Table 4.
Effects of nutrient solution temperature (NST) on camptothecin concentrations in O. pumila at 35 days after the start of the treatment (DAT) in experiment 2.
| NST (°C) | Camptothecin Concentration (mg g−1 DW) | |||
|---|---|---|---|---|
| Leaf 1 | Stem | Root | ||
| Young | Mature | |||
| T10 | 0.5 | 0.3 a 2 | 1.3 a | 1.8 a |
| T20 | 0.5 | 0.1 b | 1.4 a | 2.0 a |
| T26 3 | 0.4 | 0.1 b | 0.8 b | 1.0 b |
1 Leaves from the top to the second node were classified as young leaves, and the leaves below that were classified as mature leaves. 2 Different letters within columns indicate significant differences among the treatments on 35 DAT at p < 0.05 by Tukey–Kramer’s test (n = 3). 3 NST at T26 was not controlled.