Effects of FACE on Rice Leaf Photosynthesis and Transpiration in a Paddy Field--Changes of Parameters in Farquhar and Ball-Berry Models under Elevated CO2
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- IKAWA Hiroki
- Graduate School of Agricultural Science, Ehime University
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- OUE Hiroki
- Faculty of Agriculture, Ehime University
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- YOSHIMOTO Mayumi
- National Institute for Agro-Environmental Sciences
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- KOBAYASHI Kazuhiko
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
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- OKADA Masumi
- National Agricultural Research Center for Tohoku Region
書誌事項
- タイトル別名
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- Effects of FACE on Rice Leaf Photosynthesis and Transpiration in a Paddy Field -Changes of Parameters in Farquhar and Ball-Berry Models under Elevated CO<sub>2</sub>-
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In order to evaluate the effects of FACE (Free air CO2 enrichment) on the leaf photosynthesis and transpiration of the rice plant, we conducted leaf level measurements by using LI-6400 in both the FACE and the ambient plots through several growing stages. Compared to the ambient plot, the leaf photosynthesis was higher and the leaf transpiration was lower in the FACE plot. The Farquhar model and Ball-Berry model were applied to identify the physiological properties of the rice plants both in the FACE and ambient conditions. The parameters of the models were determined by fitting the models to the observed data. With the decided parameters, we assayed the sensitive analysis for the leaf photosynthesis and transpiration. Applying the identical atmospheric CO2 into the model, the leaf photosynthesis simulated in the FACE leaf was lower than that of the ambient leaf, while the transpiration simulated in the FACE leaf was higher than that of the ambient leaf. <br> These results suggest that the potential activity of the photosynthesis decreased and the potential activity of the transpiration increased in the FACE leaves.
収録刊行物
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- 農業気象
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農業気象 60 (5), 593-596, 2005
日本農業気象学会
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詳細情報 詳細情報について
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- CRID
- 1390001204668997376
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- NII論文ID
- 130006847553
- 40015149449
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- NII書誌ID
- AA11530034
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- ISSN
- 18810136
- 00218588
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- NDL書誌ID
- 8541083
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可