EDTA对油菜和小麦富集镉 铅效应的影响

• 作 者: 王学锋 崔倩 师东阳 冯颖俊 崔英
• 机 构: 河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,河南师范大学化学与环
• 出 处: 安徽农业科学
• 发表日期: 2006年16期
• 关键词: Pb Cd 油菜 小麦 EDTA 植物修复

通过盆栽试验,研究了施加EDTA对甘蓝型油菜(秦油2号)、芥菜型油菜(溧阳苦菜)以及小麦(新麦12)富集Pb、Cd效应的影响。结果表明,施加EDTA能明显增加交换态Pb的含量,交换态Cd的含量也有所提高,加入2.5mmol/LEDTA时油菜地上部Pb含量和Pb积累总量达到最大,加入5.0mmol/kgEDTA时油菜地上部Cd含量和Cd积累总量达到最大;而小麦地上部Pb、Cd含量和Pb、Cd积累总量都在加入5.0mmol/kgEDTA时达到最大。

Pot experiments were conducted to study the effects of EDTA on Pb and Cd accumulation in Brassica napus (Qinyou No.2), Brassica juncea (Liyang spp.) And wheat (Xinmai12). The results showed that the content of exchangeable Pb was significantly increased with the addition of EDTA, and the content of exchangeable Cd was also increased. The content of Pb and Pb in the shoots reached the maximum when 2.5 mmol / L EDTA was added. When 5.0 mmol / kg EDTA was added, Cd content and total Cd accumulation reached the maximum; while the above-ground Pb, Cd content and Pb, Cd accumulation reached the maximum when 5.0 mmol / kg EDTA was added.