Table 1 Effects of different concentrations of Na2SeO4 on physiological indexes of C. violifolia
Na2SeO4 concentration (mg L− 1) | Fresh weight per plant (g) | Chlorophyll content (mg g− 1) | Free amino acid content (μg g− 1) | Vitamin C content (mg 100 g− 1) |
|---|---|---|---|---|
0 | 7.43 ± 0.90 b | 0.92 ± 0.13 a | 61.91 ± 3.48 b | 1.74 ± 0.43 b |
0.25 | 10.30 ± 1.06 a | 0.94 ± 0.14 a | 63.73 ± 4.72 b | 2.52 ± 1.14 ab |
4.0 | 8.01 ± 0.54 ab | 1.05 ± 0.04 a | 60.22 ± 2.21 b | 1.83 ± 0.59 b |
16.0 | 2.76 ± 0.17 c | 0.51 ± 0.03 b | 92.71 ± 5.65 a | 5.04 ± 0.86 a |