Table 3.
Effects of rhizosphere bacterial inoculations on growth and photosynthetic pigment of P. vulgaris.
| Treatment | Seed germination (%)⁎ | Shoot length (cm)⁎⁎ | Root length (cm)⁎⁎ | Biomass (g/ FW)⁎⁎ | Photosynthetic pigments (mg/g FW)⁎⁎ |
|||
|---|---|---|---|---|---|---|---|---|
| Chlorophyll a | Chlorophyll b | Total chlorophyll | Carotenoid | |||||
| Control | 82.11 ± 3.04a | 38.11 ± 0.71c | 9.33 ± 0.88a | 2.4 ± 0.17ab | 2.47 ± 0.15bc | 2.11 ± 0.06b | 4.58 ± 0.24b | 1.15 ± 0.09a |
| Cr(VI) | 57 ± 9.9b | 18.44 ± 0.65d | 4.66 ± 1.15b | 1.5 ± 0.26b | 2.11 ± 0.10c | 1.73 ± 0.05c | 3.84 ± 0.11c | 1.34 ± 0.04a |
| AR6 + Cr(VI) | 88.12 ± 6.78a | 72.33 ± 1.14a | 11.66 ± 0.39a | 3.16 ± 0.14a | 3.26 ± 0.10a | 2.57 ± 0.06a | 5.83 ± 0.20a | 1.39 ± 0.03a |
| AR8 + Cr(VI) | 86.32 ± 6.02a | 57.82 ± 2.73b | 10.34 ± 0.54a | 2.5 ± 0.29ab | 2.74 ± 0.06b | 2.11 ± 0.07b | 4.85 ± 0.05b | 1.16 ± 0.07a |
| F value | 41.86 | 227.50 | 14.01 | 9.036 | 18.26 | 27.87 | 45.99 | 3.64 |
Note: FW - fresh weight; values followed by different letters are significantly different at P < 0.05.
Kruskal-Wallis – median and interquartile range.
One-way ANOVA – mean ± standard error.