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3D rendered barley root (hairs WD) and hairs including a region of interest showing the surrounding soil. Light blue structure is the segmented root, while dark blue structures are segmented root hairs within a region of interest (ROI) of 2 × 2 × 1 mm. Vertical length of the root is 1 mm. Only root hairs growing in air‐filled pores could be seen, and hence root hair structures are fragmented.
