Table 3: Metal concentrations (means where ) of three wheat cultivars grown on sand media amended, without biosolids (Standard) and with biosolids.

Plant tissue TreatmentDuration (weeks)
0–44–12
Chinese SpringTriticum aestivum Yecora RojoChinese SpringTriticum aestivum Yecora Rojo
mg kg−1

Cd
ShootStandard2.53a2.55a2.56a0.56b0.75b1.01a
Biosolids24.6a29.8a24.4a6.06b8.75a8.47a
RootStandard2.63a2.64a2.84a0.75a0.78a0.72a
Biosolids41.8a39.3a26.1b18.0a12.9c15.8b

Cr
ShootStandard1.75a1.73a1.75a1.54a1.15b1.52a
Biosolids2.77a2.70a2.69a1.51a1.56a1.52a
RootStandard1.77a1.76a1.81a1.45a1.44a1.44a
Biosolids34.5b42.7a33.2b12.2a9.11b4.99c

Cu
ShootStandard16.0a15.5a16.0a4.44b4.46b5.07a
Biosolids27.7a27.4a20.0b9.50a7.73b6.41c
RootStandard17.4a17.3a17.7a12.0a12.5a10.3b
Biosolids79.9a77.1a77.5a64.8a59.9b60.9b

Ni
ShootStandard21.1a21.4a21.2a9.82a9.72a9.20a
Biosolids64.9a54.6b54.9b40.5a34.5b34.3b
RootStandard52.5a52.6a53.7a34.4a34.6a35.1a
Biosolids135a158a154a112a120a118a

Pb
ShootStandard2.62a2.41a2.63a1.49b1.41b1.93a
Biosolids12.6a10.2b10.8b7.49a7.13a6.57b
RootStandard2.69a2.72a2.87a1.67b2.03a2.23a
Biosolids14.2a16.2a16.6a9.24a10.9a10.0a

Zn
ShootStandard45.7a43.4a42.9a31.5a28.7a31.3a
Biosolids319a338a271b124a144a125a
RootStandard68.5a60.3b51.0c28.5a28.5a32.7a
Biosolids610a682a633a304a342a286a

The differences of metal concentrations among the growth period were tested by one-way ANOVA and Student-Newman-Keuls test. Within a row and between shoot and root of each growth periods, values followed by a different letter were significantly different at .