盐胁迫对刺槐混栽苗光合特性的影响  

Effects on Photosynthetic characteristics of pure and mixed seedlings of black locust under Salt Stress

作　　者：李涛 吴丽云 李延孝 曹帮华[3] 霍瑞艳 

机构地区：[1]山东省临沂市林业局,山东临沂276000 [2]山东省临沂市水利局 [3]山东农业大学林学院

出　　处：《山东林业科技》2011年第6期17-20,共4页Journal of Shandong Forestry Science and Technology

基　　金：国家自然科学基金项目(黄河三角洲滨海盐碱地刺槐林植被恢复与提高生产力机理研究30950016)资助

摘　　要：以刺槐、榆树、臭椿、绒毛白蜡、杨树为试材,利用不同浓度盐溶液模拟盐胁迫条件,研究了盐胁迫对刺槐混栽苗光合特性的影响。结果表明:低盐胁迫下刺槐混栽苗的Pn、Ci、Cond同步下降,且相关性较高;而随着胁迫的增强,三者又有所增高,在高盐胁迫下(200mmol/L)又开始下降,但盐胁迫对不同混栽苗光合作用的伤害作用不同。Effects on Photosynthetic characteristics of pure and mixed seedlings of black locust were compared under Salt Stress in this paper.Results showed that at the low salt stress,the Pn and Ci and Cond of pure and mixed seedlings of black locust were reduced,the reduce intensity were more and more serious as the stress condition became heavier,and at the high salt stress,they were all begin to decrease,but the damages in different mixed seedlings of black locust under salt stress were different.

关 键 词：盐胁迫 刺槐 混栽苗 光合特性 

分 类 号：S792.27[农业科学—林木遗传育种]