JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2005, Vol. 29 ›› Issue (06): 31-34.doi: 10.3969/j.jssn.1000-2006.2005.06.008

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Effects of Soil Salt Stress on the Metal Ions Absorption and Distribution in Three Warm-season Turf grasses

ZHOU Xing-yuan1, CAO Fu-liang2   

  1. 1. Jiangsu Agricuhture and Forestry Polytechnic College, .lurong 212400, China; 2. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
  • Online:2005-12-18 Published:2005-12-18

Abstract: The contents of 5 metal ions in root, shoot and leaf of three warm-season turfgrasses in soil salt stress were studied. The results showed that with salt stress aggrevating, content of Na+ increased in root, leaf and shoot, and the proportion of Na+ in shoot and leaf increased remarkably. Under the same concentration of salt stress, the content of Na+ of Centipedegrass was higher than those of Zoysiagrass and Manilagrass. The difference of Na+concentration between Zoysiagrass and Manilagrass was unremarkable with low concentration of salt treatment, but under 0.8G salt treatment, the content of Na+ in Zoysiagrass was higher than that in Manilagrass. Keeping high K+ concentration could be one way to get high salt tolerance of Zoysiagrass and Manilagrass, while Centipedegrass declined in its salt tolerance with the K+ concentration decreased under salt stress, and its salt tolerance was poor. Fe3+ concentration and RS (K+.Na+) changed trend could be used to estimate the turfgrass salt tolerance.

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