Anatomical Changes in Prosopis tamarugo Phil. Seedlings Growing at Different Levels of NaCl Salinity

Seedlings of Prosopis tamarugo were grown in artificial substrates with additions, of 200, 400 and 600 mm NaCl, and without salt treatment. Salinity induced anatomical changes in the roots, stems and leaflets. The diameters of the roots of seedlings grown in the increasing salt concentrations (up to 400 mm) were progressively smaller and differentiation of the stelar tissues was delayed. At an NaCl concentration of 600 mm, the root structure was strongly altered. On the contrary, stem diameter increased as salinity rose (...)