[1]康富军,李金鹏,陈帅,等.长白山五种特色树种的耐寒力测定[J].北方园艺,2012,36(01):99-101.
　KANG Fu-jun,LI Jin-peng,CHEN Shuai,et al.Determination of Cold Tolerance of Five Characteristics Tree Species of Changbai Mountain[J].Northern Horticulture,2012,36(01):99-101.

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长白山五种特色树种的耐寒力测定

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第36卷期数: 2012年01期页码: 99-101 栏目: 出版日期: 2012-01-16

Title:: Determination of Cold Tolerance of Five Characteristics Tree Species of Changbai Mountain

文章编号:: 1001-0009（2012）01-0099-03

作者:: 康富军¹; 李金鹏²; 陈帅²; 董然²; 1.长春市绿化管理处，吉林长春 130062；
2.吉林农业大学园艺学院，吉林长春 130118

Author(s):: KANG Fu-jun¹; LI Jin-peng²; CHEN Shuai²; DONG Ran²; 1.Green Management Office of Changchun City,Changchun,Jilin 130062;
2.College of Horticulture,Jilin Agricultural University, Changchun,Jilin 130118

关键词:: 耐寒性; 电解质外渗率; 半致死温度

Keywords:: cold tolerance; Relative Electric Conductivi(REC); semi-lethal temperature

分类号:: S 688

文献标志码:: A

摘要:: 以水冬瓜赤杨、暴马丁香、山桃稠李、花楸、黄檗1 a生离体枝条为试验材料，经过7个不同低温处理以后，测定其电导率，并用Logistic方程拟合求拐点值来估计其半致死温度（LT₅₀.），探讨其耐寒性。结果表明：水冬瓜赤杨、暴马丁香、山桃稠李、花楸、黄檗这5种树种离体枝条的电解质外渗率均随处理温度的降低而呈横“S”形上升趋势，但上升的幅度有差异，其中，山桃稠李上升幅度最大，黄檗上升幅度最小，其离体枝条的LT₅₀.分别为：-31.53、-29.56、-25.76、-27.85、-33.12℃；从电解质外渗率和LT₅₀.数值分析，其耐寒力大小依次为：黄檗>水冬瓜赤杨>.暴马丁香>花楸>山桃稠李。

Abstract:: Taking one aged vitro shoots of Aluns cremastogyne Burkill. Syringa retiulata var. mandshurica,Prunus maackii,Sorbus pohuashanensis (Hance)Hedl.,Phellodendron amurense Rupr as the materials, their cold tolerance under different low temperature by detemining therelative electric conductivity in vitro shoots of trees were studied.The semilethal temeperature of the above shoots were gotten from Logistic equation.The results showed that the relative electric conductivity increased as a S-curves with the decreased of temperature. There were differences among the different spices, there was a sharp increasen Prunnus maackii and increase of REC on Phellodendron amurense Rupr. According to these S-shapedcurves and the Logistic equation, it could be calculated the semi-lethal temperature (LT₅₀.)of Aluns cremastogyne Burkill.,Syringa retiulata var. mandshurica,Prunus maackii.,Sorbus pohuashanensis (Hance)Hedl. and Phellodendron amurense Rupr.whice was -31.53, -29.56, -25.76, -27.85 and -33.12℃ respectively. Among the five species,the cold tolerance of Phellodendron amurense Rupr.stick was the strongest,followed by Aluns cremastogyne Burkill.,Syringa retiulata var. mandshurica,Sorbus pohuashanensis (Hance)Hedl.and Prunus maackii.

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备注/Memo

第一作者简介：康富军(1975-)，男，本科，高级工程师，现主要从事园林植物应用及养护管理研究工作。

责任作者：董然（1966-)，女，博士，教授，现主要从事长白山野生植物的引种驯化等科研工作。

基金项目：吉林省科学技术厅资助项目(20100259) 。

收稿日期：2011-10-08

更新日期/Last Update: 2014-08-23