摘要
【目的】对重庆市小麦条锈病的发病规律和影响因素进行分析,为重庆市小麦条锈病综合防治提供科学依据。【方法】收集整理重庆市2009-2014年间小麦条锈病监测资料和温度、降水等气象要素的变化情况,对重庆市小麦条锈病发生现状及特点进行总结,同时对影响该病流行的因素进行初步分析。【结果】重庆市在经历了2009年的小麦条锈病大流行之后,2010-2014年发病程度虽然有所减轻,但仍呈波动性发生的特点。小麦品种抗病性的丧失、充足的越冬菌源量以及适宜的冬春温湿度与该病在重庆市的发生程度密切相关。【结论】结合病原菌小种毒性变异速度和菌源地压力因素分析认为,重庆市再次暴发小麦条锈病的可能性非常大。
【Objective】Occurrence regularity and influencing factors of wheat stripe rust in Chongqing were analyzed to provide scientific basis for its comprehensive control.【Method】The monitoring data of wheat stripe rust and meteorological data including temperature and precipitation were collected from 2009 to 2014in Chongqing.The current situation and occurrence characteristics of wheat stripe rust were summarized and the influencing factors were analyzed.【Result】The disease severity reduced between 2010and2014 with a fluctuating trend after the epidemic in 2009.Loss of wheat disease resistance,enormous overwinter inoculum source,and appropriate temperature and humidity closely related with disease severity.【Conclusion】Combined analysis on the race variation rate and the stress of inoculum source regions suggested that wheat stripe rust has large possibility to breakout again in Chongqing.
作者
杨宇衡
宿巧燕
王泽乐
周天云
刘祥贵
毕朝位
余洋
康振生
YANG Yuheng SU Qiaoyan WANG Zele ZHOU Tianyun LIU Xianggui BI Chaowei YU Yang KANG Zhensheng(College of Plant Protection, Southwest University, Chongqing 400716, China Chongqing Seed Management Station,Chongqing 401121, China State Key Laboratory of Crop Stress Biology for Arid Areas ,College of Plant Protection, Northwest A&F University ,Yangling ,Shaanxi 712100 ,China)
出处
《西北农林科技大学学报(自然科学版)》
CSCD
北大核心
2016年第9期151-157,共7页
Journal of Northwest A&F University(Natural Science Edition)
基金
重庆市基础科学与前沿技术研究专项(cstc2016jcyjA0810)
中央高校基本科研业务费专项资金项目(XDJK2015C057,XDJK2016A020,SWU114046)
旱区作物逆境生物学国家重点实验室开放基金项目(CSBAA2015009)
关键词
重庆市
小麦条锈病
发生规律
影响因素
Chongqing
wheat stripe rust
occurrence regularity
influencing factor