【作者】 胡晓立； 李彦慧； 陈东亮； 冯晨静； 杨建民；

【Author】 HU Xiao-li~1 LI Yan-hui~1 CHEN Dong-liang~2 FENG Chen-jing~1 YANG Jian-min~1 (1 College of Landscape Architecture and Tourism,Agriculture University of Hebei,Baoding 071000; 2 The Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang 311400)

【机构】 河北农业大学园林与旅游学院； 中国林科院亚热带林业研究所；

【摘要】 以盆栽4年生紫叶李、紫叶矮樱、黑杆樱李为试材,设置土壤的NaCl含量为0.1%、0.2%、0.3%、0.4%,研究NaCl胁迫对3种李属彩叶植物盐害指数、抗氧化酶活性、渗透调节物质的影响。结果表明:随着土壤中NaCl含量的增高,盐害指数增加;细胞膜透性增大,超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性变化趋势一致,先上升后下降;脯氨酸含量呈下降趋势。通过观测并计算,紫叶李、紫叶矮樱、黑杆樱李处理30d后的盐害率依次为:68.98%、87.04%、75.57%;结合生理指标进行分析得出,3种李属彩叶植物的抗盐性由强到弱依次为:紫叶李、黑杆樱李、紫叶矮樱。更多还原

【Abstract】 4 - years - old colored - leaf species in Prunus treated by NaCl were studied to explain the resistance of colored-leaf species to salt.The soil salt contents were 0.1%,0.2%,0.3%and 0.4%respectively.Salt injury index,antioxidant enzyme activity,osmotic adjustment substance contents were researched.The results were as follows:with the increased soil NaCl content,salt injury index increased;membrane lipid peroxidation;SOD,POD,CAT increased firstly and then decreased with the increased soil NaCl content;Proline decreased.According to the analysis of salt injury index and Physiological - biochemical Characteristic,the resistance of 3 colored-leaf species to NaCl ranked from P.cerasifera var.atropurpurea, P.wrasifers ’Nigra’ to P.×cistenena’ Pissardii’.更多还原