亚热带植物科学Issue(4)：276-280,5.DOI:10.3969/j.issn.1009-7791.2014.04.002
五种重金属胁迫对白三叶和红三叶种子萌发及幼苗生长的影响
Effects of Five Kinds of Heavy Metal Stress on Seed Germination and Seedling Growth ofTrifolium repens andT. pratense
摘要
Abstract
Effects of five kinds of heavy metal stress on seed germination and seedling growth of Trifolium repens andT. pratensewere studied by germination test, aimed to provide a reference for the study of the applications ofTrifolium in heavy metal contaminated soil. The results showed that Haifa (a cultivar ofT. repens)andT. pratensehad better tolerance to Cd2+ and Mn2+, than to Pb2+, Cu2+ and Zn2+.They had over 80% germination rate under the III grade standard concentration of Cd2+or under 800 mg·L-1Mn2+, and the seedlings still maintained good vitality.High concentration of heavy metal ions stress had significant inhibition on the growth of embryo and hypocotyl, andT. pratensehad better germination rate than Haifa. These two species ofTrifoliumcould be applied for Cd-Mn contaminated soil restoration.关键词
三叶草/重金属离子/胁迫/种子萌发Key words
Trifolium/heavy metal ions/stress/seed germination分类
农业科技引用本文复制引用
宋凤鸣,刘建华,吴彩琼,雷江丽,徐义炎..五种重金属胁迫对白三叶和红三叶种子萌发及幼苗生长的影响[J].亚热带植物科学,2014,(4):276-280,5.基金项目
深圳市生物、互联网、新能源、新材料产业发展专项资金项目(SW201110069) （SW201110069）
