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IDENTIFICATION AND BIOLOGICAL CHARACTERS OF WATERMELON WILT DISEASE

Bo Liu

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Abstract

The pathogenic fungus was isolated from the field samples of watermelon wilt disease in Yongtai. According to studies of the symptoms, morphology, biological characters and pathogenicity, the pathogen was identified as Fusarium oxysporum f. sp. Niveum. The optimal growth temperature of F. oxysporum was 25±1℃, optimal pH was 6-7. When inoculated with F. oxysporum, seedlings of watermelon, melon and cucumber were infected seriously, mildly and slightly, respectively.

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What this paper is about

The pathogenic fungus was isolated from the field samples of watermelon wilt disease in Yongtai. According to studies of the symptoms, morphology, biological characters and pathogenicity, the pathogen was identified as Fusarium oxysporum f. sp. Niveum. The optimal growth temperature of F. oxysporum was 25±1℃, optimal pH was 6-7. When inoculated with F. oxysporum, seedlings of watermelon, melon and cucumber were infected seriously, mildly and slightly, respectively.

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Available abstract

The pathogenic fungus was isolated from the field samples of watermelon wilt disease in Yongtai. According to studies of the symptoms, morphology, biological characters and pathogenicity, the pathogen was identified as Fusarium oxysporum f. sp. Niveum. The optimal growth temperature of F. oxysporum was 25±1℃, optimal pH was 6-7. When inoculated with F. oxysporum, seedlings of watermelon, melon and cucumber were infected seriously, mildly and slightly, respectively.

Key concepts: Fusarium oxysporum, Melon, Fusarium wilt, Biology, Wilt disease, Inoculation, Pathogenicity, Fungus

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