摘要
2011-2012年对甘肃省胡麻白粉病田间发生规律进行了系统的观察,分析了温度和湿度对病害发生程度的影响。结果表明:白粉病在6月中下旬始发,7月中上旬达到高峰,且在田间自然条件下零星发生至全田发生只需要15-20d左右,发生的最适温度为20-25℃,低于20℃或高于25℃发生缓慢。最适温度下,降雨量大、高湿条件利于白粉病的发生。
From 2011 to 2012,we investigated the field occurrence regularity of linseed powdery mildew（ Oidium Lini Skoric） in Gansu province,and analyzed the influence of temperature,humidity on its occurrence and development. The results showed that powdery mildew occurred in middle- late-June,and reached a peak in mid- early- July. It only takes 15- 20 days from sporadic occurrence to a whole field under natural conditions. The optimum occurrence temperature was 20℃ to 25 ℃,it grows slowly below 20 ℃ or above 25 ℃. Under optimum temperature,heavy rainfall and humidity were beneficial to it growth.
出处
《中国麻业科学》
2015年第1期26-29,共4页
Plant Fiber Sciences in China
基金
国家胡麻产业技术体系建设专项基金(CARS-17-GW-6)
关键词
胡麻
白粉病
发生规律
linseed
powdery mildew
occurrence regularity
