Skip to main content
. 2021 Oct 18;12:748523. doi: 10.3389/fpls.2021.748523

Table 4.

Effects of Se fertilization on Pb, As, Hg, and Cr concentrations in grains in the 2019–2020 season.

Elements Treatments BGW-1 BGW-2 WGW-2
Pb (mg·kg−1) T0 0.04 ± 0.01Aa 0.03 ± 0.01Aa 0.03 ± 0.01Aa
T1 0.05 ± 0.01Aa 0.04 ± 0.01Aa 0.04 ± 0.01Aa
T2 0.05 ± 0.02Aa 0.06 ± 0.02Aa 0.05 ± 0.01Aa
T3 0.06 ± 0.02Aa 0.05 ± 0.01Aa 0.06 ± 0.02Aa
T4 0.06 ± 0.01Aa 0.06 ± 0.02Aa 0.05 ± 0.01Aa
As (mg·kg−1) T0 0.02 ± 0.01Aa 0.02 ± 0.01Aa 0.02 ± 0.01Aa
T1 0.03 ± 0.01Aa 0.03 ± 0.01Aa 0.03 ± 0.01Aa
T2 0.02 ± 0.01Aa 0.03 ± 0.01Aa 0.03 ± 0.01Aa
T3 0.03 ± 0.01Aa 0.04 ± 0.01Aa 0.03 ± 0.01Aa
T4 0.04 ± 0.01Aa 0.03 ± 0.01Aa 0.04 ± 0.01Aa
Hg (mg·kg−1) T0 0.001 ± 0.001Aa 0.001 ± 0.001Aa 0.001 ± 0.001Aa
T1 0.001 ± 0.001Aa 0.001 ± 0.001Aa 0.001 ± 0.001Aa
T2 0.001 ± 0.001Aa 0.001 ± 0.001Aa 0.001 ± 0.001Aa
T3 0.002 ± 0.000Aa 0.002 ± 0.001Aa 0.002 ± 0.000Aa
T4 0.002 ± 0.001Aa 0.002 ± 0.000Aa 0.002 ± 0.001Aa
Cr (mg·kg−1) T0 0.04 ± 0.01Aa 0.05 ± 0.01Aa 0.04 ± 0.01Aa
T1 0.05 ± 0.01Aa 0.04 ± 0.01Aa 0.06 ± 0.02Aa
T2 0.06 ± 0.01Aa 0.05 ± 0.01Aa 0.05 ± 0.01Aa
T3 0.05 ± 0.01Aa 0.06 ± 0.01Aa 0.05 ± 0.01Aa
T4 0.06 ± 0.01Aa 0.06 ± 0.01Aa 0.06 ± 0.01Aa

Different capital letters in the same column indicate a significant difference at α = 0.01. Different lowercase letters in the same row indicate a significant difference at α = 0.05. T0, no Se fertilizer; T1, 1,080 g·ha−1 pure Se; T2, 2,160 g·ha−1 pure Se; T3, 3,240 g·ha−1 pure Se; T4, 4,320 g·ha−1 pure Se; BGW-1, black-grained wheat genotype Xihei 88; BGW-2, black-grained wheat genotype Heidali; WGW-2, white-grained wheat cultivar Pubing 151.