Fig. 2From: A sterile hydroponic system for characterising root exudates from specific root types and whole-root systems of large crop plantsWheat growth stage and root diameter in the hydroponic system. Box plots showing a the leaf number (leaf stage), number of tillers and the number of nodal roots developed on the hydroponic plants after 30 days of cultivation, and b the diameter of each root type of the hydroponically-grown wheat plants (n = 10). Different lowercase letters above the plots indicate significant differences as determined by a one-way ANOVA with Holm–Sidak post hoc test (P < 0.001)Back to article page