中国蔬菜Issue(7)：58-63,6.
腐植酸对NaCl胁迫下西瓜幼苗的缓解效应
Alleviation Effect of Humic Substances on Watermelon Seedlings under NaCl Stress
摘要
Abstract
Taking ‘Jingxin No.1’ watermelon as experimental material,this paper investigated the effects of different humic substances(HS) concentration (0,0.1,0.3,0.6,1.0 g·L-1) in Hoagland on photosynthesis, chlorophyll content,biomass,electrolyte leakage percentage,antioxidant enzyme,proline and Na+,K+ contents of watermelon seedling under salt stress(100 mmol·L-1 NaCl).The results showed that adding HS could improve the plant growth by different degrees under salt stress,especially the 0.3 g·L-1 treatment had the best alleviation effect,in which the chlorophyll contents,photosynthesis,Fv/Fm and ΦPSⅡ were significantly increased,and the distribution of Na+ and K+ was improved. At the same time,the activities of SOD and CAT were enhanced,and the electrolyte leakage percentage and MDA accumulation were reduced. Thus,watermelon plant growth was promoted.关键词
西瓜/盐胁迫/腐植酸/缓解效应Key words
Watermelon/NaCl stress/Humic substances/Alleviation effect引用本文复制引用
郭云平,巩彪,王秀峰,魏珉,杨凤娟,李岩,史庆华..腐植酸对NaCl胁迫下西瓜幼苗的缓解效应[J].中国蔬菜,2016,(7):58-63,6.基金项目
国家“十二五”科技支撑计划项目（2014BAD05B03），山东省农业重大应用技术创新课题（2014），山东省高等学校科技计划项目（J13LF05），山东省现代农业产业技术体系项目 （）
