Table 2.
Comparison of morphological parameters of Brassica napus L. irrigated with fulvic acid grown at different concentrations of paper sludge.
| Growth parameters | Concentrations of paper sludge (%) | Treatments of FA | ||
|---|---|---|---|---|
| 0 | 10% | 20% | ||
| Root length (cm) | 0 | 4.0cC ± 1.56 | 6.16bcB ± 2.86 | 6.7cA ± 2.52 |
| 5 | 6.0bB ± 1.73 | 6.66bA ± 2.51 | 7.0bA ± 2.53 | |
| 10 | 6.83aC ± 0.76 | 7.33aB ± 1.52 | 8.0aA ± 1.00 | |
| 15 | 3.0dB ± 1.89 | 3.8cA ± 2.37 | 3.93dA ± 2.67 | |
| Shoot length (cm) | 0 | 24.33bB ± 2.69 | 28.6aA ± 2.77 | 29aA ± 2.64 |
| 5 | 27.33aB ± 2.79 | 28.16aB ± 2.67 | 31.66aA ± 2.78 | |
| 10 | 17.83cC ± 2.14 | 20.0bB ± 2.01 | 26bA ± 2.77 | |
| 15 | 7.5dB ± 1.23 | 13.0cA ± 1.01 | 14.5cA ± 1.52 | |
| Number of leaves | 0 | 9.33aB ± 1.05 | 12.33aA ± 2.21 | 13.33aA ± 2.88 |
| 5 | 9.66aC ± 1.30 | 11.0bB ± 2.81 | 13aA ± 2.55 | |
| 10 | 7.66bB ± 1.86 | 9.66cA ± 2.42 | 9.93cA ± 2.82 | |
| 15 | 5.86cB ± 0.80 | 8.0dA ± 2.57 | 8.13cA ± 2.08 | |
| Number of flowers | 0 | 2.33aB ± 1.20 | 2.66aB ± 1.30 | 3.0aA ± 2.10 |
| 5 | 2.66aA ± 2.30 | 2.99aA ± 1.40 | 3.06aA ± 1.99 | |
| 10 | 2.0bB ± 0.15 | 2.33bB ± 2.11 | 3.1aA ± 1.54 | |
| 15 | 2.0bB ± 0.05 | 2.5bA ± 0.5 | 2.0bB ± 1.00 | |
| Fresh weight of shoot (g) | 0 | 15.42aC ± 1.04 | 16.03aB ± 2.09 | 18.86aA ± 2 0.38 |
| 5 | 14.55aB ± 1.02 | 14.94bB ± 2.40 | 18.8aA ± 1.12 | |
| 10 | 10.05bC ± 1.27 | 12.93cB ±1.85 | 13.99aA ± 1.49 | |
| 15 | 3.36cC ± 1.94 | 5.18dB ± 1.47 | 6.72cA ± 1.47 | |
| Fresh weight of root (g) | 0 | 2.39aB ± 0.27 | 2.90aA ± 1.03 | 3.00aA ± 1.10 |
| 5 | 2.13aB ± 0.64 | 2.68aA ± 1.09 | 2.98bA ± 2.57 | |
| 10 | 1.77bC ± 0.85 | 2.05bB ± 0.31 | 2.83bA ± 1.38 | |
| 15 | 0.64cC ± 0.11 | 1.59cB ± 0.13 | 1.92cA ± 1.73 | |
| Dry weight of shoot (g) | 0 | 2.49aB ± 1.10 | 2.87bB ± 0.76 | 6.84aA ±1.75 |
| 5 | 2.20aB ± 0.50 | 2.77bB ± 0.64 | 5.33bA ± 1.61 | |
| 10 | 2.74aC ± 0.60 | 3.53aB ± 0.28 | 5.05bA ±1.33 | |
| 15 | 0.48bB ± 0.10 | 0.53cA ± 0.20 | 0.59cA ± 0.60 | |
| Dry weight of root (g) | 0 | 0.68aB ± 0.20 | 0.93aA ± 0.96 | 1.04aA ± 0.23 |
| 5 | 0.46bC ± 0.85 | 0.80aB ± 0.03 | 0.96aA ± 0.96 | |
| 10 | 0.39cC ± 0.77 | 0.65bB ± 0.66 | 0.80aA ± 0.41 | |
| 15 | 0.31cC ± 0.17 | 0.64bA ± 0.02 | 0.69cA ± 0.50 | |
Each value is a mean ± standard deviation of 3 replicates, and different superscript lowercase letters in each column and capital letters within rows show a significant difference. Values with similar letters are significantly not different from each other according to DMRT at p ≤ 0.05.
FA, Fulvic acid; PS, Paper sludge.