Effects of Temperature and Light Intensity on Ascorbic Acid Content in Cotyledons of Japanese Radish

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  • DAN Kazuhiro
    National Research Institute of Vegetables, Ornamental Plants and Tea
  • NAGATA Masayasu
    National Research Institute of Vegetables, Ornamental Plants and Tea
  • YAMASHITA Ichiji
    National Research Institute of Vegetables, Ornamental Plants and Tea

Bibliographic Information

Other Title
  • ダイコン子葉のアスコルビン酸含量に及ぼす温度および光強度の影響
  • ダイコン シヨウ ノ アスコルビンサン ガンリョウ ニ オヨボス オンド オヨ

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Description

The relationship between L-ascorbic acid (AsA) content in cotyledons of Japanese radish and temperature or light intensity during growth was investigated. Japanese radish seedlings were grown in the dark at 15, 20, 25, 30, or 35°C. The maximum rate of hypocotyl elongation occurred at 25°C treatment compared with other temperature treatments. However, lower temperatures led to higher maximum content of AsA in cotyledons on a fresh weight basis. At temperatures below 30°C, AsA content in cotyledons increased rapidly, reaching a maximum 3-5 days after sowing and subsequently declined. Japanese radish seedlings were grown under various light intensity conditions at 25°C. Illumination led to increase of AsA content in cotyledons. A linear relationship was observed between the AsA content and the logarithms of light intensity.

Journal

  • Food Preservation Science

    Food Preservation Science 24 (5), 325-329, 1998

    Japan Association of Food Preservation Scientists

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