Abstract
The growth response to NaCl or KCl treatment containing 2mM K or 2mM Na, respectively, in the medium and Na or K absorption characteristics of Suaeda salsa which is distributed on saline soil in China were investigated. The maximum growth to NaCl was attained at 50-100mM in NaCl experiment and that to KCl 2mM in KCl experiment. The growth at 200mM NaCl was similar to that at 2mM NaCl. While that at 200mM KCl was inhibited. K content of shoot in KCl experiment was higher than Na of shoot in NaCl experiment. The decrease of K content with the increase of NaCl concentration was smaller than that of Na with the increase of KCl concentration. These results suggest that S.salsa which adapted to saline soils developed a high K absorption function that can absorb K from low K high NaCl conditions.
