Oxygen dynamics and plant-sediment interactions in isoetid ...

Paper 4Table 3. Leaf content of total phosphorus (TP), total nitrogen (TN) and chlorophyll from monocultures of Lobelia dortmannaand Littorella uniflora grown in the laboratory after about 200 days in experiments with addition of different amounts oflabile organic matter.LobeliaLittorellaTreatment TPTN Chlorophyll TPTN(mg P g -1 (mg N g -1 (mg g -1 (mg P g -1 (mg N g -1 Chlorophyll(mg g -1 DW)DW) DW) DW)DW) DW)0.0% 1.47 ± 0.19 22.0 ± 3.92 1.79 ± 0.29 1.30 ± 0.33 24.9 ± 2.8 5.17 ±0.890.1% 0.88 ± 0.24 14.3 ± 3.01 2.74 ± 0.39 1.21± 0.15 20.3 ± 0.8 4.32 ±0.540.2% 0.89 ± 0.25 18.8 ± 3.66 3.15 ± 0.97 0.93 ± 0.15 22.5 ± 1.2 5.30 ±1.210.4% 0.69 ± 0.18 18.1 ± 3.62 2.46 ± 0.57 1.23 ± 0.33 23.0 ± 4.9 5.97 ±1.320.8% 0.53 ± 0.17 12.6 ± 2.52 1.90 ± 0.31 0.62 ± 0.12 15.3 ± 2.7 4.79 ±0.811.6% 0.61 ± 0.13 13.0 ± 3.33 0.75 ± 0.13 0.81 ± 0.20 23.0 ± 6.7 4.67 ±1.94Lin reg. p p=0.09 p=0.11 p