Establishment of Tamarix ramosissima under different conditions of salinity and water availability: Implications for its management as an invasive species

Invasiveness of Cut-Leaf Ground-Cherry (Physalis angulata L.) Populations and Impact of Soil Water and Nutrient Availability

“…The high decrease in vegetative growth rate, stem elongation, and leaf appearance in water-stressed plants is common among several invasive species of arid and semi-arid environments and can be plausibly ascribed to induced loss of turgor, which affects cell expansion rate and ultimately cell size (Acosta-Gallegos and Adams, 1991; Natale et al, 2010;Rahlao et al, 2010). In the case of P. angulata, water-stressed plants had a low stem elongation rate, while water availability had a significantly positive effect.…”

Population genomic analysis suggests strong influence of river network on spatial distribution of genetic variation in invasive saltcedar across the southwestern United States

“…In general, populations connected by rivers were more genetically similar than populations not connected by rivers, likely resulting from seed dispersal by wind and water along river corridors. Saltcedar seeds are dispersed by both water and wind (Baum, 1978;Di Tomaso, 1998), and seed viability and germination rates drop substantially under water deficit (Di Tomaso, 1998;Horton, Mounts, & Kraft, 1960;Hultine & Dudley, 2013;Natale, Zalba, Oggero, & Reinoso, 2010). The cottony hairs of saltcedar also may contribute to more efficient water dispersal as shown in riparian willows, Salix sachalinensis and S. integra (Seiwa et al, 2008).…”

Physiological and Biochemical Responses of Semiarid Plants Subjected to Water Stress

“…These factors may be extreme, so their effects can be crucial in the germination and establishment of plants inhabiting arid and semiarid environments (Kigel, 1995). Germination and seedling establishment, due to their dependence on these external factors, are considered to be the most vulnerable stages (Natale et al, 2010). Several desert species are able to germinate at relatively low soil water potential; however, germinability decreases with the reduction in water availability (Kigel, 1995).…”

“…The osmotic potential contributed to the slowest germination, and vigor was more affected than germination (which was more affected in the first counting than in the final germination) (Oliveira et al, 2010). The germination and seedling establishment of Tamarix ramosissima, which constitutes one of the most successful groups of invasive plants in desert riparian ecosystems in the United States, was assessed under different conditions of water availability by Natale et al (2010). This species seems to be more sensitive to water deficit than to the presence of salts in the substrate.…”