Abstract
In this paper, we report a measurement method of photosynthesis activity for water plants. In the photosynthesis process, the plants absorb carbon dioxide (CO_2) and release carbohydrates and oxygen. The pH value of the water containing plants surely fluctuates through photosynthetic process. As CO_2 is readily soluble in water and decrease pH values, the pH value could be reflect photosynthesis and respiration of the water plants. To quantify the small changes of the pH values, we applied automatic pH measurement system consisting of ion-sensitive field effect transistor (ISFET) sensor that we have previously reported. The pH value in the test tank containing a water plant, cabomba caroliniana, increased 0.840 pH after 4 hours light irradiation. The result indicates that the CO_2 absorption of the plant during photosynthesis could be referred by the pH measurement.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
