Abstract:

In this study, red fescue (Festuca rubra L.) and ryegrass (Lolium perenne L.) were used as materials to study the change of the cell membrane permeability, proline content, MDA content as well as the changes of activities of superoxide dismutase, peroxidase and catalase after the treatment of exogenous SA under the 1% salt stress. The results showed that spraying salicylic acid was able to increase the content of proline and soluble sugar and to reduce the penetration rate of the electrolyte and the MDA content, and enhance the enzyme activity of the SOD, POD, and CAT. The best effective concentration of salicylic acid was 200 mg/L. Key words: salicylic acid; salt stress; turfgrass; Lolium perenne; Festuca rubra