马铃薯黄萎病生防木霉菌的分离与筛选

Screening and identification of Trichoderma in potato verticillium wilt

试验通过对分离到的木霉菌进行对峙初筛,同时结合室内和田间的防治效果测定,结果表明木霉菌株M-17是防效较好的生防菌株。在不同地区田间防治效果的测定中,菌株M-17的防治效果分别为52.14%和62.14%,防治效果高于化学药剂茄病泰诺。综合室内和田间的试验结果可知,M-17表现相对稳定,是具有良好生防效果的生防菌株,在生防马铃薯黄萎病方面具有较大开发前景。

At present,the potato verticillium wilt in recent years has become a serious impact on the main potato producing areas of one of the important diseases,how effective control of potato verticillium wilt has become an urgent need to solve the problem.Through the separation and screening of highly efficient biocontrol strains,the rational use of biological control means to control the potato verticillium wilt is imminent.The results showed that Trichoderma strain M-17 was a strain with good control effect.The results showed that Trichoderma strain M-17 was a good control strain.The control effect of strain M-17 was 52.14% and 62.14% respectively in the control of field control effect in different areas,and the control effect was higher than that of chemical agent.Therefore,the results of comprehensive indoor and field experiments showed that M-17 was relatively stable,and it was a biocontrol strain with good biocontrol effect.According to the results of molecular biology and morphological classification in the health of potato verticillium wilt has a greater development prospects.