昌宁县降雨量对烟草生长及病害发生的影响  

Effects of Rainfall on Tobacco Growth and Disease Occurrence in Changning County

作　　者：秦蔚[1] 段星屹 彭坚强[1] 杨昊霖[1] 

机构地区：[1]云南省烟草公司保山市公司,云南保山678000

出　　处：《安徽农业科学》2016年第6期152-153,196,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]明确降雨量变化对烟草生长及病害发生的影响。[方法]于2010~2014年调查昌宁烟区烟草病害,并研究降雨量变化对烟草生长及病害发生的影响。[结果]昌宁烟草主产区共发生病害13种,其中,主要病害有烟草黑胫病、烟草青枯病、烟草根黑腐病、烟草白粉病和烟草赤星病;各年份间随着降雨量不同,烟草病害发生程度亦有所变化,旺长期降雨量偏少时部分病害发病较轻,烟草黑胫病和烟草青枯病病情指数均达20,发病烟株多被2种或2种以上主要病害侵染。2012年烟草根结线虫病被首次发现,应引起重视。[结论]试验结果为昌宁烟区烤烟的种植、病害预防及防治提供了参考。[Objective] To research the effects of rainfall change on tobacco growth and disease occurrence in Changning County. [Method]Tobacco diseases in Changning County were investigated in 2010- 2014. Effects of rainfall change on tobacco growth and disease occurrence were researched. [Result] A total of 13 kinds of diseases were found in Changning County,which were mainly tobacco black shank,bacterial wilt,black root rot,tobacco brown spot and so on. As the rainfall changed in different years,tobacco occurrence degree also varied. When rainfall was relatively small in vigorous growing stage,disease occurred slightly. Disease indexes of tobacco black shank and bacterial wilt both reached20. The diseased plants were infected mostly by more than two types of major diseases. Besides,we should pay attention to the root knot nematode of tobacco,which was firstly found in the year 2012. [Conclusion] This research provides references for the planting,disease control and prevention of flue-cured tobacco in Changning County.

关 键 词：降雨量 烟草病害 病株率 病情指数 

分 类 号：S162.5[农业科学—农业气象学]