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广西桑树赤锈病生理小种及品种资源抗性鉴定
作者: 郭堂勋  莫贱友  黄穗萍  李焜华  李其利  
单位: (广西农业科学院植物保护研究所  南宁 530007)  
关键词: 桑树赤锈病  生理小种  品种资源  抗性鉴定  广西  
分类号:
出版年,卷(期):页码:2012 ,43 ( 6 ): 页码:780-783
摘要:

【Objective】The present study was conducted to identify the physiological races, pathogenicity and variety resources resistance so as to provide a scientific basis for mulberry breeding. 【Method】The resistance of four differential varieties and seven local varieties of mulberry were tested through artificial inoculation with the mulberry red rust isolates gathered from different regions in Guangxi. 【Result】The isolates of mulberry red rust from different regions could infect all the tested mulberry varieties, and there existed difference in pathogenicity of different mulberry red rust isolates to the same mulberry varieties or the same mulberry red rust isolate to different mulberry varieties. The resistance of different mulberry varieties against red rust was significantly different from each other, out of which, Lunjiao 40 was the most resistant. 【Conclusion】The isolates of mulberry red rust from different regions in Guangxi were identified as the same “wetness type” physiological race. The mulberry variety Lunjiao 40 was found to be moderately resistant to mulberry red rust and could be recommended as a moderately resistant variety in production.

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