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光強度と光合成速度、蒸散速度ならびに水利用効率との関係からみたC₃,C₄作物の特性の違い
https://repository.lib.tottori-u.ac.jp/records/1973
https://repository.lib.tottori-u.ac.jp/records/19734d30d670-e7a6-432d-b69c-6efa9ccb0227
名前 / ファイル | ライセンス | アクション |
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(pdfファイル作成は農林水産省農林水産技術会議事務局筑波事務所)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-06-22 | |||||
タイトル | ||||||
タイトル | 光強度と光合成速度、蒸散速度ならびに水利用効率との関係からみたC₃,C₄作物の特性の違い | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Response Differences of Photosynthesis, Transpiration and Water Use Efficiency to Light Intensity in C₃ and C₄ Crop Species | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | ヒカリ キョウド ト コウゴウセイ ソクド ジョウサン ソクド ナラビニ スイリヨウ コウリツ トノ カンケイ カラ ミタ C3 C4 サクモツ ノ トクセイ ノ チガイ | |||||
著者 |
縣, 和一
× 縣, 和一× 竹内, 芳親× 川満, 芳信× 箱山, 晋× 武田, 友四郎× 遠山, 柾雄× Agata, Waichi× Kawamitsu, Yoshinobu× Hakoyama, Susumu× Takeda, Tomoshiro |
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著者所属 | ||||||
九州大学農学部栽培学研究室 | ||||||
著者所属 | ||||||
砂丘利用研究施設乾地生態部門 | ||||||
著者所属 | ||||||
九州大学農学部栽培学研究室 | ||||||
著者所属 | ||||||
九州大学農学部栽培学研究室 | ||||||
著者所属 | ||||||
九州大学農学部栽培学研究室 | ||||||
著者所属 | ||||||
砂丘利用研究施設乾地生態部門 | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To make clear the response differences of photosynthesis,transpiration and water use efficiency to light intensity in C₃ and C₄ crops belonging to Gramineae,the CO₂ exchange and transpiration rates were measured with the attached leaves. Also,water use efficiency, leaf conductance and intercellular CO₂ concentration were calculated based on these measured data. The response of photosynhetic and transpiration rates to light intensity were simultaneously measured using the open system assimilation chamber method provided with a by-pass to dehydrate the water transpired by the leaves. In each crop,light intensity was changed in 9 steps from 110 klx to total darkness. During the measuring,temperature and relative humidity in the chamber were maintained at 30±O.5℃ and 64.3±1.24%,respectively. The results obtained were as follows : 1) Light saturation point,maximum photosynthetic rate and initial slope in the photosynthetic light response curve of C₄ crops were higher compared with those of C₃ crops. 2) The response of the transpiration and water use efficiency to light intensity in both crops saturated at 30 Klx and 10 klx,respectively. The transpiration of C₄ crops was three fourths that of C₃ crops. On the other hand,the water use efficiency of C₄ crops was about twice that of C₃ crops. 3) Leaf conductance and intercellular CO₂ concentration of C₃ crops were larger than those of C₄ crops. 4) There were,in the case of the present experiment,high positive correlations between transpiration and photosynthetic rates in each of the crops. 5) The relations of water use efficiency and intercellular CO₂ concentration with leaf conductance in all crops under high light intensity showed a high negative correlation for water use efficiency and a high positive correlation for intercellular CO₂ concentrations. 6) The higher water use efficiency of C₄ crops was mainly caused by restricting the loss of water vapour from leaves with the smaller Ieaf conductance than those of C₃ crops. 7) Under such small Ieaf conductance,it is considered that the C₄ crops maintain their high photosynthetic rate by means of the high carboxylation efficiency and of the large CO₂ gradient (from the atmosphere to the inside leaves). | |||||
書誌情報 |
鳥取大学農学部砂丘研究所報告 en : Bulletin of the Sand Dune Institute, Tottori University 巻 22, p. 55-66, 発行日 1983-03 |
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出版者 | ||||||
出版者 | 鳥取大学農学部砂丘利用研究施設. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02852845 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00174665 | |||||
権利 | ||||||
権利情報 | (pdfファイル作成は農林水産省農林水産技術会議事務局筑波事務所) | |||||
情報源 | ||||||
関連名称 | 鳥取大学農学部砂丘研究所報告. 1983, 22, 55-66 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.affrc.go.jp/db_search/jasi/RN/270666 | |||||
関連名称 | http://www.affrc.go.jp/db_search/jasi/RN/270666 | |||||
著者版フラグ | ||||||
出版タイプ | VoR |