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Chinese Journal of Applied Ecology ›› 2002, Vol. ›› Issue (2): 141-144.

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Chlorobenze-stressing injury of the germination of soybean seed

LIU Wan1, SUN Tieheng1, ZHOU Qixing1, LI Peijun1, XU Huaxia1, YANG Guifen1, ZHANG Hairong1, QI Peng 2   

  1. 1. Open Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016;
    2. Biology Department of Liaoning University, Shenyang 110036
  • Received:2001-07-19 Revised:2001-08-02 Online:2002-02-15

Abstract: Effects of various doses of 1,2,4-trichlorobenze on seed germination and seedling growth of soybean were studied.The results indicated that 50~200 μg·g-1 of 1,2,4-trichlorobenze had no effect on the percentage of seed germination,but delayed the rate of seedling growth.The seed germination was stopped by 300μg·g-1 of 1,2,4-trichlorobenze.The most activity of SODtook place on the 4th day after sowing of soybean seed in the normal condition,then tended to be in a certain level with a little alteration.Under the various dose stress of 1,2,4-trichlorobenze,the activity of SODin soybean hypocotyl was decreased,while MDAand protein contents as well as diameter of hypocotyls increased.Seedlings growth,fresh weight(FW),dry weight(DW)were inhibited,while the ratio of FW/DWdidn't change.Damage-level of wheat seedlings was increased with increasing1,2,4-trichlorobenze concentrations.Roots were more sensitive to 1,2,4-trichlorobenze-stress than hypocotyls.

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