Effect of Light Quality on Growth and Vegetable Quality in Leaf Lettuce, Spinach and Komatsuna

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著者

    • Kon Noya [他] KON Noya
    • Department of Biological and Environmental Engineering, Graduate School of Agricultural and Life Sciences, The University of Tokyo
    • FUJIWARA Kazuhiro
    • Department of Biological and Environmental Engineering, Graduate School of Agricultural and Life Sciences, The University of Tokyo
    • KURATA Kenji
    • Department of Biological and Environmental Engineering, Graduate School of Agricultural and Life Sciences, The University of Tokyo

抄録

The effects of light quality on biomass and internal quality of leaf lettuce, spinach and komatsuna were examined. The plants were grown hydroponically in an environmentally controlled room with a 12-h light period and under a light/dark temperature of 20±1°C/18±1°C and a photosynthetic photon flux density (PPFD) of 300 μmol m<sup>-2</sup> s<sup>-1</sup> under four light quality treatments, i.e., red light from red fluorescent lamps (R) or blue light from blue fluorescent lamps (B) or a mixture of R and B (RB) or white light from white fluorescent lamps (W). The irradiation of R compared with W increased shoot dry weight in komatsuna and decreased the nitrate content in spinach. Irradiation of B or RB compared with W increased the L-ascorbic acid content in leaf lettuce and komatsuna and decreased the nitrate content in leaf lettuce. Irradiation of B was not suitable for the spinach cultivation due to an extremely decreased shoot dry weight although the carotenoid content was slightly increased. Our data show that controlling light quality is useful to achieve higher productivity or higher nutritional quality of the commercial crops even under limited light intensity in controlled-environment agricultural facilities although the effective light quality treatment differs depending on the plant species.

収録刊行物

  • Environment control in biology  

    Environment control in biology 45(3), 189-198, 2007-09-30 

    Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists

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各種コード

  • NII論文ID(NAID)
    10021229005
  • NII書誌ID(NCID)
    AA12029220
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    1880554X
  • NDL 記事登録ID
    8965042
  • NDL 雑誌分類
    ZR1(科学技術--生物学)
  • NDL 請求記号
    Z78-A361
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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