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| Effect of Different Concentration Bacillus subtilis Aqua on Controlling and Preventing Cucumber Fusarium Wilt |
| LIU Dong，HONG Feng，PU Zi-jing，MIAO Di，MA Bai-zhuang，ZHANG Yan-ju* |
| College of Agronomy，Northeast Agricultural University，Harbin 150030，Heilongjiang，China |
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Abstract To evaluate the control effect of Bacillus subtilis aqua（2.5×1012 cfu?L-1 Bacillus subtilis）against cucumber Fusarium wilt，and to know its influence on cucumber growth and production，we carried out plot test in fields from 2008 to 2009．The results indicated that the control efficiencies of 8.3×109 cfu?L-1 were 81.8% and 77.5%，respectively，which were significant higher than 5.0×109 cfu?L-1and 3.1×109 cfu?L-1，but there was no significant difference as 50% carbendazim（WP）treatment．Besides，B. subtilis aqua was safe to cucumber and has certain effect on its yield increasing．Compared with other treatments，8.3×109 cfu?L-1 AS treatment has the best effect on increasing production．The yield increase rates in 2008 and 2009 was 5.8% and 10.0%，respectively．
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Received: 07 November 2011
Published: 01 February 2012
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