摘要
为弄清降雨量变化对烟草生长及病害发生的影响,于2009-2011年对该烟区烟草病害进行了调查。结果表明:兴义市烟草主产区共发生病害22种,其中,主要病害有烟草普通花叶病、烟草黄瓜花叶病、烟草赤星病和烟草黑胫病;各年份间随着降雨量不同,烟草病害发生程度与种类亦有所变化,降雨量偏少时部分病害发病较重,其中,烟草普通花叶病和烟草黑胫病病情指数均达5.5以上,发病烟株多被2种以上病害复合侵染,4种主要病害复合侵染尤为明显。
In order to know the influence of the change of rainfall on tobacco growth and the occurrence of tobacco disease, the tobacco disease in Xingyi City had been investigated from 2009 to 2011. The results showed that there were 22 kinds of tobacco diseases happened in Xingyi, of which the main diseases were tobacco mosaic, cucumber mosaic, brown spot and tobacco black shank. The occurrence degree and varieties of tobacco disease changed each year with different rainfall. When the rainfall was lower, some kind of disease was more serious. Among them the disease index of tobacco mosaic and black shank was above 5.5 and these diseased plantes were generally mixed infected by more than two pathogens and four kinds of main mixed infection were extremely significant.
出处
《贵州农业科学》
CAS
北大核心
2012年第6期93-95,共3页
Guizhou Agricultural Sciences
基金
国家自然科学基金项目"山地气候对烟草赤星病影响及机理研究"(41040039)
中国烟草总公司贵州省公司科技计划项目"贵州省烟草有害生物调查研究"(201022)
"烟草植保信息服务系统的构建及病虫防治技术优化研究"(200916)
关键词
烟草病害
干旱
病株率
病情指数
tobacco diseases
drought
percentage of the diseased plants
disease index
