Buscar
Mostrando ítems 1-10 de 60
Bud viability in perennial grasses: Water stress and defoliation effects
(Society for Range Management, 2002-03)
Effects of the timing and frequency of defoliation under different levels of soil water availability were evaluated on bud metabolic activity and subsequent outgrowth in the desirable (i.e., palatable) Stipa clarazii Ball. ...
Nassella tenuis (Phil.) Barkworth
(Universidad Nacional de Cordoba. Facultad de Ciencias Exactas, Fisicas y Naturales; Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto Multidisciplinario de Biologia Vegetal, 1870)
Mendoza
Soluble phenolics extracted from Larrea divaricata leaves modulate soil microbial activity and perennial grass establishment in arid ecosystems of the Patagonian Monte, Argentina
(Springer, 2019-03)
Sheep grazing induces the reduction of perennial grass cover and the increase of shrub cover with high concentration of chemical defences. We analysed the effects of secondary metabolites released from green and senesced ...
Effects of biological soil crust and water availability on seedlings of three perennial Patagonian species
(Academic Press Ltd - Elsevier Science Ltd, 2016-02)
Biological soil crusts are communities composed of mosses, lichens and cyanobacteria. They cover a large portion of the arid and semiarid regions of the world and play key roles in nutrient cycles and soil erosion diminution. ...
Sinopsis de las especies austro-americanas del género Nassella (Poaceae, Pooideae, Stipeae)
(Instituto de Botánica Darwinion, 2013-07)
Nassella is an American genus which, according to its current circumscription, includes about 116 species, distributed from Canada to Argentina and Chile. It is characterized by its florets with the lemma conspicuously ...
Plant species and defoliation effects on soil nitrogen mineralization in a semiarid rangeland of Argentina
(Springer, 2021-09)
The objective of this study was to evaluate the effects of moderate defoliation and grass species on soil nitrogen (N) mineralization in a semiarid grassland of northeastern Patagonia, Argentina. Studied species were Poa ...
Communities of arbuscular mycorrhizal fungi associated with perennial grasses of different forage quality exposed to defoliation
(Academic Press Ltd - Elsevier Science Ltd, 2018-07)
Vegetation management practices, such as defoliation may alter the composition of plant communities and/orthe fungi-forming arbuscular mycorrhiza (AMF). We determined the species identity, density, frequency anddiversity ...