光フェントン反応で生成するＯＨラジカルによるイチゴうどんこ病の防除効果

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  • Effects of hydroxyl radicals generated by photo-Fenton reaction on powdery mildew of strawberries.
  • ヒカリ フェントン ハンノウ デ セイセイスル OH ラジカル ニ ヨル イチゴ ウドンコビョウ ノ ボウジョ コウカ

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説明

The effects of hydroxyl radicals (OH radicals) generated in a solution of hydrogen peroxide, oxalic acid and iron (III) under natural sunlight (“photo-Fenton reaction”) was tested against strawberry powdery mildew [Sphaerotheca aphanis (Wallroth) Braun var. aphanis]. Applications of the OH-radical-generating solution to whole plants before inoculation with a conidial suspension protected plants against the disease. The solution also had a suppressive effect for plants already diseased. Conidial germination was suppressed within 20 min of exposure of the solution in sunlight. These results suggested that OH radicals generated by the photo-Fenton reaction ultimately protected against new disease and suppressed further disease development.<br>

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