文献类型：期刊文献

中文题名：4种地锦属植物半致死低温及抗寒生理指标研究

英文题名：Study on Semi-lethal Low Temperatures and Physiological Index for Cold Resistance of Four Parthenocissus Species

作者：杨学军[1,2] 孙振元[1] 韩蕾[1] 巨关升[1] 彭镇华[1]

第一作者：杨学军

机构：[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091;[2]北京草业与环境研究发展中心,北京100097

年份：2010

期号：1

起止页码：147-150

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家科技支撑计划“优质抗逆专用地锦新品种选育”(2006BAD01A19-5)

语种：中文

中文关键词：地锦属;半致死低温;水分饱和亏;可溶性糖;可溶性蛋白;丙二醛;脯氨酸

外文关键词：Parthenocissus;semi-lethal low temperature;water saturation deficit; soluble sugar; soluble protein; MDA ; proline

分类号：S731.2

摘要：Treated by freezing,1-year-old dormant branches of four Parthenocissus species were used as test materials to determine the electro-conductivities.According to Logistic equation fitting,the semi-lethal low temperatures were calculated.The result showed that the semi-lethal low temperatures and freezing tolerance of the examined species were ranked as: Parthenocissus quinquefolia(-16.63 ℃),P.tricuspidata(-10.78 ℃),P.laetecirens(-10.29 ℃),and P.henryana(-7.72 ℃).By comparing several physiological indexes including water saturation deficit,soluble sugar,soluble protein,MDA,and proline contents,it was found that after cold stressing for a whole winter the soluble sugar and proline contents were well correlated to semi-lethal low temperatures.So both of them could be used as the physiological indexes for cold tolerance identification and selection of cold-resistant variety.
Treated by freezing, 1-year-old dormant branches of four Parthenocissus species were used as test materials to determine the electro-conductivities. According to Logistic equation fitting, the semi-lethal low temperatures were calculated. The result showed that the semi-lethal low temperatures and freezing tolerance of the examined species were ranked as ： Parthenocissus quinquefolia （ - 16.63 ℃ ）, P. tricuspidata （ - 10.78 ℃ ）, P. laetecirens（ -10.29 ℃ ）, and P. henryana（ -7.72 ℃ ）. By comparing several physiological indexes including water saturation deficit, soluble sugar, soluble protein, MDA, and proline contents, it was found that after cold stressing for a whole winter the soluble sugar and proline contents were well correlated to semi-lethal low temperatures. So both of them could be used as the physiological indexes for cold tolerance identification and selection of cold-resistant variety.