Table 1.
Effect of AgNPs, Sphingobacterium ginsenosidiumtans (S. g), and their combination on Trigonella foenum-gracum L. plant growth parameters under HgCl2 stress (0, 2, 4, and 6 mM).
| Treatments | Root Length (cm) | Shoot Length (cm) | Number of Leaves/Plant | Area of Leaf (cm2) | Fresh Weight (mg) | Dry Weight (mg) |
|---|---|---|---|---|---|---|
| 0.0 mM HgCl2 | 9.03 ± 0.52 a | 15.29 ± 0.99 a | 5.78 ± 0.04 a | 3.37 ± 0.02 a | 33.89 ± 0.19 a | 12.59 ± 0.93 a |
| AgNPs | 8.98 ± 0.79 a | 14.76 ± 0.48 ab | 5.63 ± 0.03 a | 3.24 ± 0.01 b | 33.67 ± 0.16 ab | 11.37 ± 0.82 b |
| S. g | 8.16 ± 0.48 b | 14.53 ± 0.74 b | 5.61 ± 0.07 a | 3.19 ± 0.03 bc | 32.30 ± 0.14 bc | 11.12 ± 0.21 b |
| AgNPs + S. g | 8.13 ± 0.14 b | 14.42 ± 0.14 bc | 5.61 ± 0.03 a | 3.17 ± 0.04 bc | 32.45 ± 0.12 bc | 11.04 ± 0.34 b |
| 2.0 mM HgCl2 | 7.32 ± 0.90 c | 13.38 ± 0.88 cd | 5.06 ± 0.02 b | 2.97 ± 0.03 cd | 30.08 ± 0.12 cd | 8.45 ± 0.76 c |
| 2.0 mM HgCl2 + AgNPs | 7.13 ± 0.06 c | 13.24 ± 0.12 d | 4.98 ± 0.06 b | 2.84 ± 0.03 de | 29.36 ± 0.23 de | 8.37 ± 0.86 c |
| 2.0 mM HgCl2 + S. g | 7.06 ± 0.23 c | 13.11 ± 0.27 d | 4.90 ± 0.05 b | 2.79 ± 0.09 e | 29.11 ± 0.15 df | 8.31 ± 0.29 c |
| 2.0 mM HgCl2 + AgNPs + S. g | 7.04 ± 0.55 c | 12.89 ± 0.58 d | 4.86 ± 0.09 b | 2.75 ± 0.01 e | 29.02 ± 0.19 df | 8.28 ± 0.42 c |
| 4.0 mM HgCl2 | 6.26 ± 0.88 d | 9.28 ± 0.19 e | 3.99 ± 0.08 c | 1.17 ± 0.04 f | 26.88 ± 0.18 eg | 5.41 ± 0.83 d |
| 4.0 mM HgCl2 + AgNPs | 6.01 ± 0.35 de | 9.13 ± 0.33 e | 3.81 ± 0.07 cd | 1.04 ± 0.00 fg | 26.43 ± 0.17 fg | 5.24 ± 0.93 d |
| 4.0 mM HgCl2 +S. g | 5.81 ± 0.29 e | 9.07 ± 0.27 e | 3.78 ± 0.04 cd | 0.99 ± 0.03 g | 26.21 ± 0.22 gh | 5.19 ± 0.64 d |
| 4.0 mM HgCl2 + AgNPs + S. g | 5.66 ± 0.69 e | 8.99 ± 0.16 e | 3.73 ± 0.02 d | 0.98 ± 0.03 g | 26.19 ± 0.14 gh | 5.16 ± 0.32 d |
| 6.0 mM HgCl2 | 3.35 ± 0.78 f | 5.76 ± 0.74 f | 3.01 ± 0.03 e | 0.93 ± 0.02 g | 24.06 ± 0.12 hi | 3.11 ± 0.54 e |
| 6.0 mM HgCl2 + AgNPs | 3.23 ± 0.55 f | 5.47 ± 0.56 f | 2.74 ± 0.05 ef | 0.88 ± 0.07 gh | 23.22 ± 0.16 i | 3.02 ± 0.83 ef |
| 6.0 mM HgCl2 +S. g | 3.10 ± 0.33 f | 5.31 ± 0.38 f | 2.66 ± 0.08 f | 0.76 ± 0.01 h | 23.19 ± 0.19 i | 2.74 ± 0.74 ef |
| 6.0 mM HgCl2 + AgNPs+ S. g | 3.02 ± 0.71 f | 5.26 ± 0.79 f | 2.59 ± 0.04 f | 0.74 ± 0.05 h | 23.04 ± 0.22 i | 2.58 ± 0.54 f |
| An honestly significant difference (HSD) at p < 0.05 probability level using Tukey’s test | ||||||
| 0.48 | 0.85 | 0.33 | 0.17 | 2.14 | 0.58 | |
Mean ± SD values for treatment over three replications. According to Tukey’s test, different letters within the same columns show significant differences (p < 0.05).