Xinjiang Agricultural Sciences ›› 2025, Vol. 62 ›› Issue (5): 1249-1257.DOI: 10.6048/j.issn.1001-4330.2025.05.023

• Plant Protection • Previous Articles     Next Articles

Laboratory screening of tomato resistant varieties and control fungicides against tomato Fusarium solani root rot caused by Fusarium solani

MA Jiaxuan1(), LI Xueping2, LI Xiao3, XU Shiyang2, LI Jianjun2, YANG Chengde1, MENG Huan1, QI Yonghong1()   

  1. 1. College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, China
    2. Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
    3. Gansu Jiantou Ecological Construction Co., Ltd, Lanzhou 730000, China
  • Received:2024-10-13 Online:2025-05-20 Published:2025-07-09
  • Correspondence author: QI Yonghong
  • Supported by:
    Key R & D Program Project of Gansu Academy of Agricultural Sciences(2023GAAS22);National Natural Science Foundation of China(32060037)

番茄茄镰孢根腐病抗性品种鉴定及防治药剂筛选

马佳璇1(), 李雪萍2, 李潇3, 许世洋2, 李建军2, 杨成德1, 孟欢1, 漆永红1()   

  1. 1.甘肃农业大学植物保护学院,兰州 730070
    2.甘肃省农业科学院植物保护研究所,兰州 730070
    3.甘肃建投生态建设集团有限公司,兰州 730000
  • 通讯作者: 漆永红
  • 作者简介:马佳璇(2001-),女,兰州西固人,硕士研究生,研究方向为植物病理学及病害防控,(E-mail) 2092738762@qq.com
  • 基金资助:
    甘肃省农业科学院重点研发计划(2023GAAS22);国家自然科学基金项目(32060037)

Abstract:

【Objective】 Tomato root rot caused by Fusarium solani widely occurs in northwestern China, which has resulted serious negative effects, in view of this, this project aims to provide support for the prevention and control of that by screening excellent resistant varieties and fungicides.【Methods】 Fusarium solani, the dominant pathogen of tomato root rot in northwestern China, was chosen as the target, pot-culture method was used to identify the resistance of 33 tomato varieties, the incidence rate and disease index of them were counted to conduct their resistance grades. The virulence effects of 7 fungicides were measured by mycelium growth rate inhibition method, and their field control effects were determined by root-filling method.【Results】 Yuanminghongyunv and Taiwanfenyunv were resistant varieties, their incidence were the same with 27.77%, and their disease indexes were 9.70 and 13.90, respectively. Besides, Moguiyingtao and Fenguan 1 Jingpinhongmeimu were middle resistant varieties(MR), while the others were with poorer resistance. 7 kinds of fungicides had different inhibitory effects on Fusarium solani, and among them, 12.5% diniconazole WP had the strongest toxicity against Fusarium solani, with inhibition rate reached 79.80%, EC50 was 24.86 μg/mL, and the highest field control effect reached 47.52%. The toxicity of 30% thiazenol copper pentazolol SC and 15% triazolone WP were lower, with EC50 30.93 μg/mL and 38.46 μg/mL, field control effects were 45.89% and 43.95%, respectively.【Conclusion】 Yuanminghongyunv and Taiwanfenyunv were resistant varieties, and diniconazole has excellent control effect for tomato Fusarium solani root rot.

Key words: tomato root rot; Fusarium solani; resistant varieties; fungicides screening

摘要:

【目的】针对我国西北地区广泛发生、为害严重番茄茄镰孢(Fusarium solani)根腐病,筛选优良的番茄抗病品种及药剂,为其防治提供理论依据与参考。【方法】以茄镰孢为靶标菌,采用盆栽法鉴定33个番茄品种抗性,统计番茄根腐病发病率、病情指数等指标,并进行抗性分级;菌丝生长速率法测定7种药剂毒力效果,灌根法测定药剂田间防效。【结果】元明红玉女和台湾粉玉女为抗性(R)品种,发病率均为27.77%,病情指数分别为9.70、13.90,魔鬼樱桃、粉冠1号、精品红美女为中抗(MR),而其他品种抗性较差。7种药剂对茄镰孢具不同程度抑制效果,12.5%烯唑醇可湿性粉剂对茄镰孢抑菌率可达79.80%,EC50为 24.86 μg/mL,对番茄镰孢根腐病田间防效达47.52%;30%噻森铜·戊唑醇悬浮剂、15%三唑酮可湿性粉剂EC50分别为30.93、38.46 μg/mL,田间防效为45.89%、43.95%。【结论】元明红玉女和台湾粉玉女为番茄茄镰孢根腐病抗性品种;烯唑醇对番茄茄镰孢有良好防效。

关键词: 番茄根腐病, 茄镰孢, 抗性品种, 药剂筛选

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