烘烤前后烟草赤星病病斑扩展情况的研究  

Tobacco Brown Spot of Disease Spotin Expansion between Before and After Baking

作　　者：胡吉凤[1] 曾琛[1] 任军[1] 向红琼 姜于兰[1] 

机构地区：[1]贵州大学农学院,贵阳550025 [2]贵州省山地环境气候研究所,贵阳550002

出　　处：《湖北农业科学》2013年第19期4665-4666,共2页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(41040039);中国烟草总公司贵州省公司科技计划项目(201022;200916)

摘　　要：2011年对贵州省开阳县龙岗镇和道真县上坝乡感染烟草赤星病的烟叶进行采集,烘烤前在室内标记烤烟的品种,测量病斑的大小,烘烤后测量烘斑的大小,并对烘烤前后烟草赤星病[Alternaria alternate(Fr)Keissler]病斑进行比对。结果表明,感染烟草赤星病的烟叶经烘烤后病斑的大小有不同程度扩展,同时不同品种间病斑扩展程度也存在差异。Infection of tobacco brown spot leaves are collected in Long-gang town,Kai-yang county and Shang-bam town,Dao-zhen county in Guizhou province in 2011.Before baking,flue-cured tobacco varieties were marked and lesion size was measured in indoor; after baking,spot disease size was measured and compared.Results showed that the lesion size of infection of tobacco brown spot extended with different degrees of extension,and different varieties had differences of lesion expansion.

关 键 词：烟草赤星病[Alternaria ALTERNATE (Fr)Keissler] 病斑大小 烘烤 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]