Abstract: Anthurium plants were sprayed with 0, 100, 200, 300, 400 and 500 mg·L-1 salicylic acid(SA) separately under 25℃ for 1 d, then plants were treated under 6 ℃ for 2 d, and the relative electric conductivity (REC) were determined. The results indicated that REC decreased 20.38% in plants sprayed with 300 mg·L-1 SA compared with controls, and the effect on cold resistance were significant. Plants treated with 300 mg·L-1 SA under 25℃ for 1 d and then 6 ℃ for 2 d were used for the later experiments. The effects of low temperature on REC, malondialdehyde (MDA) and proline content, and activities of catalase (CAT), peroxidases (POD) and superoxide dismutase (SOD) were determined. The results showed that SA treatment could decrease REC and MDA content, enhance the accumulation of proline, increase the activities of SOD and CAT, and improve the stability of POD activities. SA treatment could increase the activities of antioxidant enzymes and the content of proline, decrease the reaction of membrane lipid peroxidation and the degree of membrane damage, and enhance the ability of chilling resistance in Anthurium plants．

Key words: salicylic acid, Anthunium andraenum, low stress, chilling resistance