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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12001/1442

 
Title :オクラ葉身における光合成特性
Title alternative :Photosynthetic characteristics in Okra plants
Authors :比屋根, 真一
川満, 芳信
高江洲, 賢文
Authors alternative :Hiyane, Shin-ichi
Kawamitsu, Yoshinobu
Takaesu, Yoshifumi
Authors affiliation :沖縄県農試宮古支場
琉球大学農学部
沖縄県農試名護支場
Issue Date :Jun-2000
Publisher :沖縄農業研究会
Type Local :雑誌掲載論文
Type (NII) :Journal Article
ISSN :1344-1477
Abstract :We measured the responses of photosynthesis to environmental conditions, such as photon flux density, humidity (vapor pressure difference), temperature and CO_2, in Okra plants. Photosynthetic rate was saturated at 1700 μmol photon m^<-2>s^<-1>. The photosynthesis was decreased when vapor pressure difference was increased up to 3kPa. Optimum temperature for photosynthesis measured under VPD controlled conditions was found at around 25℃. Photosynthetic rate saturated at 1000ppm of CO_2 under high light conditions. Photosynthetic rate at various CO_2 levels was measured and limitations to photosynthetic rate at ambient CO_2 caused by finite, limiting carboxylation efficiency, maximum photosynthesis, and stomatal conductance were estimated from an analysis of A/Ci curve model. The results suggested that the carboxylation efficiency was more important limiting factor than maximum photosynthesis and stomatal conductance.
Rights :沖縄農業研究会
URI :http://hdl.handle.net/20.500.12001/1442
Comment :通巻47号
Citation :沖縄農業 Vol.34 no.2 p.8 -13
Appears in Collections:Journal of Okinawa agriculture

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