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2019年山西省梨锈病发生与流行特征研究

作  者:
赵龙龙;张未仲;周鹏程;李捷
单  位:
关键词:
梨锈病;冬孢子;降水量;平均气温;流行特征
摘  要:
研究了梨锈病菌(Gymnosporangium haraeanum Syd.)冬孢子角在不同含水量和温度条件下的开裂和繁殖情况,并通过调研及监测手段研究了山西梨产区2019年锈病的发生情况,在此基础上,结合气象因子对梨锈病发生与流行条件进行了探究.结果表明,15~20℃条件下,发育成熟的梨锈病冬孢子角浸水10min可开裂,12h可检测到冬孢子和发育的担孢子;山西省梨产区锈病发生程度从北到南依次加重;4月份降水后平均温度≥15℃的环境条件,是诱发锈病发生的主要因子,为防控的关键点.
译  名:
Study on the Occurrence and Epidemic Characteristics of Pear Rust in Shanxi Province in 2019
作  者:
ZHAO Long-long;ZHANG Wei-zhong;ZHOU Peng-cheng;LI Jie;Shanxi Academy of Agricultural Sciences Polomogy Istitute;Shanxi Academy of Agricultural Sciences Horticul Research Istitute;
关键词:
pear rust;;teliospore;;precipitation;;average temperature;;epidemic characteristics
摘  要:
This article investigates the cracking and propagation of the horn-like telia from Gymnosporaugium haraeanum under different water content and temperature conditions.Here,we presented the occurrence of pear rust in the Shanxi pear production area in 2019 through investigation and monitoring and analyzed the epidemic conditions for pear rust together with meteorological factors.The results showed that under the condition of 15~20℃,the mature horn-like telia could be cracked after soaking for 10 min,and teliospore and basidiospore couldbe detected within 12 hours.The occurrence of pear rust in pear production areas in Shanxi increased from north to south.The average temperature over 15 ℃ after precipitation in Aprilwas the main factor inducing pear rust and therefore the key points for prevention and control.

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