Effect of Curtain Treatment with Polyethylene Non‐woven Fabric White Reflective Sheet to Improve Coloration of ‘Saijo’ Persimmon

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  • 不織布ポリエチレン製白色反射シートのカーテン処理によるカキ ‘西条’ の着色促進
  • フショクフ ポリエチレンセイ ハクショク ハンシャ シート ノ カーテン ショリ ニ ヨル カキ'サイジョウ'ノ チャクショク ソクシン

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Abstract

<p>Polyethylene non‐woven fabric white reflective sheet treatments were applied to ‘Saijo’ persimmon to improve the coloration of fruits. Persimmon trees with modified leader type training were used in this study. The color chart (CC) value of curtain treatment was significantly increased compared with the control, and no significant difference was observed between curtain and mulch treatments. The sugar contents (°Brix) of fruit among the curtain treatment, mulch treatment, and control were not significantly different. No damage of fruits or twigs was observed in the curtain treatment, and no negative effect was observed in the shelf life of harvested fruits. White reflective sheet use with on-ground mulching has the disadvantage of the sheet becoming dirty during cultivation. On the other hand, curtain treatment using a white reflective sheet can be expected to prolong the useful life of the sheet as well as promote cost reduction. In this study, curtain treatment with white reflective sheet treatments improved the fruit skin color of persimmon.</p>

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