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Table 1 Biomass of waterweed in the river Parthe: quantitative determination of biomass growth in an area of 1 m2

From: The study of the variability of biomass from plants of the Elodea genus from a river in Germany over a period of two hydrological years for investigating their suitability for biogas production

Date Fresh mass [kg/m2] TS [% FM] TS [kg/m2] VS [% TS] VS [kg/m2]
06-06-2016a 12.2 5.2 0.6 82.7 0.5
12-07-2016a, b 20.6 6.5 1.3 76.4 1.0
08-08-2016 11.4 ± 3.0 6.1 ± 0.0 0.7 ± 0.2 79.7 ± 0.1 0.6 ± 0.1
12-09-2016 13.6 ± 1.5 6.2 ± 0.0 0.4 ± 0.1 78.3 ± 0.2 0.7 ± 0.1
10-10-2016 9.8 ± 2.5 6.9 ± 0.1 0.7 ± 0.2 74.3 ± 0.2 0.5 ± 0.1
  1. TS total solids, VS volatile solids
  2. aOnly single sampling without repetition (therefore, no standard deviation can be given)
  3. bHarvest approx. 1 km downstream; the water was deeper here, which meant that the plants had more room to grow