This study investigated the antifungal effect of chlorine dioxide (ClO₂) dipping on Botrytis cinerea, the causal agent of gray mold, on cut rose flowers (Rosa hybrida L.). In vitro, the spore germination of gray mold was inhibited 100% by instant dipping with ClO₂ solution (5 to 10 μL·L⁻¹). In particular, ClO₂ at 5 μL·L⁻¹ was found to be ideal for hindering spore activity without causing any damage to the petals. This ClO₂ antifungal effect on cut flowers was investigated in a white cultivar ‘Beast’ with different treatments: dipping (one second), spraying (4.8 mL), or gassing (two hours) with 5 μL·L⁻¹ ClO₂. Six days after ClO₂ treatment, the incidence of gray mold in the artificially-inoculated flowers was 2.5% (dipping), 9.4% (spraying), or 8.4% (gassing), respectively, which were all significantly lower than the control incidence of 17.6%. Especially, ClO₂ dipping reduced the incidence of gray mold by up to 26.1% compared to the control in five other rose cultivars (‘Antique Curl’, ‘Green Beauty’, ‘Feel Lip’, ‘Pink Heart’, and ‘Venus Berry’). No petal discoloration was detected, and petal color values (chroma or hue) were maintained regardless of ClO₂ dipping. This result suggests that immediate ClO₂ dipping is applicable to inhibit gray mold on cut rose flowers at a level of 5 μL·L⁻¹ just before postharvest storage.

这项研究调查了二氧化氯（ClO ₂）对切​​花月季花（Rosa hybrida L.）灰霉病的病原体灰葡萄孢的抗真菌作用。在体外，通过立即浸入ClO ₂溶液（5至10μL·L ^-1）可100％抑制灰霉病的孢子萌发。特别地，发现5μL·L ^-1的ClO ₂对于阻止孢子活性而不对花瓣造成任何损害是理想的。在白色品种“野兽”中对ClO _2的抗真菌作用进行了研究，采用了不同的处理：浸入（一秒钟），喷雾（4.8 mL）或用5μL·L充气（两小时）^-1 ClO ₂。ClO ₂处理后六天，人工接种花中发霉的发生率分别为2.5％（浸洗），9.4％（喷洒）或8.4％（放气），均显着低于对照组的发病率。 17.6％。特别是，ClO ₂浸渍与其他五个玫瑰品种（“ Antique Curl”，“ Green Beauty”，“ Feel Lip”，“ Pink Heart”和“ Venus Berry”）相比，降低了灰色霉菌的发生率，比对照组降低了26.1％。 '）。没有检测到花瓣变色，并且与ClO ₂浸渍无关，保持了花瓣颜色值（色度或色相）。该结果表明，立即用ClO ₂浸渍以5μL·L的水平抑制切玫瑰花上的灰色霉菌^-1在收获后储存之前。