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Figure 1 | Plant Methods

Figure 1

From: Direct comparison of MRI and X-ray CT technologies for 3D imaging of root systems in soil: potential and challenges for root trait quantification

Figure 1

CT and MRI images of soil and bean roots in a small pot. The same plant grown in a soil filled pot with an inner diameter (I.D.) of 34 mm and a height of 200 mm was imaged sequentially with X-ray Computed Tomography (CT) and Magnetic Resonance Imaging (MRI). (a) Shows the upper part of the soil column below the pot material imaged with CT (gray-scale) measured with voxel size of 28 × 28 × 28 μm3 with the roots of a bean plant (Phaseolus vulgaris L.) highlighted (red). (b) The root system segmented from the same CT image as in (a) on a voxel size of 56 × 56 × 56 μm3. (c) Shows the same root system imaged one day later with MRI and a voxel size of 333 × 333 × 1000 μm3 with the last value representing the vertical dimension. Arrowheads denote the same roots in both images. DAS: days after sowing Scale bar: 10 mm.

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