小麦根腐病药剂筛选和品种抗性鉴定
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S121.4+7

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河北省现代农业产业技术体系创新团队项目(HBCT2018010204)


Screening of Fungicides and Resistant Varieties against Wheat Root Rot
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    摘要:

    近年来小麦根腐病的发生逐渐加重,为减轻小麦根腐病在实际生产中带来的损失,本研究通过室内毒力测定,比较8种杀菌剂对小麦根腐病病原菌麦根腐平脐蠕孢的抑制作用。室内毒力测定结果表明,氟环唑、苯醚甲环唑·嘧菌酯和腈菌唑对小麦根腐病的抑制作用较好,其EC50分别为0.005、0.061、0.462 mg/L,EC90分别为0.349、8.520、7.782 mg/L。通过盆栽试验对河北省56份小麦品种进行抗性鉴定,其中科农2009为抗病品种;济麦22、山农20、观35、石家庄8号和周麦22为中抗品种;其他为感病品种和高感品种。小麦根腐病高效杀菌剂和抗性品种的筛选,为小麦根腐病的防治奠定了基础。

    Abstract:

    In recent years, the occurrence of wheat root rot has been increasing gradually. In order to reduce the losses caused by wheat root rot in production, this study compared the inhibitory effects of 8 fungicides for Bipolaris sorokiniana causing wheat root rot by laboratory toxicity test. The results of indoor toxicity test showed that epoxiconazole, difenoconazoleand·azoxystrobin and myclobutanil had a large inhibitory effect on wheat root rot, the EC50were 0.005, 0.061, 0.462 mg/L, respectively, and EC90were 0.349, 8.520, 7.782 mg/L, respectively. Resistance of the 56 wheat varieties from Hebei Province was identified by pot experiment. Kenong 2009 was the resistant variety,Jimai 22, Shannong 20, Guan 35, Shijiazhuang 8 and Zhoumai 22 were medium resistant varieties, the others were susceptible varieties and high susceptible varieties. The screening of effective fungicides and resistant varieties of wheat root rot laid a foundation for the prevention and control of wheat root rot disease.

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孙华,王茹茹,史聪聪,张立荣,刘大群,杨文香.小麦根腐病药剂筛选和品种抗性鉴定[J].东北农业科学,2023,48(3):58-61,82.

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  • 收稿日期:2020-04-08
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  • 在线发布日期: 2024-10-24
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