In order to investigate co-creation in communication and morphogenesis in plant, not only spatio pattens of electric field forming around root but also temporal changes must be measured in detail. Therefore, high speed vibration probe system was build by installing newly proposed vibration mechanism in this study. Consequently, applying our system, it was shown that fluctuation exists in the electric field and its spectral distribution often follows a trend of 1/f^k. Furthermore, entrainment behavior was observed in some cases of settling two roots in the same chamber.