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.
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.
出处
《植物病理学报》
CAS
CSCD
北大核心
2010年第1期106-109,共4页
Acta Phytopathologica Sinica
基金
公益性行业科研专项(3-15)
国家科技支撑计划项目(2006BAD08A05
2006BAD02A16)
