复合木霉菌对水稻立枯病的防治研究

Studies on the Control of Rice Seedling Blight by Complex Strains of Trichoderma spp

应用木霉菌混合菌株防治水稻立枯病的结果表明，当不同菌株间混合时，从出苗率上看，除了有两个混合菌株处理出苗率显著低于对照和其它处理外，大多数处理间差异不显著；从对水稻立枯病的防治效果上看，只有少数组合具有增效作用，其余大多数是降效。具有增效作用的是９４３１１０＋９４５２３以及９４４０＿４＋９５２４＿５，总体防效最好的是９４４０＿４＋９５２４＿５，防效为９０８２％。

The efficacy of complex strains between 6 different Trichoderma spp .strains to control rice seedling blight was reported.The result showed that in seedling emergence there was no significantly difference among the complex strains,single strain and control except two complex strains(943110+9440_4 and 9452_3+9524_5).However,the efficacy of treatments to control rice seeding blight were significantly different.Some complex strains showed good effectiveness (better than the two original single strains),some showed the efficacy of complex strains were between the two original single strains and some did not show any effectiveness.The best one was 9440_4+9524_5 and its efficacy was 90.82 %.