Fig. 4From: Quantification of seed–soil contact of sugar beet (Beta vulgaris) using X-ray Computed TomographyExample contact ratio of naked and pelleted and coated sugar beet seeds. The seeds have grown for 1 day to ensure that the surrounding environment had sufficient time to settle. A Measured surface area of the seed. B Measured seed–soil contact area. C Ratio of contact area divided by surface area as a percentage. Error bars calculated for standard error deviation. N = 4Back to article page