番茄早疫病药剂防治研究
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番茄早疫病药剂防治研究(毕业论文8790字) 摘要： 采用生长速率测定法对6种杀菌剂对番茄早疫病进行了室内药剂筛选试验, 结果表明：在稀释1500倍液中，除安泰生(富锌)抑制生长率较小外，其它均为90%以上；从EC95来看，25%施保克EC和50%扑海因SC对番茄早疫病菌有很强的抑制作用，其值分别为408.8518ug/ml、571.5704 ug/ml ；从毒力方程的斜率来看，番茄早疫病菌对这两种药剂敏感性差异小，长期使用不易使病菌产生抗药性。田间防效试验结果表明，50%扑海因SC、40%施佳乐SC、70%代森锰锌WP对番茄早疫病的防治效果无显著差异；从防效考虑，建议在推广中每667m2用50%扑海因SC75-100g或40%施佳乐SC 50-100g防治番茄早疫病。 关键词: 番茄早疫病 杀菌剂 室内筛选 大田试验 防治效果 Chemical Control Of Tomato Early Blight Abstract： Growth rate measurement method using 6 kinds of fungicides on tomato early blight were Fungicide screening test results showed that: in the diluted 1500 times, in addition to An Taisheng (zinc) inhibit the growth rate of the smaller, the other 90% are Above;From the point of view EC95, 25% Shi Bao Ke EC and 50% Iprodione SC on solani has a strong inhibitory effect, and its value as 408.8518ug/ml, 571.5704 ug / ml;Equation from the slope of the virulence of view, solani insecticide susceptibility between these two small, long-term use is not easy to make bacteria resistant.Field efficiency test results show that 50% Iprodione SC, 40% pyrimethanil SC, 70% Mancozeb WP on Tomato Early Blight was no significant difference;From the control effect, it is recommended in the promotion of 50% for each 667m2 Iprodione SC75-100g or 40% of pyrimethanil SC 50-100g of tomato early blight control. Key words：tomato early blight microbicides Indoor screening Field experiment Control effect
目 录
摘要……………………………………………………………………………1
关键词…………………………………………………………………………1
1 前言…………………………………………………………………………………2
1.1番茄早疫病的发病条件………………………………………………………2
1.2番茄早疫病的防治方法………………………………………………………3
1.3国内外研究动态及发展趋势…………………………………………………3
2 材料与方法…………………………………………………………………………4
2.1 供试菌种、药剂和番茄品种 ………………………………………………4
2.2 室内筛选试验 ………………………………………………………………5
2.3 大田试验 ……………………………………………………………………5
2.3.1试验地点………………………………………………………………5
2.3.2小区设计及排列………………………………………………………5
2.3.3施药的时期与方法……………………………………………………6
2.3.4调查时间、次数及内容………………………………………………6
2.4 试验实施过程………………………………………………………………7
2.5 调查计算方法………………………………………………………………7
3 结果与分析…………………………………………………………………………8
3.1 番茄早疫病防治药剂室内筛选试验………………………………………8
3.1.1 药剂对番茄早疫病的抑制生长率…………………………………8
3.1.2 各药剂对番茄早疫病的抑制作用…………………………………8
3.2 大田防治番茄早疫病田间药效比较试验…………………………………9
4 结论与讨论………………………………………………………………………10
参考文献 ……………………………………………………………………………11
致谢 …………………………………………………………………………………13 |