摘要：以枣树幼苗为试验材料，研究模拟高温胁迫对其叶片电解质渗透率、丙二醛和叶片相对含水量(RWC)的影响。结果表明：高温胁迫对枣树幼苗叶片相对含水量的影响并不显著；高温胁迫下，叶片的电解质渗透率有上升的趋势，且胁迫时间越久，电解质渗透率上升的越高；叶片内丙二醛的变化趋势与电解质渗透率的变化趋势相似，胁迫时间越久，胁迫温度越高，丙二醛的含量越高。
　　关键词：高温胁迫；叶片相对含水量；丙二醛；电解质渗透率
　　　
　　Effect of Heat Stress on Physiological Index of Jujube
　　TIAN Cai-ping1，YAO Yan-tao2
　　(1.Forestry Station ,Taigu Forestry Bureau of Shanxi Province ,Taigu, Shanxi 030800, China;2. Forestry Institute ,Shanxi Agricultural University ,Taigu,Shanxi 030801,China)
　　Ａｂｓｔｒａｃｔ: Experimental material was Jujube seedlings, the impact of heat stress on RWC,Electrolyte leakage and MDA were analyzed. The results showed that heat stress had no significant effect on RWC; electrolyte leakage of heat stress had upward trend, the longer high temperature stress, the higher electrolyte leakage; MDA and electrolyte leakage was similar, the longer and higher temperature stress, the higher content MDA.
　　Key words: heat stress；RWC ；MDA；electrolyt

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