ESTIMATION OF CARBON FIXATION BY VULPIA MYUROS AND PASPALUM NOTATUM AS PARTNER PLANTS IN FRUIT GROWING USING A SOLID ELECTROLYTE CO₂ SENSOR

To investigate the utility of Vulpia myuros (L.) C. C. Gmel. and Paspalum notatum Flügge. beyond effective functions as partner plants in fruit growing on carbon fixation against global warming, we developed a simple measurement system equipped with solid electrolyte CO₂ sensors, an A/D converter and a personal computer.
Consequently, this system was very useful for the continuous measurements of CO₂ concentration in the air surrounding V. myuros and P. notatum and their photosynthetic CO₂ assimilation rates.
Furthermore, the ratio of contribution of CO₂ assimilation per day to plant biomass (dry weight) in clear weather was 0.011% in V. myuros and 0.005% in P. notatum. In addition, carbon fixation by V. myuros and P. notatum was estimated at 6.854 ton C (carbon)/ha for 3 months and 17.256 ton C/ha for 4 months in vigorous growth season, respectively.
These results indicate that the introduction of sod culture system using V. myuros and P. notatum into fruit growing will be very effective in reducing CO₂ in the air.

XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on CLIMWATER 2010: Horticultural Use of Water in a Changing Climate

T. Ishii, M. Aota , A.F. Cruz

carbon fixation, Paspalum notatum, sod culture, solid electrolyte CO₂ sensor, Vulpia myuros

https://doi.org/10.17660/ActaHortic.2011.922.47