閉鎖型苗生産システムのCO_2および水利用効率に及ぼすトマト実生個体群の葉面積指数および換気回数の影響   :   CO_2 and Water Utilization Efficiencies of a Closed Transplant Production System as Affected by Leaf Area Index of Tomato Seedling Populations and the Number of Air Exchanges 

作成者 横井, 真悟, 古在, 豊樹, 長谷川, 智行, 全, 昶厚, 久保田, 智惠利
作成者 (ヨミ) ヨコイ, シンゴ, コザイ, トヨキ, ハセガワ, トモユキ
作成者の別表記 Shingo, Yokoi, Toyoki, Kozai, Tomoyuki, Hasegawa, Chanhoo, Chun, 久保田, 智恵利, Chieri, Kubota
キーワード等 CO_2 balance, CO_2 enrichment, evapotranspiration rate, fluorescent lamps, net photosynthetic rate, water balance
日本十進分類法 (NDC) 615.4
内容 The closed transplant production system is defined as a transplant production system covered with opaque and insulated walls, where the energy and mass transfer between inside and outside the system is controlled and/or restricted, and using artificial lights. CO_2 utilization efficiency of a closed transplant production system, CUE, was defined as the ratio of the amount of CO_2 fixed by plants to that supplied into the system. Water utilization efficiency of the system, WUE, was defined in the same way as CUE. Tomato seeds were sown on plug trays and grown for 20 days in the system. CUE and WUE increased with increasing leaf area index (LAI) and decreasing the number of air exchanges. Maximum CUE (0.93) and WUE (0.95) during thepresent study were obtained at maximal LAI of 1.2 and minimal number of air exchanges of 0.02 h^<-1>. Results suggest that a high LAI and a low number of air exchanges provide high CUE and WUE values.
公開者 日本植物工場学会
コンテンツの種類 雑誌掲載論文 Journal Article
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 1880-2028
掲載誌情報 植物環境工学 Vol.17 no.4 page.182-191 (2005)
情報源 Journal of Society of High Technology in Agriculture, J.SHITA
言語 日本語
著者版フラグ publisher

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evapotranspiration rate
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net photosynthetic rate
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