Table 7.
Agronomic characters of different grades of Panax notoginseng seedlings at different growth stages
| Time (d) | Grade | Plant height (cm) | Stem height (cm) | Stem diameter (cm) | Root length (cm) | Root diameter (cm) | Mid-leaf length (cm) | Mid-leaf width (cm) | Number of rootlets | Chlorophyll content (SPAD) |
|---|---|---|---|---|---|---|---|---|---|---|
| 60 | Special | 20.9 ± 2.04 | 11.7 ± 1.19 | 0.372 ± 0.12 | 3.8 ± 1.19 | 1.19 ± 0.21 | 6.5 ± 1.53 | 2.3 ± 0.46 | 19 ± 3 | 29.9 ± 1.89 |
| Premium | 20 ± 2.16 | 10.5 ± 1.16 | 0.359 ± 0.12 | 3.6 ± 1.03 | 1.13 ± 0.23 | 5.8 ± 1.41 | 2.2 ± 1.06 | 13 ± 3 | 28.7 ± 1.06 | |
| Standard | 18.3 ± 2.35 | 9.1 ± 1.28 | 0.323 ± 0.12 | 3.1 ± 1.72 | 1.01 ± 0.51 | 4.9 ± 1.66 | 2.1 ± 0.59 | 12 ± 3 | 26.8 ± 2.08 | |
| 150 | Special | 24.8 ± 1.91 | 17.6 ± 2.08 | 0.406 ± 0.05 | 6.9 ± 0.67 | 1.65 ± 0.11 | 9.6 ± 0.52 | 3.5 ± 0.54 | 33 ± 4 | 41.8 ± 1.26 |
| Premium | 22.9 ± 2.23 | 15.9 ± 4.30 | 0.389 ± 0.03 | 6.0 ± 0.48 | 1.31 ± 0.15 | 8.3 ± 0.50 | 3.0 ± 0.23 | 23 ± 4 | 37.5 ± 1.32 | |
| Standard | 19.7 ± 2.29 | 12.6 ± 1.94 | 0.366 ± 0.02 | 5.1 ± 1.53 | 1.27 ± 0.09 | 6.4 ± 1.01 | 2.5 ± 0.23 | 17 ± 2 | 31.7 ± 1.09 | |
| 240 | Special | 26.3 ± 2.11 | 20.9 ± 2.02 | 0.449 ± 0.42 | 7.1 ± 0.81 | 1.74 ± 0.25 | 10.7 ± 0.45 | 4.1 ± 0.41 | 35 ± 5 | 59.4 ± 3.12 |
| Premium | 24.1 ± 1.23 | 17.9 ± 1.52 | 0.408 ± 0.22 | 6.3 ± 0.46 | 1.45 ± 0.17 | 9.1 ± 0.39 | 3.5 ± 0.32 | 27 ± 4 | 48.8 ± 2.78 | |
| Standard | 20.9 ± 1.09 | 13.8 ± 1.26 | 0.379 ± 0.12 | 5.6 ± 0.61 | 1.31 ± 0.19 | 6.9 ± 0.52 | 2.9 ± 0.35 | 19 ± 3 | 37.8 ± 1.95 |
SPAD, Soil and Plant Analyzer Development