Effects of different saline stress on seed germination of tall fescue

The experiment was conducted to determine the effect of different concentrations solution with NaCl, Na2CO3, Na2SO4, mixture of NaCl and Na2CO3, mixture of NaCl, Na2CO3 and Na2SO4 on germination rate, germination power, germination index, and vigor index of tall fescue seeds. The results of this study showed that the low concentration salt solution did not affect the germination of Tall Fescue seeds but the high concentration salt solution significantly inhibited the germination of Tall Fescue seeds. With the increasing of salt concentration, the germination rate, germination power, germination index, vigor index of tall fescue seeds decreased, and the root and shoot growth of seedlings reduced obviously. The order of seed germination restrained by different salt treatments was Na2SO4mixture of NaCl+Na2CO3+Na2SO4NaClmixture of NaCl+Na2CO3Na2CO3.