河西走廊玉米普通锈病生物学特性测定  

Determination of Biological Characteristics of Common Rust in Maize Corridor

作　　者：雷玉明 郑天翔[1,3] 邢会琴 LEI Yuming;ZHENG Tianxiang;XING Huiqin(College of Agriculture and Ecological Engineering,Hexi University,Zhangye Gansu 734000,China;Key Laboratory of Hexi Corridor Resourses Utilization of Gansu,Zhangye Gansu 734000,China;Qilian Mountains Reseach Center of Integrated Pest Mangement in Gansu Province,Hexi University,Zhangye Gansu 734000,China)

机构地区：[1]河西学院农业与生态工程学院,甘肃张掖734000 [2]甘肃河西走廊特色资源利用重点实验室,甘肃张掖734000 [3]河西学院祁连山有害生物综合治理研究中心,甘肃张掖734000

出　　处：《耕作与栽培》2020年第6期15-17,共3页Tillage and Cultivation

基　　金：甘肃省农业科技创新项目(GNCX-2013-10)。

摘　　要：为明确河西走廊玉米普通锈病发生规律,进行了玉米普通锈菌的测定,明确了河西走廊制种玉米田锈菌夏孢子萌发的温度范围是5~35℃,适宜温度范围20~30℃,最适温度是25~28℃;最适相对湿度100%;萌发pH值为4~11,最适萌发pH值为7~8;光照对孢子萌发没有差异性;病菌能利用多种碳源,最适碳源葡萄糖、果糖。最适氮源为硫酸铵、氯化铵、硝酸钾,而甘氨酸、酪氨酸等氮源对夏孢子萌发有抑制作用。Through the determination of common rust bacteria in corn.The rssuts showed that it was clear that the temperature range of germination of rust spores from corn cultivars in Hexi Corridor was 5—35℃,suitable temperature range was 20—30℃,and the optimum temperature was 25—28℃.The optimum relative humidity is 100%,the germination pH was 4—11,and the optimum germination pH was 7—8,the light had no difference in spore germination,the pathogen could utilize various carbon sources,and the optimum carbon source was glucose and fructose.The optimum nitrogen source was ammonium sulfate,ammonium chloride,potassium nitrate,glycine,tyrosine and other nitrogen sources to inhibit the germination of urediospores.

关 键 词：玉米 普通锈菌 河西走廊 

分 类 号：S513[农业科学—作物学]