Studies on the coloring of Satsuma mandarin (<i>Citrus unshiu</i> MARC.)

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  • 温州ミカンの着色促進に関する研究 (第2報)
  • プラスチックフィルムを利用したエチレンによる着色促進の簡易法
  • プラスチック フィルム オ リヨウ シタ エチレン ニ ヨル チャクショク ソクシン ノ カンイホウ
  • Studies on the coloring of Satsuma mandarin (Citrus unshiu MARC.)
  • II. Practical convenient method of coloring or degreening with ethylene by using a plastic film

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Abstract

1. The fruit was sealed in polyester (thickness: 0.012mm)-polyethylene (0.05mm) laminated film and water as shown in Figs. 1-3, and treated with ethylene for 15 hours. After exposing the fruit to air the chlorophyll disappeared rapidly and the coloring was greatly hastened.<br>2. Polyvinyl chloride film for agricultural use (0.2mm) permitted loss of ethylene to some extent, but the effect on coloring was not detrimental.<br>3. The suitable concentration of ethylene for the treatment was 500-1, 000ppm for the volume of film enclosing the fruit.<br>4. The polyvinyl chloride film could be used effectively for coloring 2.4 to 9.6 tons of fruit with ethylene.

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