Table 1.
Effects of nitrate supply on root development after 5 days
| Treatment | Length (cm) | Surface area (cm2) | Diameter (mm) | Tips (n) |
|---|---|---|---|---|
| NO3 – supply | 79.48±3.98a | 12.58±0.55a | 0.50±0.01d | 91.20±5.07a |
| NO3 – depletion | 51.61±2.96c | 8.60±0.46c | 0.55±0.01c | 67.40±4.57b |
| NH4 supply | 36.59±1.39d | 8.18±0.28c | 0.70±0.01a | 55.43±3.34c |
| NH4 depletion | 51.34±2.15c | 9.03±0.43c | 0.52±0.01d | 72.90±2.75b |
| NO3NH4 supply | 60.08±3.56b | 10.42±0.55b | 0.61±0.01b | 64.23±2.79b,c |
Different letters indicate statistically significant differences among samples (P < 0.05, ANOVA).