Figure 2.

Hydroponic system. A. The utilised hydroponic system included an accumulation tank for 200 l of nutrient solution that was connected to three boxes for plant cultivation. B. The nutrient media circulated permanently between the boxes and the tank, ensuring that within and between boxes all plants were exposed to the same nutrient composition.

Hoffmann et al. BMC Genetics 2012 13:88   doi:10.1186/1471-2156-13-88
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