閉鎖型苗生産システムにおけるサツマイモ増殖体生産速度と消費電力量に及ぼす栽植密度の影響 Sweetpotato Propagule Production Rate and Electric Energy Consumption in a Closed Transplant Production System as Affected by Planting Density

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Multiplication ratio (number of average of harvestable propagules per stock plant, M) and electric energy consumption per propagule (E<SUB>p</SUB>) at four levels of planting density (59, 118, 236 and 473 m<SUP>-2</SUP>) were investigated for sweetpotato (<I>Ipomoea batatas</I> (L.) Lam.) vegetative propagation in a closed transplant production system. After n multiplication cycles, total number of harvestable propagules (N<SUB>n</SUB>) and electric energy consumption per propagule (E<SUB>p, n</SUB>) in the system were estimated by using mathematical models. Single nodal cuttings were used as propagules and grown to 14 days under photosynthetic photon flux of 140, 200 and 320μ mol·m<SUP>-2</SUP>·s<SUP>-1</SUP> during 1 to 5, 6 to 10 and 11 to 14 days after planting, respectively. Other environmental conditions included photoperiod of 16 h·d-<SUP>1</SUP>, air temperature of 29°C, and CO<SUB>2</SUB> concentration of 920μmol·mo1<SUP>-1</SUP>. At the planting densities of 59, 118, 236 and 473 m<SUP>-2</SUP>, M were 5.9, 6.4, 3.8 and 2.3, respectively, and E<SUB>p, 1</SUB> were 0.41, 0.19, 0.16 and 0.13 kWh (electricity cost : 6.2, 2.9, 2.4 and 2.0 Yen), respectively. Results suggest that production can be optimized and electricity cost can be reduced by manipulating planting densities.

収録刊行物

  • 植物工場学会誌

    植物工場学会誌 14(1), 10-17, 2002-03-01

    JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS

参考文献:  29件中 1-29件 を表示

被引用文献:  6件中 1-6件 を表示

各種コード

  • NII論文ID(NAID)
    10012339029
  • NII書誌ID(NCID)
    AN10451761
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09186638
  • NDL 記事登録ID
    6087044
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物)
  • NDL 請求記号
    Z18-3397
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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