Fig. 1From: A sterile hydroponic system for characterising root exudates from specific root types and whole-root systems of large crop plantsA photograph and a schematic drawing of the hydroponic system. The system is mainly comprised of an upper chamber that contains aerial part of the plant and a lower chamber that contains the nutrient solution and the plant root system. The plant is held between the two compartments with a plant holder insert. Numbers in bracket represent the part numbers listed in Table 2Back to article page