超声辅助光催化对川西獐牙菜种子萌发能力的影响  

Effect of Ultrasound-assisted Photocatalysis on Seed Germination of Swertia mussotii Franch.

作　　者：董汇泽[1] 杨君丽[1] 李会山[1] 

机构地区：[1]青海大学,青海西宁810016

出　　处：《安徽农业科学》2010年第31期17397-17398,共2页Journal of Anhui Agricultural Sciences

基　　金：青海省科技攻关项目(2007-N-126)

摘　　要：[目的]研究超声辅助纳米TiO2光催化处理对川西獐牙菜种子萌发的影响。[方法]采用超声辅助纳米TiO2光催化处理川西獐牙菜种子，比较不同超声时间（15、30、45、60、75、90min）和超声强度（120、150、180、210、240、270、300W）处理种子发芽势和发芽率的差异。[结果]超声功率为210W、超声时间为30～60min或超声时间为45min、超声功率为210～240W时，超声辅助纳米TiO2光催化对川西獐牙菜种子萌发均具有明显的促进作用，其中超声功率为210W，超声时间为45min的处理效果最好。[结论]一定强度和作用时间的超声波辅助TiO2光催化处理可明显促进川西獐牙菜种子萌发。[ Objective ] The aim was to study the effect of ultrasound-assisted nanometer TiO2 photocatalysis on seed germination of Swertia mussotii Franch. [ Method ] The S. mussotii seeds were treated by ultrasound-assisted nanometer TiO2 photocatalysis. The differences of seed germination potential and germination rate in treatments with different ultrasonic time （15,30,45,60,75,90 min） and ultrasound intensity （ 120,150,180,210,240,270,300 W） were compared. [ Results] The ultrasound-assisted nanometer TiO2 photocatalysis had obvious promotion on seed germination of S. mussotii when ultrasonic power was 210 W,uhrasonic time was 30 - 60 min or ultrasonic time was 45 min,ultrasonic power was 210 - 240 W. And the treatment effect was the best when ultrasonic power was 210 W and ultrasonic time was 45 min. [ Conclusion] The treatment of ultrasonic with certain intensity and time assisted nanometer TiO2 photocatalysis could obviously promote the Seed germination of S. mussotii.

关 键 词：纳米TIO2 光催化剂 超声波 川西獐牙菜 种子萌发 

分 类 号：S603.6[农业科学—园艺学]