摘要
[目的]研究EM原露对铅胁迫下黑麦草种子萌发、幼苗生长及重金属铅吸收的影响。[方法]以黑麦草种子为材料,采用水培方法研究喷施不同浓度EM原露处理(0、150倍、450倍)对铅胁迫下黑麦草种子萌发、幼苗生长及重金属铅吸收的影响。[结果]EM原露处理与对照相比,能促进黑麦草种子萌发和幼苗生长,样品鲜重明显提高。其中喷施150倍EM原露效果最佳,黑麦草发芽势与种子发芽率相对增长率均达到30.0%,芽长、根长相对增长率分别达31.76%、14.77%,同时培养液中重金属铅含量明显降低34.81%。[结论]该研究结果可为今后草坪草修复重金属污染的治理提供理论依据。
[Objective]In order to study the influence of EM on the seed germination,seeding growth and lead absorption on ryegrass under lead stress.[Method]Taking ryegrass as research object,the influence of different concentrations of EM(0,150 times,450 times)on the seed germination,seeding growth and lead absorption on ryegrass under lead stress was studied by using hydroponics culture method.[Result]Seed germination,seeding growth and fresh weight increased very significantly with the application of EM concentration compared with control group.Among them,the effect of applying 150 times EM was the best,the relative growth rate of germinative potential and germination rate achieved respectively 30.0%,the relative growth rate of germinal length and root length reached 31.76%,14.77%.At the same time,the content of lead in the culture solution was significantly reduced by 34.81%.[Conclusion]The research can provide theoretical basis for the rehabilitation of heavy metals by turf grass in the future.
作者
周红艳
黄晓梅
朱瑛
江国鸿
ZHOU Hong-yan;HUANG Xiao-mei;ZHU Ying(Fujian Agriculture Vocation Technical College,Fuzhou,Fujian 350119)
出处
《安徽农业科学》
CAS
2019年第23期79-81,共3页
Journal of Anhui Agricultural Sciences
基金
福建农业职业技术学院院级科研项目(2019JS012)
福建省教育厅中青年教师科研项目(JA15757)
