不同黄、红麻对土壤重金属的积累和分布特性研究

通过研究不同黄、红麻品种对土壤重金属吸收和富集的特性,了解其生长耐受性及植株各器官对重金属Zn、Cd、As、Pb的积累和分布特性。结果表明:随着植株的生长,黄、红麻各器官对Zn的积累分布较均匀;As的积累呈不断上升趋势,根>叶(籽粒)>茎秆;Cd的积累呈不断下降趋势,根>叶(籽粒)>茎秆;Pb的积累有增有降,根>茎秆>叶(籽粒);在土壤重金属胁迫下耐受性较好的黄、红麻品种有红麻09-1、09-3、09-5和黄麻09-2、09-3、09-5。

Study on the absorption and accumulation characteristics of heavy metals by different hemp and jute

Different hemp and jute varieties of soil heavy metal uptake and accumulation characteristics were studied to understand its growth tolerance and various organs of the plant accumulation of Zn,Cd,As,Pb,heavy metals and distribution characteristics.The results showed that with the growth of the plant,jute and Kenaf organs on the accumulation of Zn distribution was uniform;the accumulation of As showed a rising trend,root >leaf >stem(grain);the accumulation of Cd decreased continuously,root>leaf>stem(grain);Pb accumulation had add or fall,root>stem >leaf(grain);in the soil under heavy metal stress,kenaf varieties of tolerance better were 09-1,09-3,09-5 kenaf and jute 09-2,09-3,09-5.