On the other hand, the origin of these peaks can be discussed according to the assumption that the dried water hyacinth plant is a cellulosic like material. Hence, we may attribute them to the rotation of the polar side group (OH or/and CH2OH) [33]. Regarding to the cellulose chemical structure, the number of OH groups located on the cellulose main chain is much greater than that noticed for CH2OH groups. This means that rotations or movements of OH become more hindered by the intramuscular forces; thus it needs longer time (lower frequencies) to take place. Accordingly, HN2 the peak is a characterizing spectrum for OH-side group rotation whereas the HN3 peak is to characterize the CH2OH-polar side group rotation. From the above analysis, one can conclude that the dielectric relaxations of the plant root and shoot are described by dc conductivity, interfacial polarization or/and dipolar polarization.