摘要
用土培试验研究了青菜的两个品种火青菜(Cu耐性品种)和四月慢(Cu敏感性品种)在重金属CuZn胁迫下的响应差异。结果表明不论是单Cu、单Zn处理还是CuZn复合处理,两个青菜品种的生物量、含水量和重金属含量均因所处理重金属浓度和品种的不同而表现出差异;对地上部含糖量的分析发现,Cu耐性品种火青菜积累可溶性糖的能力显著大于Cu敏感性品种四月慢积累可溶性糖的能力。CuZn复合处理较单一处理均增加两种青菜根中CuZn的积累,但对于地上部来说,CuZn处理浓度不同,青菜品种不同,其影响存在差异。
Responses of two cultivars of Brassica Chinensis to soil heavy metals Cu and Zn were investigated. The results indicate that when the soil was treated with Cu, Zn or both, the difference between the two cultivars in biomass, water content and heavy metal concentrations varied with concentrations of Cu and Zn. The sugar content in shoots of Huoqingcai was higher than that of Siyueman. When Cu and Zn coexisted, the accumulation of Cu and Zn in the roots of both cultivars of Brassica Chinensis increased in comparison with that in the treatment of Cu or Zn alone, but varied in the shoots between cultivars and between treatments.
出处
《土壤》
CAS
CSCD
北大核心
2005年第4期400-404,共5页
Soils
基金
国家重点基础发展规划项目(2002CB410808)资助。
关键词
铜
锌
生物量
青菜
糖
Copper, Zinc, Biomass, Brassica Chinensis, Sugar
