Fig. 7
From: Quantification of seed–soil contact of sugar beet (Beta vulgaris) using X-ray Computed Tomography
2D and 3D representation of pelleted and coated commercial sugar beet seeds in field cores sampled directly after sowing by drilling. Sampling was executed blindly which resulted in non-uniform positioning of the seeds in the column. a, c and e represent 2D slices of X-ray scans showing different levels of contact. b, d and f display 3D representations indicating soil (greyscale), air space (yellow), soil in contact with the seed (red)