Table 4.
Effect of extracts on the growth of sugarcane tissue-cultured seedlings and allelopathy evaluation.
| Treatment | Test item | Allelopathic RI | Allelopathic synthesis effect SE | ||||
|---|---|---|---|---|---|---|---|
| Root length growth (cm) | Seedling height growth (cm) | Seedling fresh weight growth (g) | Root length growth | Seedling height growth | Seedling fresh weight growth | ||
| CK | 3.21 ± 0.36a | 23.5 ± 2.0a | 2.07 ± 0.12a | 0a | 0a | 0a | 0a |
| J1-1 | 2.57 ± 0.21bc | 19.3 ± 1.0b | 1.83 ± 0.10b | − 0.20bcd | − 0.18b | − 0.11b | − 0.16bc |
| J1-2 | 2.51 ± 0.22bc | 18.8 ± 1.5bc | 1.72 ± 0.11bc | − 0.22 cd | − 0.20c | − 0.17bc | − 0.20 cd |
| J1-3 | 2.34 ± 0.24 cd | 17.0 ± 1.1cde | 1.67 ± 0.10bc | − 0.28de | − 0.27de | − 0.19bc | − 0.25ef |
| J2-1 | 2.60 ± 0.10bc | 18.0 ± 0.6bcd | 1.82 ± 0.12b | − 0.19bc | − 0.23bcd | − 0.12b | − 0.18bc |
| J2-2 | 2.41 ± 0.10 cd | 16.7 ± 0.8de | 1.72 ± 0.11bc | − 0.25cde | − 0.29de | − 0.17bc | − 0.24de |
| J2-3 | 2.15 ± 0.09d | 15.8 ± 1.3e | 1.63 ± 0.08c | − 0.33e | − 0.33e | − 0.21c | − 0.29f. |
| J3-1 | 2.81 ± 0.12b | 19.3 ± 1.0b | 1.81 ± 0.10b | − 0.13b | − 0.18b | − 0.12b | − 0.14b |
| J3-2 | 2.61 ± 0.09bc | 18.2 ± 0.9bcd | 1.73 ± 0.12bc | − 0.19bc | − 0.23bcd | − 0.16bc | − 0.19 cd |
| J3-3 | 2.37 ± 0.13 cd | 17.3 ± 1.1cde | 1.73 ± 0.08bc | − 0.26cde | − 0.26cde | − 0.16bc | − 0.23de |
Data are the mean ± standard deviation of three replicates. Different lowercase letters in each column represent significant differences at the 0.05 level.
CK blank control, RI response index, SE synergistic allelopathy effect index.