Geoelectrical tools are known to detect vadose zone processes, they can image the subsurface in a noninvasive fashion (for a relatively low price), and therefore they hold a great promise to be used in root and rhizosphere research. However, it is not clear how roots and roots activities affect the electrical properties of the soil. This understanding which stands in the heart of our research is crucial to utilized geoelectrical methods for root and rhizosphere studies. Therefore, the main objective of this work is to enhance our understanding of the mechanisms that govern the electrical properties of roots and their activities. Ultimately, our work will assist in the development of a non-invasive tool to image roots and their activity within the subsurface.