| |
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
