哈茨木霉TR-12对番茄褐斑病菌的拮抗作用  

Antagonism of Trichoderma harzianum Strain TR-12 against Helminthosporium carposaprum

作　　者：吴利民[1] 陆宁海[1] 郎剑锋[1] 田雪亮[1] 徐瑞富[1] 王旭丽[2] 

机构地区：[1]河南科技学院植物保护系,新乡453003 [2]西北农林科技大学植物保护学院,陕西杨凌712100

出　　处：《西北农业学报》2006年第6期186-188,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：农业部农业种植结构调整重大技术专项(03-07-02A)子项目;河南科技学院高层次人才科研资助项目(030109)

摘　　要：PDA平板拮抗试验表明，哈茨木霉对番茄褐斑病菌有强烈的拮抗作用，其孢子悬浮液的含孢量为10^5～10^8个／ml，时，对番茄褐斑病菌的抑制率高达82．5％。比较测定了哈茨木霉菌液和4种药剂对番茄褐斑病菌的抑制效果。哈茨木霉对番茄褐斑病菌的抑制作用较50％速克灵WP和50％退菌特WP相对较差，哈茨木霉菌孢子悬浮液含孢量10^6个／mL的抑制效果与75％百菌清相近，含孢量10^8个／ml，的抑制效果与70％甲基托布津相当。The antagonistic experiment of Trichoderrna harzianum to Helrninthosporiurn carposaprurn was tested , the results showed that Trichoderrna harzianurn had strong against Helminthosporium carposaprurn The effective concentration was at 10^5 -10^8/mL, the inhibitory effect reached 82.5%. Compared effect of Trichoderrna harzianurn and four kinds of fungicides against Helminthosporium carposaprurn Wei , the results showed that Trichoderrna harzianurn had almost the same effect as Thiophanate- methyl and Chlorothaloni, although its effect lower than Sumilex and Tuzet.

关 键 词：哈茨木霉 番茄褐斑病菌 拮抗作用 

分 类 号：S436.412[农业科学—农业昆虫与害虫防治]