Table 1.
Fresh weights of different parts (mg) and plant height (cm) of Catharanthus roseus under chitooligosaccharides treatments.
| Treatment | COS Concentration (μg/mL) | Root Weight | Stem Weight | Leaf Weight | Plant Height |
|---|---|---|---|---|---|
| Control | 0 | 155.56 ± 51.14 h | 73.56 ± 12.58 h | 297.222 ± 37.31 g | 3.75 ± 0.36 f |
| 1 kDa COS | 0.01 | 199.84 ± 4.09 fg | 84.58 ± 3.81 fgh | 375.96 ± 10.60 f | 4.39 ± 0.15 de |
| 0.1 | 293.30 ± 17.84 c | 102.90 ± 2.83 f | 434.72 ± 12.78 e | 4.76 ± 0.15 cd | |
| 1 | 187.38 ± 5.85 fgh | 81.11 ± 4.60 gh | 366.24 ± 9.49 f | 4.13 ± 0.16 ef | |
| 10 | 180.54 ± 13.19 fgh | 75.68 ± 1.79 h | 307.76 ± 6.12 g | 3.99 ± 0.05 ef | |
| 2 kDa COS | 0.01 | 255.19 ± 6.64 d | 185.75 ± 15.70 d | 475.73 ± 6.78 d | 4.58 ± 0.07 cd |
| 0.1 | 333.91 ± 4.13 b | 212.13 ± 12.10 c | 557.72 ± 16.71 c | 4.95 ± 0.13 c | |
| 1 | 239.56 ± 4.00 de | 175.44 ± 11.53 d | 409.22 ± 5.13 e | 4.83 ± 0.06 cd | |
| 10 | 214.53 ± 3.73 ef | 90.64 ± 6.38 fgh | 318.81 ± 5.64 g | 4.41 ± 0.16 de | |
| 3 kDa COS | 0.01 | 332.00 ± 12.46 b | 230.66 ± 4.79 b | 621.57 ± 24.02 b | 5.49 ± 0.37 b |
| 0.1 | 416.26 ± 17.46 a | 264.57 ± 10.57 a | 702.33 ± 13.10 a | 6.57 ± 0.16 a | |
| 1 | 300.46 ± 19.80 bc | 175.44 ± 6.80 e | 548.48 ± 18.34 c | 5.70 ± 0.19 b | |
| 10 | 172.40 ± 5.33 gh | 99.16 ± 5.20 fg | 355.60 ± 12.66 f | 4.84 ± 0.22 cd |
COS: chitooligosaccharides. Values represent mean ± standard deviation (n = 3). Values in a column with different letters are significantly different (p < 0.05). Best results in bold.