草原与草坪2025，Vol.45Issue(2)：43-51,9.DOI:10.13817/j.cnki.cyycp.2025.02.005
10个燕麦品种对叶斑病抗性的鉴定与评价
Identification and evaluation of different Avena sativa varieties resistance to leaf spot
摘要
Abstract
[Objective]In order to explore the physiological response and comprehensive disease resistance of dif-ferent oat to leaf spot.[Method]The physiological indexes related to disease resistance of 10 A.sativa varieties were determined and the disease resistance of each variety was comprehensively evaluated.[Result]The results showed that the disease incidence and disease index of Muwang,Aiwo,Yanwang and Baiyan 7 after inoculation with Drechslera avenae were lower than 19.05%and 8.93,respectively,and disease index of the four varieties were rela-tively better,while the disease incidence and disease index of sweet oat,Qinghai 444,Longyan 3,Dingyin 1,Dingyan 2 and Mulesi were higher than 21.43%and 10.71,respectively,and the disease resistance was relatively inferiorer.The descent range of chlorophyll(Chl)and soluble protein(SP)content in resistance varieties were comparatively less;The rising range of relative electrical conductivity(REC)and malondialdehyde(MDA)content in resistance va-rieties was comparatively less;Moreover,soluble sugar(SS)content,peroxidase(POD),superoxide dismutase(SOD),phenylalanine ammonia lyase(PAL),polyphenol oxidase(PPO)activity increased significantly in resistant varieties(P<0.05),conversely,the results in inferiorer disease resistance varieties was opposite.[Conclusion]The comprehensive evaluation D value obtained by the membership function method can divide the 10 oat varieties into high resistance(Muwang,Aiwo and Yanwang),medium resistance(Baiyan 7),moderately susceptible(sweet oat,Qinghai 444,Longyan 3 and Dingyin 1)and susceptible(Dingyan 2 and Mulesi).关键词
燕麦/叶斑病/病情指数/防御酶/抗氧化酶/综合评价Key words
oat/leaf spot/disease index/defensive enzyme/antioxidant exzyme/comprehensive evaluation分类
农业科技引用本文复制引用
张建贵,赵桂琴,柴继宽,宫文龙,张宁,冉婵宇,杜文盼,杨莉,朱青青..10个燕麦品种对叶斑病抗性的鉴定与评价[J].草原与草坪,2025,45(2):43-51,9.基金项目
国家现代农业产业技术体系(CARS-07-C) （CARS-07-C）
甘肃省优秀研究生"创新之星"项目(2022CXZXB-003) （2022CXZXB-003）
甘肃省优秀博士生项目(22JR5RA841) （22JR5RA841）
