| 我国东北寒冷地区李种质资源抗寒力测定 |
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| 引用本文： | 林存学,杨晓华,刘海荣,刘滨,李锋,于泽源.我国东北寒冷地区李种质资源抗寒力测定[J].东北农业大学学报,2017,48(4). |
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| 作者姓名： | 林存学 杨晓华 刘海荣 刘滨 李锋 于泽源 |
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| 作者单位： | 1. 黑龙江省农业科学院牡丹江分院,黑龙江牡丹江,157041;2. 吉林省农业科学院果树研究所,吉林公主岭,136100;3. 东北农业大学园艺园林学院,哈尔滨,150030 |
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| 基金项目： | 国家科技支撑计划，黑龙江省果树工程技术研究中心 |
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| 摘 要： | 应用电导率法测定34个李品种枝条在不同低温处理下相对电导率,拟合Logistic方程,计算各品种半致死温度。结果表明,随处理温度降低,枝条组织相对电导率呈"S"型曲线变化,供试李品种半致死温度范围为-26.19~-36.54℃,俄罗斯引进品种总体抗寒性较好,其次为地方资源品种,人工培育个别品种抗寒力相对较弱。抗寒力较强品种:龙园蜜李、俄2、俄13、秋甜李、巴彦大红袍、绥李3号;抗寒力较弱品种:矮甜李、吉林6号、大淡果、长李15、牡红甜李。
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| 关 键 词： | 李 抗寒力 相对电导率 Logistic方程 半致死温度 |
Measurement of cold tolerance in plum varielies of cold region in northeast China conductivity method |
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| LIN Cunxue,YANG Xiaohua,LIU Hairong,LIU Bin,LI Feng,YU Zeyuan.Measurement of cold tolerance in plum varielies of cold region in northeast China conductivity method[J].Journal of Northeast Agricultural University,2017,48(4). |
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| Authors: | LIN Cunxue YANG Xiaohua LIU Hairong LIU Bin LI Feng YU Zeyuan |
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| Abstract: | Determined the electrical conductivity of 34 plum varieties in different branches relative conductivity under low temperature,and fitted Logistic equation to calculate the lethal temperature of each species.The results showed that the relative electrical conductivities of branches of 34 plum cultivars increased as a S-curves with the decrease of temperature,the semi-lethal temperature was-26.19 ℃C to-36.54 ℃C,cold resistance of Russia introduced were the best,followed by local resource varieties,cold resistance of artificial breeding varieties were the poorest.The front of cold hardiness were Longyuanmili,E2,E13,Qiutianli,Bayandahongpao,Suili3.Aitianli,Jilin6,Dadanguo,Changli15,Muhongtianli were in the back of cold hardiness. |
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| Keywords: | plum cold tolerance relative electric conductivity Logistic equation semi-lethal temperature |
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