电导法对8种地被植物抗寒性的测定  

Identification of Cold Resistance of 8 Ground Cover Plants by Electrical Conductivity Analysis

作　　者：骆建霞[1] 史燕山[1] 张旭[1] 许晓静[1] 

机构地区：[1]天津农学院园艺系,天津300384

出　　处：《天津农学院学报》2005年第3期10-13,共4页Journal of Tianjin Agricultural University

基　　金：天津市高等学校科技发展基金项目"优良观赏地被植物抗逆性机理研究"(20031307)

摘　　要：采用电导法对双色锦带、伞房决明、四翅滨藜、亮叶忍冬、红叶女贞、木旬子、花叶扶芳藤、金叶过路黄共8种植物的抗寒力进行了研究,其中后7种植物为首次引入天津地区。对低温处理后各试材枝条电解质的外渗率及其临界致死低温的分析结果表明:四翅滨藜抗寒性最强,金叶过路黄抗寒性最弱。8种试材抗寒力强弱顺序依次为:四翅滨藜>双色锦带>亮叶忍冬>红叶女贞>花叶扶芳藤>伞房决明>木旬子>金叶过路黄,以上列举的前5种植物在天津地区可自然越冬,其余3种植物则需采取必要的越冬防护措施。The cold resistance of Weigela carnaval , Cassia corymbosa , Atriplex canescens , Lonicena nitida ‘Maigrum ＇, Ligustrum, quihoni carr. fatropurea , Cotoneaster cochleatus , Euonymus fortunei ‘Coloratus ＇ , Lysimachia ‘Auren ＇, of which the last seven species were introduced into Tianjin for the first time, was determined by means of electrical conductivity. According to the rate of permeated electrolytes of materials treated with low temperatures and the critical lethal temperature obtained, Atriplex canescens was defined as the hardiest species and Lysimachia ‘Auren＇ as the most cold sensitive one in the experiment. The order of cold resistance of tested materials was Atriplex canescens 〉 Weigela carnaval 〉 Lonicena nitida ‘Maigrum ＇ 〉 Ligustrum. quihoni carr. fatropurea 〉 Euonymus fortunei ‘Coloratus＇ 〉 Cassia corymbosa 〉 Cotoneaster cochleatus 〉 Lysimachia ‘Aure’. The first five species quoted about can suffer the low temperature appearing in the winter of Tianjin while the rest of three can＇t without any effective protection.

关 键 词：地被植物 抗寒性 电导率 

分 类 号：S602.2[农业科学—园艺学] Q945.78[生物学—植物学]