This paper reported response of Puccinellia regrowth to soil salinity and salt tolerance limit of the plant. Regrowth has a strong negative correlation with soil surface salinity (r=0.84) and a weak positive correlation with top soil water content (r=0.25). Salt tolerance limit for regrowth is 2.42% of soil salt content, higher than the critical salinity level for seed germination. It has revealed that Puccinellia can secrete salt from its leaves and stems. It has discovered some mechanism of salt tolerance...