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中文摘要：
[目的]寻找新的广谱性、环保型花卉炭疽病防治方法。[方法]研究实验室模拟太阳光下纳米TiO2光催化剂对花卉炭疽病菌的杀灭效果，探讨催化剂浓度、使用量、光照时间和光照强度对杀菌效果的影响。[结果]当纳米TiO2光催化剂浓度为1.0%时，其杀菌效果达到92.0%；当纳米TiO2光催化剂用量为1.25ml时，其杀菌效果最好，达87.3%；随光照时间的延长或光照强度的增强，纳米TiO2光催化剂的杀菌效率提高。在催化剂浓度为1.0%，用量为1.25ml的条件下，用光辐照强度为254nm：23.9μW/cm^2、297nm：2.7μW/cm^2、365nm：101.2μW/cm^2、420nm：118μW/cm^2,光通量86.3×10^2lm的卤灯辐照2h，对真菌的杀灭效果近100%。[结论]纳米TiO2光催化剂具有良好的光催化活性，在实验室模拟太阳光下对花卉炭疽病菌有较强的杀灭作用。
英文摘要：
[ Objective ] The controlling method of new type of flower anthrax bacteria was researched. [ Method ] The effect of the flower anthrax bacteria with the nano-TiO2 photocatalyst under the simulation of the sunlight in laboratory was researched including the concentration and application amount of catalyst. [ Results] The results showed that the controlling efficiency was 92.0% while the concentration of the nano- TiO2 photocatalyst was 1.0% ; the best efficiency, 87.3% while the amount of nano-TiO2 photocatalyst was 1.25 ml; and with the increment of the time or intensity of light, the effect of nano-TiO2 photocatalyst was gradually strengthened. 100% controlling efficiency of the flower anthrax bacteria could be produced with the halogen lamp with the luminous flux of 86.3 × 10^2 lm, the light intensity of 254 nm ：23.9 μW/cm^2, 297 nm,2.7 μW/cm^2, 365 nm：101.2 μW/cm^2 or 420 nm： 118 μW/cm^2, under the condition of the concentration of the 1.0% nano-TiO2 photocatalyst and the amount of 1.25 ml nano-TiO2 photocatalyst for two hours treatment. [ Conclusion] The nano-TiO2 photocatalyst had good activity and strong killing ability to flower anthrax bacteria under the simulation of the sunlight in laboratory.
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