Abstract: [Objective] To compare the differences of drought-resistant ability in different origin wild jujubes in order to provide the theoretical basis for filtrating admirable rootstock and breeding new varieties of jujube.[Method]Using method of field persistent drought resistance in 15 kinds of different origin wild jujubes, through the test of 1 year old leaf physiological indexes, and then converted into the index of drought resistance, and then further converted into membership function value, finally the index membership average value was taken as the comprehensive evaluation standards of the drought resistance of wild jujube.[Result]It was found that 6.7 percent of the 15 kinds of different origin wild jujube belonged to the stronger drought resistance, 53.3 percent belonged to secondary drought resistance, 33.3 percent belonged to the lower drought resistance.In the osmotic regulators and physiological indexes of jujube antioxidant enzyme, proline and SOD in any conditions could be used to evaluate drought resistance of plants or as identification index.[Conclusion]The wild jujube in Yi County of Hebei Province (HB1) has quite strong drought resistance, followed by those in Qingjian and Mizhi County in Shanxi Province.

摘要： [目的]比较不同产地酸枣的抗旱能力差异,为筛选优良的枣树砧木和选育新品种提供理论依据.[方法]采用田间持续干旱法对不同产地15种酸枣实施胁迫,通过测试其1年生枝条叶片的生理指标,并换算成抗旱系数,再将抗旱系数换算成隶属函数值,取各指标隶属度平均值作为酸枣抗旱性强弱的综合评定标准.[结果]不同产地的15个酸枣类型中,属于较强抗旱类型的1个占6.7;,中抗性的8个占53.3;,低抗性的5个占33.3;,其中无抗旱能力的只有1个占6.7;;在酸枣渗透调节物质和抗氧化物酶的生理指标中,脯氨酸和SOD无论在任何条件下,均可作为植株抗旱性强弱评价或鉴定的指标.[结论]河北易县(HB1)的酸枣具备较强抗旱能力,其次是陕西清涧和米脂.