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Cumulative pore size distribution at different distances from the barley root surface. ‘Bulk’, pore size distribution at 500–800 μm from the root surface; ‘Rhizo’, pore size distribution at 0–300 μm from the root surface. Only pores > 5 μm were characterised. WD, wet–dry treatment; D, dry treatment. Error bars represent ± SE of the mean.
