外源脱落酸对大庆地区盐胁迫下甜瓜幼苗生理指标的影响  

Effects of exogenous abscisic on physiological indexes of melon seedling under salt stress in Daqing

作　　者：李响[1] 王兴柱[2] 聂鑫[1] 聂海洋[3] 付兴隆 张萌[5] 杨磊 靳亚忠[1] LI Xiang WANG Xingzhu NIE Xin NIE Haiyang FU Xinglong ZHANG Meng YANG Lei JIN Yazhong(College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China Daqing Branches of Heilongjiang Academy of Agrichltural Sciences, Daqing 163316, Heilongjiang, China Daqing Yinlang Ranch, Daqing 163411, Heilongjiang, China Youyi Farm, Shuangyashan 155800, Heilongjiang, China Flower Company of the Mining Services Group Landscaping Company, Daqing Oilfield Company Limited, Daqing 163453, Heilongjiang, China The Seventh Team of Production Preparations for the Br/gade, Petrochina Daqing Oilfield No, 4 Oil Production Plant, Daqing 163511, Heilongjiang, China)

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319 [2]黑龙江省农业科学院大庆分院,黑龙江大庆163316 [3]大庆市银浪牧场,黑龙江大庆163411 [4]友谊农场,黑龙江双鸭山155800 [5]大庆油田有限责任公司矿区服务事业部园林绿化公司花卉公司,黑龙江大庆163453 [6]大庆油田第四采油厂生产准备大队准备七队,黑龙江大庆163511

出　　处：《中国瓜菜》2017年第3期29-31,39,共4页China Cucurbits And Vegetables

摘　　要：通过模拟大庆地区土壤盐胁迫环境,研究了不同浓度脱落酸对该环境下甜瓜幼苗生理指标的影响。结果表明,盐胁迫下甜瓜幼苗叶绿素a、b含量以及a/b值、脯氨酸含量、可溶性糖含量、根系活力降低,丙二醛含量升高;盐胁迫下,加入外源脱落酸可调节甜瓜幼苗的生长,1×10^(-7)mol·L^(-1)和1×10^(-6)mol·L^(-1)脱落酸处理能改善甜瓜各种生理指标,而高浓度外源脱落酸则增加了胁迫伤害程度。说明一定浓度范围的外源脱落酸能提高甜瓜耐盐性,缓解了大庆土壤盐胁迫环境对甜瓜幼苗的伤害。By simulating salt stress of soil environment in Daqing region, the effects of different concentrations of abscisic acid on physiological indexes of melon seedlings under salt stress was studied. The results showed that the content of chlorophyll a, chlorophyll b, proline, soluble sugar and root vitality of melon seedlings decreased, while the content of malondialdehyde increased. The physiological properties of melon could be regulated by exogenous abscisic acid. The abscisic acid concentration of 1× 10^-7 mol· L-1 and 1×10^-6 mol· L-1 could improve the physiological indexes of melon seedlings, while higher concentration could inhibit. In conclution, a certain concentration range of abscisic acid can improve the salt resistance of melon and reduce the harm of salt stress on seedlings in Daqing region.

关 键 词：甜瓜 幼苗 脱落酸 盐胁迫 大庆地区 

分 类 号：S652[农业科学—果树学]