详细信息
干旱胁迫对景天属植物生理生化特性的影响 被引量:32
Influences of Drought Stress on the Physical Characteristics of Sedums Species
文献类型:期刊文献
中文题名:干旱胁迫对景天属植物生理生化特性的影响
英文题名:Influences of Drought Stress on the Physical Characteristics of Sedums Species
作者:周伟伟[1] 王雁[1] 杜静[2]
第一作者:周伟伟
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]北京市顺义区林业局,北京101300
年份:2009
卷号:22
期号:6
起止页码:829-834
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:国家林业局948项目(2005-4-55)部分内容
语种:中文
中文关键词:干旱胁迫;景天属植物;生理生化特性
外文关键词:drought stress; sedums; physiological indexes
分类号:S681.9
摘要:通过盆栽干旱胁迫,研究了不同程度干旱胁迫对7种景天属植物生理特性的影响。结果表明:干旱胁迫下7种景天属植物细胞膜脂氧化产物丙二醛含量及叶片相对电导率均有不同程度的升高,其中以反曲景天上升的幅度较大;随干旱胁迫时间的延长,超氧化物歧化酶(SOD)含量呈上升趋势或者是先增加后降低的基本势态。7种景天属植物抗旱性由强至弱的顺序为:胭脂红景天(勘察加费菜(佛甲草(反曲景天(垂盆草(八宝景天(六棱景天。
Through pot-cultivating seven Sedums species under drought stress, their drought tolerance to learned indexes, including the relative water content of leaves, the penetration of membrane and so on, were comprehensively evaluated and compared. The results showed, under the stress of continuous drought, the penetration of membranes and MDA had a increasing trend, superoxide dismutase activities increased with light drought stress and declined with severe drought stress. According to multiple analysis, the drought resistance of seven species were in the order of Sedum spurium ' Coccineum' 〉 S. kamtschaticum Fisch 〉 S. linear Thunb 〉 S. reflexum Tripmadam 〉 S. sarmentosum Bunge 〉 S. spectabile Boreau 〉 S. sexangulare L.
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