基于导水率对花椒品种抗寒性的评价  

Evaluation on Cold Resistance of Zanthoxylum bungeanum Cultivars Based on Hydraulic Conductivity

作　　者：刘胜元 张春梅 许平 王华田 刘秀梅[1,5] Liu Shengyuan;Zhang Chunmei;Xu Ping;Wang Huatian;Liu Xiumei(Key Laboratory of State Forestry and Grassland Administration for Silviculture in Downstream Areas of the Yellow River,Taian 271018,China;College of Forestry,Shandong Agricultural University,Taian 271018,China;College of Forestry,Central South University of Forestry&Technology,Changsha 410004,China;Natural Resources and Planning Bureau of Zoucheng City,Zoucheng 273599,China;Shanghai Environment School,Shanghai 200135,China)

机构地区：[1]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271018 [2]山东农业大学林学院,山东泰安271018 [3]中南林业科技大学林学院,湖南长沙410004 [4]邹城市自然资源和规划局,山东邹城273599 [5]上海市环境学校,上海200135

出　　处：《山东农业科学》2021年第12期58-63,共6页Shandong Agricultural Sciences

基　　金：山东省重点研发计划(林业科技创新)项目“优良乡土树种高效培育与示范”(2019LY001)子课题“花椒良种选育与高效栽培技术集成”;山东省农业科技基金项目(林业科技创新2019LY004)。

摘　　要：为评价不同花椒品种枝条的抗寒性,通过低温胁迫模拟试验,测定6个不同花椒品种枝条导水率,阐明导水性指标在低温胁迫下的变化,探讨不同花椒品种枝条的抗寒能力。结果表明,随着温度降低,各花椒品种枝条导水性能均有不同程度下降。运用Logistic曲线方程计算得到各花椒品种枝条的木质部半栓塞温度LT_(50)为-5.35~-33.47℃,其中‘狮子头’的LT_(50)最低,‘黄盖’的LT_(50)最高。隶属函数评价结果表明,6个花椒品种枝条的抗寒能力为‘狮子头’>‘西农无刺’>‘少刺大红袍’>‘黄盖’>‘无刺椒’>‘仡劳无刺’。因此,花椒种植可根据枝条的抗寒情况合理布局品种。In order to evaluate the cold resistance of branches of different Zanthoxylum bungeanum cultivars,the hydraulic conductivities of branches of six cultivars were measured through low temperature stress simulation test,the change of water conductivity indexes under low temperature stress was expounded,and the cold resistance of different cultivar branches was discussed.The results showed that the water conductivities of different cultivar branches decreased to varying degrees with the decrease of temperature.Through Logistic equation,the half-embolization temperature(LT_(50))of the branches was obtained as-5.35~-33.47℃,among which,that of‘Shizitou’was the lowest,while that of‘Huanggai’was the highest.The results of membership function evaluation showed that the cold resistance of the six cultivar was in the order of‘Shizitou’>‘Xinong Wuci’>‘Shaoci Dahongpao’>‘Huanggai’>‘Wucijiao’>‘Gelao Wuci’.Therefore,in the process of planting Z.bungeanum,cultivars could be rationally arranged according to the cold resistance of branches.

关 键 词：花椒 低温胁迫 抗寒性 导水率 LOGISTIC方程 隶属函数评价 

分 类 号：S573.01[农业科学—作物学]