Osmotic and Specific Ion Effects on the Germination of Prosopis strombulifera

Abstract

Different responses to different compositions of iso-osmotic salt solutions and to both osmotic agents indicate specific ionic effects. This study demonstrates that the germination of P. strombulifera is strongly influenced by the nature of the ions in the salt solutions and their interactions. Comparative studies of Cl(-) and SO(4)(2-) effects and the interaction between SO(4)(2-) and Cl(-) in salt mixtures indicate that extrapolation of results obtained with monosaline solutions in the laboratory to field conditions can be speculative.

Effect of osmopriming on germination and initial growth of Physalis angulata L. under salt stress and on expression of associated genes

“…In most plant species salinity affects germination and development of the seedling, which is considered the developmental stage that is most sensitive and vulnerable to abiotic stresses (Sosa et al 2005, Belaqziz et al 2009). Delay of germination (Foolad 2004) and growth inhibition due to salinity are caused by low external water potential, ion imbalance and specifi c ion toxicity (Munns 2002, Khajeh-Hosseini et al 2003, Miranda et al 2010.…”

Growth responses to sulfate and chloride are related to different phytohormone profiles in the halophyte Prosopis strombulifera

“…In many countries, NaCl and Na 2 SO 4 are the most abundant salts (Manivannan et al, 2008). In high-salinized soils of southern Cordoba and southwestern San Luis provinces, Argentina, proportions of these two salts are generally similar, although Sosa et al (2005) found that Na 2 SO 4 was up to three times more abundant in some soil samples. It is important to compare the effects of both salts on plant growth for a better understanding of plant physiological responses to these environments.…”

Bacterias promotoras de crecimiento de plantas autóctonas y su efecto en Prosopis chilensis (Molina) Stunz

“…(Sosa et al, 2005;Villagra y Bruno, 2005;Reginald et al, 2007). Sin embargo, resultados mostrados por las bacterias promotoras de crecimiento de plantas en condiciones de salinidad no se han reportado.…”

“…(Sosa et al, 2005;Villagra and Bruno, 2005;Reginald et al, 2007). However, results shown by the plant growth-promoting bacteria under salinity conditions have not been reported.…”