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失水对植物生理特性和电特性的影响
引用本文:郭文川,伍 凌,魏永胜.失水对植物生理特性和电特性的影响[J].西北农林科技大学学报(社会科学版),2007,35(4):185-188.
作者姓名:郭文川  伍 凌  魏永胜
作者单位:1. 西北农林科技大学,机械与电子工程学院,陕西,杨凌,712100
2. 西北农林科技大学,生命科学学院,陕西,杨凌,712100
基金项目:西北农林科技大学校科研和教改项目
摘    要:为了了解植物电特性与生理特性间的关系,特以吊兰、玉米和小麦等植物为对象,研究了失水对离体和活体植物叶片的生理特性参数(组织含水量和水势)及电特性参数(电容和电阻值)的影响。结果表明,失水使叶片组织含水量、水势降低,使电容减小、电阻增大,且电容和电阻的变化较组织含水量和水势的变化明显。表明植物叶片电特性能够反映植物的水分生理特性,因此,利用植物电特性快速获取植物旱情信息是可行的。

关 键 词:植物电特性  生理特性  旱情检测
文章编号:1671-9387(2007)04-0185-04
收稿时间:3/6/2006 12:00:00 AM
修稿时间:2006-03-06

Influence of water loss on physiological and electrical properties of plants
GUO Wen-chuan,WU Ling,WEI Yong-sheng.Influence of water loss on physiological and electrical properties of plants[J].Journal of Northwest Sci-Tech Univ of Agr and,2007,35(4):185-188.
Authors:GUO Wen-chuan  WU Ling  WEI Yong-sheng
Institution:(College of Mechanical and Electronic Engineering; College of Life Sciences,Northwest A & F University ,Yangling ,Shaanxi 712100,China)
Abstract:In order to understand the relationship between electrical and physiological properties of plants,the paper studied influence of water loss on physiological parameters e. g. water content and water potential,as well as electrical parameters e. g. capacitance and resistance of picked and living leaves of bracketplant chlorophytum,corn and wheat. Results show that water loss makes water content and potential of leaves decrease ,but makes capacitance decrease and resistance increase. Moreover,changes of capacitance and resistance are more obvious than that of water content and potential. It presents that electrical properties can reflect physiological properties of water in plants. Therefore, it is feasible to use electrical properties of plants to get drought information of plants quickly.
Keywords:electrical properties of plants  physiological properties  drought detection
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