Table 2 P accumulation of P. hydropiper grown under 3 mM P supplied as IHP for different growth periods (mg plant−1).

From: P accumulation and physiological responses to different high P regimes in Polygonum hydropiper for understanding a P-phytoremediation strategy

Growth period (weeks)

Root

Stem

Leaf

ME

NME

ME

NME

ME

NME

3

1.06 ± 0.04b

1.36 ± 0.16c

5.34 ± 0.27d

4.48 ± 0.60d

4.61 ± 0.21d

3.48 ± 0.30d

5

2.18 ± 0.03a*

1.62 ± 0.07bc

15.40 ± 1.80c

15.01 ± 1.32c

9.28 ± 0.30c

7.87 ± 0.08c

7

2.31 ± 0.28a

2.02 ± 0.07ab

31.07 ± 1.59b*

22.79 ± 1.35b

13.42 ± 1.35b*

9.87 ± 0.04b

9

2.35 ± 0.33a

2.28 ± 0.15a

40.94 ± 2.35a*

33.32 ± 0.32a

15.49 ± 0.57a*

11.96 ± 0.03a

  1. Note: ME: mining ecotype, NME: non-mining ecotype. The data mean the average ± standard error of 3 replicates. Data with different small letters indicate statistically different among growth periods (p < 0.05). * represents statistically different between ecotypes (p < 0.05).
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