白绢病菌在花生品种间致病力分化和广谱抗性品种筛选  

Pathogenic variation of Athelia rolfsii strains among peanut varieties and broad-spectrum resistant variet-ies screening

作　　者：于东洋 宋万朵 康彦平[1] 王前前 雷永[1] 王志慧[1] 陈玉宁[1] 淮东欣[1] 王欣 晏立英[1] 廖伯寿[1] YU Dong-yang;SONG Wan-duo;KANG Yan-ping;WANG Qian-qian;LEI Yong;WANG Zhi-hui;CHEN Yu-ning;HUAI Dong-xin;WANG Xin;YAN Li-ying;LIAO Bo-shou(Oil Crops Research Institute,Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Im-Abstract provement of Oil Crops,Ministry of Agricultural and Rural Affairs,Wuhan 430062,China)

机构地区：[1]中国农业科学院油料作物研究所/油料作物生物学与遗传育种重点实验室,湖北武汉430062

出　　处：《中国油料作物学报》2023年第6期1258-1265,共8页Chinese Journal of Oil Crop Sciences

基　　金：中央级科研院所基本科研业务费专项(2021-2060302-061-019);国家农业产业技术体系(CARS-13);中国农业科学院科技创新工程(CAAS-ASTIP-2021-OCRI)。

摘　　要：为探讨白绢病菌菌株在花生品种间的致病力差异,本研究将强、中和弱致病力菌株田间接种不同抗病性花生品种后考察发病严重度。结果表明,白绢病菌株接种后14 d为最佳调查时间;强致病力菌株ZY2、SQ1和弱致病力菌株GP3-1在所测试的10个花生品种间病情指数差异不显著,而中等致病力菌株(HA、H1-3和BL1-1)在品种间病情指数差异显著。弱致病力菌株GP3-1对各品种的致病力较弱;强致病力菌株能导致供试品种抗性的丧失;中等致病力菌株在抗感品种间的致病力存在分化。本实验筛选出1份对中等致病力菌株存在广谱抗性的花生品种。In order to understand pathogenicity of Athelia rolfsii to different peanut varieties,six strains with high,moderate and weak virulence were inoculated on resistant and susceptible varieties in the field,occurrence of disease was investigated every week after inoculation.The results showed that the optimal time for investigation was 14 days after inoculation.There was no significant difference in disease index among cultivars inoculated by highly virulent strains ZY2 and SQ1,and weakly virulent strain GP3-1,respectively,but there was significant difference of those inoculated by moderately virulent strains(HA,H1-3 and BL1-1).The disease indices of varieties by strain GP3-1 was low;and was high by strains ZY2 and SQ1.All tested peanut varieties were susceptible to the highly vir-ulent strains ZY2 and SQ1.The disease indices between resistant and susceptible varieties showed significant differ-ence among moderately virulent strains.One peanut variety with broad-spectrum resistance to multiple moderately virulent strains was identified.

关 键 词：花生 白绢病菌 田间接种 致病力分化 广谱抗性 

分 类 号：S435.652[农业科学—农业昆虫与害虫防治]