| 2008年我国部分麦区小麦白粉病菌群体对温度的敏感性 |
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| 引用本文： | 宛琼,丁克坚,段霞瑜,周益林.2008年我国部分麦区小麦白粉病菌群体对温度的敏感性[J].植物病理学报,2010,40(1):106-109. |
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| 作者姓名： | 宛琼 丁克坚 段霞瑜 周益林 |
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| 作者单位： | 1 中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193;2 安徽农业大学植物保护学院, 合肥 230036 |
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| 基金项目： | 公益性行业科研专项，国家科技支撑计划项目 |
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| 摘 要： | The sensitivity of 113 isolates of wheat powdery mildew (Blumeria graminis f. sp. tritici) sampled from 6 provinces or cities in 2008 to temperature was tested by detached leaf segment method with setting up 5 different temperatures indoor. The results showed the mean ET50 (which represents the temperature that is required to obtain 50% of the maximum effect) of all isolates tested was 23.02℃. ET50 values of 17.70% isolates were more than 24℃. The highest and the lowest ET50 of isolates were 25.22℃ and 19.42℃, respectively. There were a certain differences for isolates sensitivity to temperature among different provinces or cites. It was also found that when temperature increased during 22-26℃, the latent period of isolates prolonged, and the latent period of different isolates was different at the same temperature, too. These results will provide a reference for the oversummering division of wheat powdery mildew, as well as the effect of climate to the disease.
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| 关 键 词： | 小麦白粉菌 菌群体 温度敏感性 小麦白粉病 病害发生 菌株 严重度 温度处理 |
Sensitivity of population of Blumeria graminis f.sp.tritici isolates to temperature in 2008 |
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| WAN Qiong,DING Ke-jian,DUAN Xia-yu,ZHOU Yi-lin.Sensitivity of population of Blumeria graminis f.sp.tritici isolates to temperature in 2008[J].Acta Phytopathologica Sinica,2010,40(1):106-109. |
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| Authors: | WAN Qiong DING Ke-jian DUAN Xia-yu ZHOU Yi-lin |
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| Institution: | 1 Institute of Plant Protection of Chinese Academy of Agricultural Sciences, The State Key Lab for Biology of Plant Disease and Insect Pest, Beijing 100193, China;2 Laboratory of Plant Pathology, Anhui Agricultural University, Hefei 230036, China |
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| Abstract: | The sensitivity of 113 isolates of wheat powdery mildew (Blumeria graminis f.sp.tritici) sampled from 6 provinces or cities in 2008 to temperature was tested by detached leaf segment method with setting up 5 different temperatures indoor.The results showed the mean ET_(50) (which represents the temperature that is required to obtain 50% of the maximum effect) of all isolates tested was 23.02℃.ET_(50) values of 17.70% isolates were more than 24℃.The highest and the lowest ET_(50) of isolates were 25.22℃ and 19.42℃,respectively.There were a certain differences for isolates sensitivity to temperature among different provinces or cites.It was also found that when temperature increased during 22-26℃,the latent period of isolates prolonged,and the latent period of different isolates was different at the same temperature,too.These results will provide a reference for the oversummering division of wheat powdery mildew,as well as the effect of climate to the disease. |
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| Keywords: | wheat Blumeria graminis f sp tritici temperature sensitivity |
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