2024-03-29T07:19:06Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02015526
2022-10-31T07:39:27Z
1642838163960:1642838308020:1642838308479:1642838329921
1642838403551:1642838412624
ソテツの光合成特性
Photosynthetic characteristics in Cycas revolute Thunb.
川満, 芳信
上原, 直子
泉, 裕巳
Kawamitsu, Yoshinobu
Uehara, Naoko
Izumi, Hiromi
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
http://purl.org/coar/resource_type/c_6501
沖縄農業研究会
Okinawa Agriculture Research Society
2000-06
VoR
1344-1477
AN00083297
沖縄農業
2
34
22
18
jpn
open access
沖縄農業研究会