2021一2023年宁夏审定玉米品种抗病性分析

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中图分类号：S435.131；S513 文献标识码：A 文章编号：1002-204X（2025）07-0010-06

doi：10.3969/j.issn.1002-204x.2025.07.002

An Analysis of Disease Resistance of Corn Varieties Approved in Ningxia from 2021 to 2023

Chen Mohuan’， Zhao Baoshoul， Zhou Xinglong²，Sheng Hai 3 ， Pu Zhengfei'，Ji Yuxiang²*，Yuan Jing4

（1.NingxiaSeedWorkstation，Yinchuan，Ningxia75Ooo1;2.NingxiaAgriculturalTechnologyExtensionStation，

Yinchuan，Ningxia75Ooo1; 3.NingxiaAgriculturalExplorationand Design Institute，Yinchuan，Ningxia; 4.Ningxia Department of Agriculture and Rural Affairs， Yinchuan，Ningxia ）

AbstractTo explore the diseaseresistance level ofcorn varieties in Ningxia，ananalysis and studyonthe disease resistance of 88 new corn varieties approved in Ningxia from 2O21to 2O23 was conducted.The results showedthat the proportions of the88 approved new corn varieties with resistance（HR，MR AndR）to common diseases-stalk rot，ear rot，northern leaf blight，head smut，common rust，and southern leaf blight were 82.95 % ，48.86 % ，14.77%，23.86 % ， （204号 38.64% and 6.82% respectively，while the proportions susceptible （HS and S） were 17.05%，37.5%， 85.23% ，75%， （204号 50% and 1.14% respectively. There were 64 varieties that are resistant to two or more diseases simultaneously， accounting for 72.73% of the approved varieties，mainly showing resistance to both stalk rot and ear rot.There were 77 varieties susceptible to two or more diseases，accounting for 87.5% of the approved varieties，mainly showing susceptibilityto both northern leaf blightand head smut.Overall，the88 new maize varieties approved in Ningxia from 2021 to 2023 hadcertain resistance to stalk rot and earrotbut poor resistance to northern leaf blight and common rust. Key words New varieties of corn; Common diseases; Disease resistance

随着种植业结构调整、栽培方式、全球性气候变暖等因素影响，玉米病害呈多发趋势，成为制约玉米生产的关键因素之一。（剩余5205字）