云南省3个海拔区域滇牡丹主要叶部病害发生动态分析  

Occurrence dynamics analysis of main leaf diseases of Paeonia delavayi in three altitude areas of Yunnan province

作　　者：潘悦 杨贵钗 陈婉东 刘建福 王俊威 王娟 PAN Yue;YANG Guichai;CHEN Wandong;LIU Jianfu;WANG Junwei;WANG Juan(Eco-development Academy,Southwest Forestry University,Kunming 650224,China;College of Garden and Horticulture,Southwest Forestry University,Kunming 650224,China;College of Forestry,Southwest Forestry University,Kunming 650224,China;School of Geography and Ecotourism,Southwest Forestry University,Kunming 650224,China)

机构地区：[1]西南林业大学绿色发展研究院,昆明650224 [2]西南林业大学园林园艺学院,昆明650224 [3]西南林业大学林学院,昆明650224 [4]西南林业大学地理与生态旅游学院,昆明650224

出　　处：《植物保护》2023年第6期258-266,共9页Plant Protection

基　　金：云南省基础研究专项(202001AU070105);云南省农业联合专项(202101BD070001-096);云南省重大科技专项(202002AA100007)。

摘　　要：为了解云南省滇牡丹叶部病害的发生动态,本研究开展了3个海拔区域滇牡丹主要叶部病害周年调查及病原真菌初步鉴定,并探讨海拔高度、温度和降雨量对滇牡丹病害发生的影响。结果表明,3个海拔区域滇牡丹主要叶部病害为黑斑病、红斑病和炭疽病,病原菌分别为链格孢属Alternaria、枝孢属Cladosporium和刺盘孢属Colletotrichum的真菌。其中黑斑病和炭疽病在稗子乡(2000 m)发病较重,其次是梁王山(2400 m)和香格里拉(3400 m),发病率和病情指数呈现随海拔升高逐渐下降的趋势。此外,稗子乡的病害发生动态与月平均温度、降雨量的变化规律基本趋于一致,且3种病害的发病程度与月平均温度、降雨量显著相关。综上所述,低海拔且温湿度较大的区域滇牡丹叶部病害发生较重,本研究为滇牡丹病害防治提供了参考依据。In order to understand the occurrence dynamics of leaf diseases of Paeonia delavayi in Yunnan province,an annual survey of the main leaf diseases and the identification of pathogenic fungi in three altitude areas were conducted,and the effect of altitude,temperature and rainfall on the occurrence of the diseases was discussed.The results showed that the main leaf diseases of P.delavayi in three altitude areas were black spot,red spot and anthracnose,and the pathogens were Alternaria spp.,Cladosporium spp.and Colletotrichum spp.,respectively.Among them,the incidence of black spot and anthracnose was relatively serious in the Baizi township(2000 m),followed by Liangwang Mountain(2400 m)and Shangri-La(3400 m).The incidence and disease index showed a decreasing trend with the increase of altitude.In addition,the disease occurrence dynamics of Baizi township was basically consistent with the change rules of monthly average temperature and rainfall,and the incidence of the three diseases was significantly related to the monthly average temperature and rainfall.To sum up,the leaf disease of P.delavayi was relatively serious in the areas with low altitude,high temperature and humidity.This study provided a reference for disease control of P.delavayi.

关 键 词：云南省 滇牡丹 海拔区域 叶部病害 动态分析 

分 类 号：S435.671[农业科学—农业昆虫与害虫防治]