BBAuthors: Haber-Pohlmeier, S.; Advisor: -; Participants: Tötzke, C.; Lehmann, E.; Kardjilov, N.; Pohlmeier, A.; Oswald, S.E. (2019)
We addressed two questions using water‐filled test capillaries between 0.1 and 5 mm: which root diameters can still be detected by both methods, and to what extent are defined interfaces blurred by these imaging techniques? Going to real root system architecture, we demonstrated the sensitivity of the transportable MRI device by co‐registration with NCT and additional validation using X‐ray computed tomography. Under saturated conditions, we observed for the rhizosphere in situ a zone with shorter T1 relaxation time across a distance of about 1 mm that was not caused by reduced water content, as proven by successive NCT measurements. We conclude that the effective pore size in the por... 
