3.2.7 Effects of Salinity on Mineral Ion Contents
K+ ion concentration increased at all NaCl
concentrations in comparison with the non-stressed shoots.
K+ content was high in the 150 and 300 mM NaCl treated
shoots. Na+ and Cl- contents
increased gradually with the enhanced NaCl concentrations as compared to
0 mM NaCl treatment. The highest Na+ and
Cl- contents were detected in the shoots exposed to
600 mM NaCl. Ca2+ and Mg2+ ion
contents significantly increased in all salt treatments as compared with
non-saline condition. The highest increases in Ca2+and Mg2+ contents were determined in the 600 mM NaCl
treated shoots and the rate of increase of both Ca2+and Mg2+ was recorded by 3.3-fold (Table 3).