3个栾树品种抗寒性比较及生理指标变化  

Research on Cold Resistance of Three Koelreuteria paniculate Varieties

作　　者：刘金秋 曹帮华[2] 任永俊[3] 王世栋 段正洪 高莉 王桂苓 孙丰胜 LIU Jinqiu;CAO Banghua;REN Yongjun;WANG Shidong;DUAN Zhenghong;GAO Li;WANG Guiling;SUN Fengsheng(Shandong Institute of Geological Sciences,Jinan Shandong 250013;Shandong Agricultural University,Key Laboratory of Forest Cultivation of the Lower Yellow River,State Forestry and Grassland Administration Taiwan Shandong 271001;Lishan Street Road Office of Yiyuan County,Zibo Shandong 256199;Hongning Sub-district Office of Wulian County,Wulian Shandong 262300;State owned Xigang nursery in Tengzhou City,Tengzhou Shandong 277519;Land space Planning Institute of ShandongProvincial,Jinan Shandong 250100;Dongping County Forest Nursery Management Service Center,Dongping Shandong 271509)

机构地区：[1]山东省地质科学研究院,山东济南250013 [2]山东农业大学黄河下游森林培育国家林业和草原局重点实验室,山东泰安271001 [3]淄博市沂源县历山街道办事处,山东淄博256199 [4]五莲县洪凝街道办事处,山东日照262300 [5]滕州市国有西岗苗圃,山东滕州277519 [6]山东省国土空间规划院,山东济南250014 [7]东平县林种苗圃管理服务中心,山东东平271509

出　　处：《山东林业科技》2021年第4期21-25,共5页Journal of Shandong Forestry Science and Technology

基　　金：山东省林业科技创新项目“优良乡土品种高效培育与示范”(2019LY001)。

摘　　要：以南栾(Koelreuteria bipinnata Franch)无性系"滕选"4号、5号为材料,以北栾(Koelreuteria paniculata)为对照,采用人工低温胁迫方法,研究抗寒性差异及生理指标变化。结果表明:随着胁迫温度降低,不同品种枝条相对电导率持续升高;"滕选"4号、5号、北栾低温半致死温度分别为-20.895℃、-18.723℃、-27.549℃;3种栾树的SOD活性、脯氨酸含量、可溶性糖、可溶性蛋白、MDA含量表现出不同的变化且与对照差异显著;2个选育的南栾无性系"滕选"4号、5号抗寒性低于北栾,但能够在山东省范围内正常越冬。Koelreuteria bipinnata Franch clones"Tengxuan"No.4 and No.5 were used as the materials,and Koelreuteria paniculata were used as the control.The differences in cold resistance and changes in physiological indexes were studied by artificial low temperature stress method.The results showed that with the decrease of stress temperature,the relative electrical conductivity of different varieties of branches continued to increase.The semi-lethal temperature of"Tengxuan"No.4,No.5 and Koelreuteria paniculata was-20.895℃,-18.723℃and-27.549℃,respectively.The SOD activity,proline content,soluble sugar,soluble protein and MDA contents of the three species of Koelreuteria paniculata showed different changes and significant differences with the control.The cold resistance of"Tengxuan"No.4 and No.5 were lower than that of Koelreuteria paniculata,but they could survive the winter normally in Shandong Province.

关 键 词：栾树 低温胁迫 抗寒性 生理指标变化 

分 类 号：S722.5[农业科学—林木遗传育种]