@article{oai:u-ryukyu.repo.nii.ac.jp:02015526, author = {川満, 芳信 and 上原, 直子 and 泉, 裕巳 and Kawamitsu, Yoshinobu and Uehara, Naoko and Izumi, Hiromi}, issue = {2}, journal = {沖縄農業}, month = {Jun}, note = {In this paper, we measured the effect of photon flux density, leaf temperature, and CO_2 concentration on the photosynthetic rate, stomatal conductance, and transpiration rate in the leaf of cycad (Cycas revolute Thunb.), and optimum environmental conditions and air cleaning effect as a indoor appreciation plant were examined. The maximum value of photosynthetic rate at high photon flux density was 4.2 μmol m^<-2>s^<-1>, and there was the optimum temperature of photosynthetic rate at 28-30℃, and it has comparatively been stabilized between 23 to 31℃. The photosynthetic rate was increased rectilinear, even if the CO_2 concentration was increased to near 800ppm, and it tended to saturate afterwards. The A/Ci Curve was rectilinear in the range of measured CO_2 concentration. It was suggested that the leaf of Cycad is efficiently fixed CO_2, when the CO_2 concentration in the room is high. Since the leaf respired the oxygen simultaneously, it works for the air cleaning of the room., 論文}, pages = {18--22}, title = {ソテツの光合成特性}, volume = {34}, year = {2000} }