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Research Article

Phytoextraction of Cu, Zn, and Pb Enhanced by Chelators with Vetiver (Vetiveria zizanioides): Hydroponic and Pot Experiments

Table 6

Heavy metal accumulation and translocation in vetiver with different treatment conditions in pot experiments unit: mg/kg.
Treatment conditionMetal accumulation Whole plant accumulation
UndergroundShoot
RootStemLeaf
Cu 2 4 8 . 7 0 ± 2 8 . 9 4 6 . 5 4 ± 1 . 8 8 5 . 9 2 ± 1 . 6 7 261.16
( 6 . 2 1 ± 1 . 4 8 )*
Cu+EDDS 1 8 1 7 . 6 0 ± 3 1 0 . 2 8 1 4 5 8 . 5 8 ± 6 6 5 . 5 5 3 6 0 . 6 6 ± 1 9 6 . 0 8 3636.84
( 9 3 6 . 7 2 ± 2 7 4 . 4 1 )
Cu+CA 9 2 5 . 6 3 ± 3 3 0 . 1 9 5 6 . 3 3 ± 3 . 0 3 1 4 . 7 9 ± 3 . 1 0 996.75
( 3 5 . 6 4 ± 2 . 2 8 )
Cu+EDTA 2 0 8 0 . 0 0 ± 5 7 . 5 1 9 5 3 . 7 9 ± 2 1 9 . 5 3 8 6 . 3 2 ± 5 . 5 0 3120.11
( 5 2 1 . 4 2 ± 1 0 8 . 7 3 )
Zn 1 7 4 4 8 . 4 9 ± 4 3 5 4 . 8 9 7 7 0 0 . 6 1 ± 2 6 3 0 . 6 9 8 2 0 5 . 8 6 ± 2 4 7 0 . 9 6 33354.96
( 7 9 5 4 . 8 6 ± 2 5 0 4 . 6 0 )
Zn+EDDS 1 6 3 8 7 . 9 6 ± 2 9 3 5 . 1 9 1 2 4 1 1 . 5 5 ± 2 1 1 1 . 8 8 1 2 0 3 6 . 0 3 ± 3 0 8 2 . 9 4 40835.54
( 1 2 2 2 7 . 1 5 ± 2 5 6 8 . 3 9 )
Zn+CA 1 4 4 4 4 . 2 3 ± 3 2 9 9 . 4 5 1 2 4 2 0 . 0 7 ± 3 1 4 7 . 3 0 1 0 8 2 0 . 7 0 ± 1 0 5 5 . 3 9 37685.00
( 1 1 6 0 9 . 2 4 ± 1 2 8 2 . 8 0 )
Zn+EDTA 1 2 8 9 8 . 5 7 ± 9 3 2 . 0 3 9 8 9 1 . 4 3 ± 2 7 3 9 . 0 3 1 2 5 5 2 . 3 8 ± 4 3 6 0 . 1 4 35342.38
( 1 1 2 3 3 . 9 3 ± 3 4 8 0 . 0 2 )
Pb 4 0 6 9 . 2 5 ± 6 8 0 . 8 0 6 7 . 8 2 ± 1 5 . 7 0 6 9 . 4 6 ± 1 9 . 2 3 4206.53
( 6 8 . 5 3 ± 9 . 5 2 )
Pb+EDDS 4 3 4 2 . 9 4 ± 1 0 3 8 . 6 6 2 7 9 . 6 7 ± 1 0 8 . 6 1 1 9 7 . 2 8 ± 9 1 . 0 1 4819.89
( 2 3 8 . 1 5 ± 8 7 . 8 4 )
Pb + CA 4 9 1 3 . 7 7 ± 7 0 9 . 8 9 3 8 8 . 1 0 ± 1 7 9 . 0 3 1 0 3 . 0 3 ± 4 0 . 8 0 5404.90
( 2 4 9 . 0 4 ± 1 1 0 . 4 7 )
Pb+EDTA 4 6 3 2 . 1 7 ± 5 1 2 . 7 1 1 8 7 7 . 6 1 ± 2 8 7 . 5 3 3 3 9 . 2 6 ± 1 7 2 . 0 0 6849.04
( 1 1 2 5 . 9 7 ± 1 9 5 . 3 0 )
*() means the metal concentrations in shoot.