摘要
采用种子萌发实验方法 ,研究了不同浓度铜、铁、铅单一及复合污染对铜草幼苗生长的影响。结果表明 ,铜铁铅3种金属对铜草种子萌发率的影响不同 ,铜草种子对铜的耐性最高。铜草幼苗对铜和铁的耐性较高 ,能较好地适应在受铜铁污染的土壤中生长。在铜铁浓度一定的情况下 。
Seeds of Elsholtzia splendens Nakai ex F.Maekawa are incubated in Hoagland media containing copper, iron or /and lead, in order to evaluate toxicity of several metals on plants. It has been discovered that the three ions exhibit capacity of decreasing the germinating rates differently. The seed showed a greater tolerance on copper. In addition, the seedling of the plant could grow better in those containing either copper or iron media than that containing lead. When the contents of copper and iron were fixed, an addition of lead could apparently inhibit the growth of the seedlings.
出处
《农业环境保护》
CSCD
北大核心
2001年第2期71-73,77,共4页
Agro-Environmental Protection
基金
国家自然科学基金资助项目 !(206980233)
湖北省自然科学基金资助
关键词
海州香薷
幼苗
毒性
土壤污染
重金属污染
铜
铁
铅
Elsholtzia splendens Nakai ex F.Maekawa
copper/iron/lead
seedling
toxicity
