MRI in soils: Determination of water content changes due to root water uptake by means of Multi-Slice-Multi-Echo sequence (MSME)
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| Title: | Main Title: MRI in soils: Determination of water content changes due to root water uptake by means of Multi-Slice-Multi-Echo sequence (MSME) |
| Description: | Abstract: Root water uptake by ricinus communis (castor bean) in fine sand was investigated using MRI with multiecho sampling. Before starting the experiments the plants germinated and grew for 3 weeks in a cylindrical container with a diameter of 9 cm. Immediately before the MRI experiments started, the containers were water-saturated and sealed, so water content changes were only caused by root water uptake. In continuation of a preceding work, where we applied SPRITE we tested a multi-echo multi-slice sequence (MSME). In this approach, the water content was imaged by setting TE = 6.76 ms and nE = 128 with an isotropic resolution of 3.1mm. We calculated the water content maps by biexponential fitting of the multi-slice echo train data and normalisation on reference cuvettes filled with glass beads and 1 mM NiCl2 solution. The water content determination was validated by comparing to mean gravimetric water content measurements. By coregistration with the root architecture, visualised by a 3D fast spin echo sequence (RARE), we conclude that the largest water content changes occurred in the neighbourhood of the roots and in the upper layers of the soil. |
| Identifier: | 10.2174/187476980103010057 (DOI) |
Responsible Party
| Creators: | Andreas Pohlmeier (Author), Frank Vergeldt (Author), Edo Gerkema (Author), Henk van As (Author), Dagmar van Dusschoten (Author), Harry Vereecken (Author) |
| Publisher: | Bentham Open |
| Publication Year: | 2013 |
Topic
| TR32 Topic: | Soil |
| Related Subproject: | A1 |
| Subjects: | Keywords: MRI, Root System, RWU, Relaxometric Imaging |
File Details
| Filename: | 2010_Pohlmeier_OMRJ.pdf |
| Data Type: | Text - Article |
| Size: | 6 Pages |
| File Size: | 339 KB |
| Date: | Accepted: 20.11.2009 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
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| Download Permission: | Only Project Members |
| General Access and Use Conditions: | For internal use only |
| Access Limitations: | For internal use only |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | The Open Magnetic Resonance Journal |
| Volume: | 3 |
| Number of Pages: | 6 (69 - 74) |
Metadata Details
| Metadata Creator: | Markus Küppers |
| Metadata Created: | 02.12.2013 |
| Metadata Last Updated: | 02.12.2013 |
| Subproject: | A1 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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