Effects of Pb on Root＇s Growth and Activity of 14 Native Herbaceous Plants
Abstract：A greenhouse pot experiment was conducted to study the effects of Pb on root＇s growth and activity of 14 native herbaceous plants in different Pb treatment（0,500,1 000,1 500 mg/kg）.The results showed that Chenopodium album,Psathyrostachys juncea,Amaranthus tricolor of ＇red leaf＇ and Medicago sativa are highly tolerant to Pb.Root length,root＇s biomass and activity are all higher than control.Aster tataricus,Amaranthus retroflexus and Sorghum bicolor×S are sensitive to Pb.Root length,root＇s biomass and activity are significantly lower than control in 1 500 mg/kg Pb treatment.Tolerance to Pb of other 7 plants are between the two kinds of plants.The result will provide theoretical basis of ecological restoration in Pb-polluted soil.
Keywords：nativeherbaceousPbroot
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 75-77 )