Effects of Autumn Treatment with a Mixture of Gibberellin and Prohydrojasmon Spray and Postharvest Blue LED Irradiation on Fruit Decay in Satsuma Mandarin Fruit

Yamaga Ittetsu, Furuya Masashi

doi:10.3136/nskkk.64.16

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Other Title

プロヒドロジャスモン加用ジベレリンの秋季散布と収穫後青色LED光照射がウンシュウミカンの腐敗に及ぼす影響
プロヒドロジャスモンカヨウジベレリンノシュウキサンプトシュウカクゴアオイロ LED ヒカリショウシャガウンシュウミカンノフハイニオヨボスエイキョウ

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<p>We investigated the effects of autumn treatment with a mixture of gibberellin and prohydrojasmon (GP; 3.3:25ppm) spray and postharvest blue light-emitting diode (LED) irradiation on storage diseases and chilling injury in satsuma mandarin fruits. Trees were treated with GP three months before harvest. Harvested fruits were irradiated with blue LEDs at a maximum emission wavelength of 465nm and photon flux of 10μmol·m^-2·s^-1 for 92 days at 8°C. The blue LED irradiation during storage significantly reduced storage diseases (blue mold, green mold, stem end rot, and black rot), chilling injury, and total decay rate from 63 until 92 days of storage. GP treatment alone did not inhibit the total fruit decay rate. Fruits treated with GP and postharvest blue LED irradiation had a higher titratable acid content than that in non-treated fruits after storage. In contrast, these treatments did not affect the sugar content of fruit. These results indicate that blue LED irradiation in actual storage environments was able to reduce the decay of mandarin fruit, with or without GP treatment.</p>

Journal

Nippon Shokuhin Kagaku Kogaku Kaishi

Nippon Shokuhin Kagaku Kogaku Kaishi 64 (1), 16-22, 2017

Japanese Society for Food Science and Technology

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