苦参提取液对小麦条锈病菌的抑菌作用
毕业论文关键词：苦参；提取液；小麦；条锈病菌；抑菌作用
Antibacterial Sophora Extract of Wheat Stripe Rust Pathogen
Abstract: Wheat stripe rust is one of the major diseases of wheat production and harm, at this stage the main use of chemical control, and now in order to develop biopharmaceuticals and select Sophora based reagents. Inhibition of Sophora extract the clear wheat stripe rust, and now the biological test method to measure, test and test its experimental determination of Sophora was planted to wheat stripe rust inhibition extracted by the indoor spore germination. The results showed that, Sophora extract of wheat stripe rust inhibition indeed, know only the Sophora concentration. Spore germination experiment at the best inhibitory concentration of 9mg / mL, the inhibition rate was 81.6; test planting experiments, spray three times the drug treatment group relative disease index efficacy was 97.3. In the test comparison, spray three times Sophora extract the best, than spraying a chemical increased 70.2 percentage points higher than two times spraying agents increased 11.5 percent, and the effect is almost hundred-arguments agents. The experimental results: Sophora extract of wheat stripe rust occurrence indeed better inhibition, the high incidence of wheat stripe rust, spray the drug can be a good control stripe rust occurred. For subsequent spraying frequency, time interval, drug duration, residual, whether there will be some side effects, for further study.
Keywords: Sophora flavescens;Extract;wheat;Puccinia striiformis;Antimicrobial effect
目 录
摘要： 1
引言 2
1.材料与方法 3
1.1试验时间及地点 3
1.2材料 3
1.3试验方法 3
1.3.1苦参提取液的制备 3
1.3.2室内孢子萌发试验 3
1.3.3苦参提取液对孢子萌发抑制率的测定 4
1.3.4实验室种植小麦试验 4
2.结果与分析 5
2.1孢子萌发试验结果 5
2.2 试验种植小麦防治结果 5
3.结论 6
参考文献 7
致谢 9
苦参提取液对小麦条锈病菌的抑菌作用 引言
小麦条锈病是由担子菌纲、锈菌目、柄锈科条形柄锈菌引起的气传性病害，是危害我国小麦生产上最重要病害之一[8]。在病害传播中属于远程气传，其传播特点有分布广、传播速度快、发生范围广，发病特点有流行频率高、暴发性强、防治难度大、危害严重等，在我国华北、淮北、西北、西南等小麦种植区的尤为严重，可以让亩产和总产量减少甚至颗粒无收，对我国这样的需粮大国可以说是影响相当大[8]。
下一篇：甲基立枯磷降解菌的选育及鉴定