Table 3.
Effects of nutrient solution temperature (NST) on growth of O. pumila at 35 days after start of the treatment (DAT) in experiment 2.
| DAT | NST (°C) | Fresh Weight (g) | Total Dry Weight (g) | Dry Matter Ratio (%) | Leaf Area (cm2) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Leaf 1 | Stem | Others 3 | Root | Total | Shoot | Root | |||||
| Young | Mature | ||||||||||
| 0 | 0.5 | 2.6 | 3.8 | 2.3 | 2.5 | 14.2 | 1.4 | 10.8 | 4.3 | 35.9 | |
| 35 | T10 | 1.3 | 3.0 | 4.5 | 4.5 b 2 | 4.7 | 18.0 b | 2.9 b | 19.4 | 7.2 a | 151.7 |
| T20 | 1.4 | 5.3 | 7.4 | 9.7 a | 6.2 | 30.1 a | 4.6 a | 17.7 | 6.0 ab | 254.2 | |
| T26 4 | 1.1 | 4.1 | 6.3 | 3.3 b | 4.2 | 18.9 b | 2.6 ab | 16.3 | 5.2 b | 202.0 | |
1 Leaves from the top to the second node were classified as young leaves, and the leaves under 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 Others are reproductive organs that included flowers, ovaries, and seed pods. 4 NST at T26 was not controlled.