Abstract
Foliar biopotential arisen from a mini tomato plant versus its culture medium was monitored with the use of Beckman electrocardiography electrodes in comparing with the foliar temperature. Our goal was to develop an effective monitoring technique to apply for a better control system in Bioproduction factories.
Comparing with the leaf temperature, the foliar potential pattern under the light condition was very stable and clearly higher than that of the dark. It was also greatly increased by the addition of new nutrient solution to the culture medium. However, it then decreased and reached its original level about 72hrs after the addition of new solution. Hence, the monitoring of the foliar potential of the plant material against its culture medium might be a useful technique observing the physiological activities of plants as well as their culture solution conditions under controlled environmental atmosphere.
