Table 1 Effect of NaHS on chlorophyll content, dry biomass, and Fe concentration of iron-deficient Glycine max plants. The 3-w-old Glycine max seedlings were treated with the nutrition solution containing 1 μM Fe(III)-EDTA or 50 μM Fe(III)-EDTA with or without 100 μM NaHS for 15 days. Error bars represents the mean ± SE. Different letters indicate significant differences with P < 0.05. –Fe, 1 μM Fe; −Fe + NaHS, seedlings treated with 100 μM NaHS and 1 μM Fe; +Fe, 50 μM Fe; +Fe + NaHS, seedlings treated with 100 μM NaHS and 50 μM Fe
Treatments | Chlorophyll content | Dry biomass (g per plant) | Fe concentration (mg g− 1 DW) | ||||
|---|---|---|---|---|---|---|---|
(mg g-1 FW) | Leaf | Stem | Root | Leaf | Stem | Root | |
- Fe | 0.564 ± 0.022 d | 0.106 ± 0.004 b | 0.118 ± 0.008 b | 0.046 ± 0.001 b | 0.377 ± 0.005 c | 0.202 ± 0.005 c | 0.309 ± 0.013 d |
- Fe + NaHS | 0.992 ± 0.051 c | 0.186 ± 0.007 a | 0.209 ± 0.002 a | 0.080 ± 0.002 a | 0.490 ± 0.028 b | 0.244 ± 0.021 b | 0.399 ± 0.022 c |
+ Fe | 1.353 ± 0.046 b | 0.174 ± 0.006 a | 0.214 ± 0.024 a | 0.084 ± 0.008 a | 0.696 ± 0.033 a | 0.425 ± 0.035 a | 0.855 ± 0.113 b |
+ Fe + NaHS | 1.670 ± 0.068 a | 0.181 ± 0.005 a | 0.195 ± 0.003 a | 0.083 ± 0.001 a | 0.634 ± 0.041 a | 0.394 ± 0.018 a | 1.805 ± 0.107 a |