| HP | MP | LP |
---|
vmax [nmol min−1 g−1] | 0.689 (±0.164)a
| 11.140 (±1.065)b
| 9.311 (±0.908)b
|
Km [μM] | n.d. | 25.87 (±9.87)ns
| 19.85 (±8.11)ns
|
Cmin [μM] | n.d. | 1.08 (±0.91)ns
| 1.41 (±1.19)ns
|
- Kinetic parameters (estimate ± standard error) for the uptake of P in plants grown with one of three different P concentrations in the nutrient solution in sand (HP: 641 μM, MP: 6.4 μM, LP: 0.064 μM). Model calculated with data from 6 different plants per treatment. Different letters in rows indicate significant differences at p ≤ 0.05. vmax: maximum uptake rate, Km: Michaelis-Menten constant, Cmin: minimal concentration needed for uptake, n.d.: not determined