Agri-wave technology is to improve the yield and quality of plants such as vegetables, flowers, and fruit trees by spreading sound waves of certain frequencies and spraying a compound

234 Abstract— The growth and health status of plants can be accessed from the electrical properties of its limbs such as leaves and stem. Present investigations were carried out to study the electrical impedance of Aloe Barbadensis Miller (Aloe-vera) leaves for investigating the effect of external ac current on its tissues Impedance was estimated over the frequency ranging from 500 Hz to 20 kHz. Aloe-vera plant has been chosen because of its extensive applications in dermatology. It is also known as “Lilly of Desert”. The leaves of Aloe-vera contain a soothing thick sap that is useful for treatment and curing of wounds and diseases. The estimated impedance of the leaves was found to be a function of applied ac frequency across the leaves. The impedance of the leaf tissue decreases with the increase in frequencies of input signal. This may be due to change of dielectric properties of Aloe-vera tissues indicating a mechanism of evaluating the health status of Aloe-vera by estimating its electrical impedance