Treatment | Days of treatment | Total root length/cm | Taproot length/cm | Lateral root length/cm |
pH4 | 4 | 145.32 ± 6.10a(a) | 7.62 ± 0.73a(a) | 137.10 ± 4.88a(a) |
8 | 153.52 ± 2.54b(a) | 8.29 ± 0.17a(a) | 144.72 ± 2.42b(a) | |
12 | 159.26 ± 0.99b(a) | 8.78 ± 0.76a(a) | 150.05 ± 0.91b(a) | |
pH4.5 | 4 | 154.39 ± 1.19a(b) | 8.14 ± 0.64a(a) | 145.93 ± 0.58a(b) |
8 | 166.42 ± 3.57b(b) | 8.85 ± 0.57ab(a) | 156.73 ± 3.21b(b) | |
12 | 174.85 ± 2.31c(b) | 9.63 ± 0.61b(a) | 163.34 ± 1.38c(b) | |
pH5 | 4 | 159.38 ± 0.97a(bc) | 8.51 ± 0.29a(a) | 150.88 ± 0.49a(c) |
8 | 177.31 ± 1.75b(c) | 9.36 ± 0.27b(b) | 167.12 ± 1.50b(c) | |
12 | 189.63 ± 0.51c(c) | 10.53 ± 0.46c(b) | 178.88 ± 0.44c(c) | |
pH6 | 4 | 164.58 ± 2.43a(c) | 8.78 ± 0.43a(a) | 155.23 ± 2.15a(c) |
8 | 187.62 ± 1.50b(d) | 9.85 ± 0.92b(b) | 177.09 ± 0.48b(d) | |
12 | 208.96 ± 1.49c(d) | 11.25 ± 0.40c(c) | 197.96 ± 1.59c(d) |