灯笼红香瓜枯萎病病原菌分离鉴定及药剂防治研究

doi:10.12190/j.issn.2096-1197.2022.03.08

Abstract

Abstract: 【Objective】To identify the pathogen causing Denglonghong muskmelon Fusarium wilt in Wuyuan County,Bayannur City,Inner Mongolia,and investigate the disease response to plant immune inducers and plant-derived fungicide.【Methods】Tissue isolation method was used to isolate the Fusarium wilt pathogen from Denglonghong muskmelon,and Koch′s rule was used to assess its pathogenicity. The in door efficacy of four drugs（plant immune inducers JM1,JM2,JM3,and plant-derived fungicide Osthol）was evaluated using potted plants.【Results】The fungi isolated from muskmelon with wilting symptoms could inoculate muskmelon seedlings and cause typical muskmelon wilt symptoms. The strain was named TG2. According to the colony,spore characteristics,spore morphology and ITS sequence,it was identified as Fusarium oxysporum. JM1,JM2,JM3,and Osthol each demonstrated a control effect on the Fusarium wilt of 45.99%,61.43%,15.13%,and 65.28%,respectively. 【Conclusion】The pathogen that Causes Denglonghong muskmelon Fusarium wilt in Wuyuan County was Fusarium oxysporum. Plant immune inducer JM2,and plant-derived fungicide Osthol had better control effect.

Key words: Denglonghong muskmelon, Fusarium wilt, Fusarium oxysporum, Plant immune inducer, Plant-derived fungicide

CLC Number:

S436.5

BAI Jinjiang, ZHAO Jian, LIU Ying, ZHENG Hongli, ZHAO Mingmin. Isolation and identification of pathogen causing Fusarium wilt in Denglonghong muskmelon and study on plant derived fungicide control[J].Journal of Northern Agriculture, 2022, 50(3): 60-66.

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URL: https://journal30.magtechjournal.com/bfnyxb/EN/10.12190/j.issn.2096-1197.2022.03.08

https://journal30.magtechjournal.com/bfnyxb/EN/Y2022/V50/I3/60

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Isolation and identification of pathogen causing Fusarium wilt in Denglonghong muskmelon and study on plant derived fungicide control

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