摘要
目的:了解栽培滇龙胆病害种类,为预防提供参考。方法:通过田间调查、症状观察、样本采集、病原菌分离、形态鉴定及柯赫氏验证程序来鉴定确诊。结果:栽培滇龙胆的病害为炭疽病(Colletotrichum gloeosporioides)、灰霉病(Botrytis cinerea)、褐斑病(Alternaria tenuis)、锈病(Aecidiumpers)、圆斑枯病(Pestalotiopsis)、匐柄霉叶枯病(Stemphylium sp.)、壳二孢叶枯病(Ascochyta sp.)、格孢腔菌(多胞菌)叶枯病(Pleospora sp.)及胞囊线虫病(Hetero-dera spp.)和根结线虫病(Meloidogyne spp.)。其中以炭疽病为主要病害,发病株率40%以上,严重度达4～5级;其次是锈病,发病株率10%以下;其他病害发病株率在2%以下。结论:滇龙胆以上几种病害为首次报道,滇龙胆是这些病原菌的新记录寄主。针对这些病害提出了相应的防治措施。
Objective :To find out variety of the fungal diseases of cultivated Gentiana rigescens and provide important basis for prevention.Methods:The diseases were diagnosed based on field investigate,symptoms observation,pathogen isolation,determination the size of morphological and verification following the Koch's Postulate procedures.Results:Anthracnose(Colletotrichum gloeosporioides),grey mould(Botrytis cinerea),brown spot(Alternaria tenuis),rust(Aecidiumpers),circular spot(Pestalotiopsis),leaf blight(Stemphylium,Ascochyta,Pleospora)and nematodes(Heterodera spp.,Meloidogyne spp.)were found on Gentiana rigescens.Anthracnose was the first main disease,the diseased plant rate was over 40% and disease severity was 4～5 degree and second disease was rust,incidence of rate was less 10% and other diseases rate was not enough 2%.Conclusion :All these diseases on Gentiana rigescens are reported for the first time and Gentiana rigescens is the new host plant of the diseases.
出处
《中药材》
CAS
CSCD
北大核心
2012年第1期6-11,共6页
Journal of Chinese Medicinal Materials
基金
国家十二五支撑计划子课题(2011BAI13B02)
关键词
滇龙胆
病害种类
生态治理
Gentiana rigescens Franch.
Variety diseases
Ecological control
