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《Journal of Hebei University(Natural Science Edition)》 2009-04
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Disease Prevention of Compound Fermentation of Antagonistic Fungi and Actinomyces on Potato Late Blight

GUI Chun-shuang1,LIANG Ning2,JIANG Ji-zhi1(1.College of Life Sciences,Hebei University,Baoding 071002,China;2.Library,Hebei University,Baoding 071002,China)  
In order to obtain more stable prevention effect of antagonistic microorganisms on potato late blight,the inhibition of fungal growth and disease prevention of combination fermentation and compounds after separation fermentation from fungal and actinomyces were investigated using the Filter paper method in this experiment.The results showed that there were evident antagonistic between tested fungi and actinomyces.In addition,vibration culture was suitable for fungi,while stationary culture for actinomyces.The most suitable compound volume ratio was composed of Alternaria alternate and NB8 fermentation as a 2∶1.Its inhibitory rate was 96.81% to growth of Phytophthora infestans and better than that of any other separate fermentation.The antagonistic way of separate or compound fermentation was to inhibit the growth of P.infestans but didn't kill it.The inhibition of compound fermentation was more marked.On tuber slices,the disease index of pre-treatment with compound fermentation was only 44.44%,and significant lower than that of separate fermentation treatment.It is revealed that compound fermentation of A.alternate and NB8 might have a great potential role in control potato late blight in future.
【Fund】: 河北省自然科学基金资助项目(C2007000191);; 公益性行业(农业)科研专项(3-20)
【CateGory Index】: S435.32
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