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Acta Prataculturae Sinica ›› 2013, Vol. 22 ›› Issue (1): 225-233.

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A study on resistance and purifying ability of SO2 on four warm-season turfgrasses

WANG Li-hua1, LI Xi1, LIU Wei2, GAN You-min3   

  1. 1.College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China;
    2.College of Forestry, Sichuan Agricultural University, Ya’an 625014, China;
    3.Department of Grassland Science, Sichuan Agricultural University, Ya’an 625014, China
  • Received:2012-01-04 Online:2013-01-25 Published:2013-02-20

Abstract: The influence of sulfur dioxide (SO2) on four warm-season turfgrasses [centipedegrass (Eremochloa ophiuroides), zoysiagrass (Zoysia japonica), bahiagrass (Paspalum notatum), bermudagrass (Cynodon dactylon)] were studied using fumigation to apply five SO2 treatments: CK (Natural state), S1 (1.5 mg/L), S2 (2.25 mg/L), S3 (3 mg/L) and S4 (3.75 mg/L). There was a negative correlation between total chlorophyll and SO2 concentration but positive correlations between soluble protein, malondialdehyde, proline, peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), leaf sulfur content and SO2 concentration; The soluble protein content increased except for bermudagrass. By the fuzzy membership function, the resistance of four turfgrasses to SO2 was in the order: bermudagrass>zoysiagrass>bahiagrass>centipedegrass; and the purifying ability was in the order: zoysiagrass>bahiagrass>bermudagrass>centipedegrass.

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