安徽水稻稻曲病菌寄生适合度研究  

Parasitic Fitness of Rice Ustilaginoidea virens in Anhui Province

作　　者：吴向辉[1] 张学成 任学祥[3] 谷春艳[3] 胡飞[3] 王学峰[3] 苏贤岩[3] 

机构地区：[1]安徽省植物保护总站,安徽合肥230001 [2]安徽寿县农业科学研究所,安徽寿县232200 [3]安徽省农业科学院植物保护与农产品质量安全研究所,安徽合肥230031

出　　处：《安徽农业科学》2016年第29期134-138,共5页Journal of Anhui Agricultural Sciences

基　　金：安徽省农业科技创新基金项目(14B1148);安徽省人才发展专项(13C1109);安徽省科技重大专项(15CZZ03132)

摘　　要：[目的]明确安徽省稻曲病菌菌株与品种的寄生适合度。[方法]从安徽15个水稻种植县(市)采集、分离并随机抽选24个菌株,采用人工注射接种诱病的方法,测定其在4个水稻品种上的致病力。[结果]不同菌株接种不同水稻品种后,诱发的稻曲病病穗率、平均穗病粒率和最高穗病粒率差异显著,菌株与品种互作特性明显。[结论]试验结果为稻曲病的预测预报和防治提供了参考。[Objective] To research the parasitic fitness of rice Ustilaginoidea virens in Anhui Province.[Method] A total of 24 strains were ran-domly isolated from 15 rice planting counties （cities） in Anhui Province.The method of artificial inoculation injection induced disease was used to determine the pathogenicity of U.virens in four rice varieties.[Result] After different strains were inoculated to different rice varieties, there were significant differences in diseased ears rate of U.virens, the average rate of diseased grains, and the maximum rate of diseased grains. Strain and variety had significant interaction.[ Conclusion] The research result provides references for the prevention and control of U.virens.

关 键 词：水稻 稻曲病 致病力 寄生适合度 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]