Effects of Heavy Metals and pH Value on Seed Germination of Burma Reed
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    Abstract:

    Burma reed (Neyraudia reynaudiana) is a perennial grass which has the capacity of strong tolerance to drought, leanness, high temperature, and acid. It is a pioneer plant in natural vegetation restoration in the deserted area resulted from water erosion, mining area, stone pit , and slope. In order to explore the feasibility of ecological restoration with burmareed in various mining areas and the heavy metal contaminated area, germination ability of burma reed seed stressed by different concentrations of Hg2+, Cr6+, Cd2+, Pb2+, Zn2+, and Cu2+ , as well as different pH values was studied by labg ermination test . Results showed that burma reed seed can well germinate between pH 5.0~ 9.0. Inhibiting effect of the heavy metals on burmareed seeds increased with increase of heavy metal concent ration. The order of the heavy metals, by the lowest concent ration which leaded to inhibition, was Cd2+ < Cu2+ < Hg2+, Zn2+ and Cr6+ < Pb2+. The concent rations of the heavy metals which affected obviously burma reed seed vigor were lower than the concent rations which affected obviously burma reed seed germination percentage, germination vigor, and germination index . This indicates that seedling is more sensitive to the heavy metals than germination.

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冯宏,戴军,李永涛,郭彦彪.重金属和pH值对类芦种子萌发的影响[J].水土保持通报英文版,2010,(6):96-99

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History
  • Received:March 01,2010
  • Revised:May 28,2010
  • Adopted:
  • Online: November 26,2014
  • Published: