摘要
为探明自然轻度镉(Cd)、汞(Hg)复合污染对不同品种小白菜生长及重金属吸收的影响,采用盆栽和田间试验,测定小白菜可食部的生物量、维生素C含量、可溶性蛋白含量和Cd、Hg含量。结果表明,所测指标在21个品种间均存在显著差异,Cd含量为0.185~1.25 mg/(kg·DW),Hg含量为8.56~238µg/(kg·DW)。在盆栽和田间条件下,2个品种Cd富集系数小于1,而所有品种Hg富集系数均小于1。相关性分析显示,可食部生物量、可溶性蛋白含量、Cd含量以及Hg含量之间均无显著相关关系。供试21个品种在该轻度复合污染农田种植不存在安全风险,其中‘奶油小白菜’是安全性最高的品种。
To study the effects of natural mild combined pollution of cadmium(Cd)and mercury(Hg)on the growth and heavy metal absorption of different cultivars of pakchoi,pot and field experiments were conducted to determine the biomass,vitamin C concentration,soluble protein concentration,Cd and Hg concentration of the edible part.It was found that all the measured indicators of 21 cultivars were significantly different.The Cd concentration was 0.185-1.25 mg/(kg·DW),and the Hg concentration was 8.56-238μg/(kg·DW).And under both pot and field conditions,two of the varieties had a Cd bioaccumulation factor(BCF)<1,while all varieties had a Hg BCF<1.Correlation analysis showed that there was no significant co-relationship among edible biomass,soluble protein concentration,Cd concentration,and Hg concentration.The results indicated that there was no healthy risk for planting the 21 tested cultivars in the lightly polluted farmland,and‘Naiyouxiaobaicai’is the most safety variety.
作者
俞朝
王芸
马璐瑶
朱姚镓
詹丽钏
沈泓
胡帅栋
胡智鹏
吴英杰
冯英
YU Chao;WANG Yun;MA Luyao;ZHU Yaojia;ZHAN Lichuan;SHEN Hong;HU Shuaidong;HU Zhipeng;WU Yingjie;FENG Ying(Agricultural and Rural Bureau of Shengzhou,Shaoxing,Zhejiang 310024;Planting Technology Extension Center of Dongyang,Jinhua,Zhejiang 322103;Key Laboratory of Environment Remediation and Ecological Health,Ministry of Education/College of Environmental Resource Sciences,Zhejiang University,Hangzhou 310058)
出处
《中国农学通报》
2024年第16期124-130,共7页
Chinese Agricultural Science Bulletin
基金
浙江省重点研发尖兵计划项目“浙西南地区‘非粮化’‘非农化’整治中粮油作物高效复合种植技术研发与集成示范”(2023C02002)
山东省自然科学基金项目“内生菌对蔬菜作物与东南景天间作效应影响及机理研究”(ZR2023QC308)。
关键词
农田
重金属
蔬菜
低积累品种
安全利用
farmland
heavy metals
vegetable
low accumulation varieties
safe utilization
