El Segundo Ordenamiento Territorial de Bosques Nativos (OTBN) de la provincia de Santa Cruz se enmarca con lo dispuesto en el artículo 6 de la Ley Nº 26.331 de Presupuestos Mínimos de Protección Ambiental de los Bosques ...