镉胁迫下不同地方品种粉葛的镉积累特性及产量差异  

Cadmium Accumulation Characteristics and Yield Differences of Different Local Varieties of Pueraria montana var.thomsonii under Cadmium Stress

作　　者：徐跃真 王艳[2] 郑德波[2] 欧昆鹏[2] 林茜[2] 王学礼[1] XU Yuezhen;WANG Yan;ZHENG Debo;OU Kunpeng;LIN Qian;WANG Xueli(College of Agriculture,Guangxi University,Nanning 530004,China;Institute of Biotechnology,Guangxi Academy of Agricultural Sciences,Nanning 530007,China)

机构地区：[1]广西大学农学院,南宁530004 [2]广西农业科学院生物技术研究所,南宁530007

出　　处：《种子》2024年第9期48-52,85,共6页Seed

基　　金：广西特色作物试验站项目(桂TS201431);广西中药材产业科技先锋队(桂农科盟202311);广西农业科学院基本业务专项(桂农科2021YT091)。

摘　　要：为探究在镉胁迫下不同粉葛品种对镉吸收转运及产量的影响,在镉地质高背景农田土壤中,以粉葛不同品种为对象,采用田间试验,研究7个地方品种粉葛的镉积累特性和产量差异。结果表明,在土壤镉胁迫下,不同品种不同部位镉含量表现为芦头>主藤>叶片>块根皮>块根;芦头和块根皮的品种间差异总体大于其他部位,不同品种的块根镉含量最小,为0.24 mg/kg,均超过国家块根类蔬菜规定的限量值(0.10 mg/kg);合水粉葛芦头和主藤较易于富集镉,细叶粉葛块根皮对镉的阻隔积蓄能力最强,桂粉葛1号和细叶粉葛块根积累镉的含量相对较低且种植经济效益也优于其他品种。In order to investigate the effects of different Pueraria montana var.thomsonii varieties on cadmium absorption,transport and yield under cadmium stress,a field experiment was conducted to study the cadmium accumulation characteristics and yield differences of 7 local Pueraria montana var.thomsonii varieties in farmland soil with high cadmium geological background.The results showed that under cadmium stress,the cadmium content in different parts of different varieties was as follows,from big to small:reed head,main vine,leaves,root bark,root.The difference between varieties of reed head and root bark was greater than other parts.The cadmium content of root tuber of different varieties was the smallest of 0.24 mg/kg,which exceeded the national limit value of 0.10 mg/kg for root vegetables.The Pueraria montana var.thomsonii Heshui reed head and main vine were more likely to accumulate cadmium,and the root bark of Xiye Pueraria montana var.thomsonii had the strongest barrier and accumulation capacity of cadmium,and the content of cadmium accumulated in the root of Pueraria montana var.thomsonii Guifenge No.1 and the root of Xiye Pueraria montana var.thomsonii was relatively low,and the planting economic benefit was better than other varieties.

关 键 词：粉葛 镉 富集 转运 产量 

分 类 号：S567.19[农业科学—中草药栽培]