Application Technologies and Demonstration Trials in Fields of Bacillus amyloliquefaciens B1619 against Tomato Fusarium Wilt

doi:10.16409/j.cnki.2095-039x.2017.04.011

Abstract

Abstract: Bacillus amyloliquefaciens B1619 possesses biocontrol activity against Fusarium wilt of tomato. It's essential to establish the high-efficiency application technology system under different environmental conditions. Colonizing ability, the appropriate dosage, usage and control efficiency of B1619 were studied in field trials. According to the results, the colonization in rhizosphere soil was up to 5.9×10⁴ cfu/g, which reached the peak at 8th day and kept high level till 21th day. The control efficiency (65.1%-85.2%) was significantly higher than the chlorolthalonil (75%) when the fertilization methods were root-drenching or hole fertilization at a dose of greater than or equal to 6 g per plant. The demonstration trials indicated that the control efficiency of B1619 against Fusarium wilt of tomato was up to 85%-90%.

Key words: Bacillus amyloliquefaciens, tomato Fusarium wilt, high-efficiency application technologies in fields, biocontrol efficiency

CLC Number:

S476

WANG Luyao, LI Xingdong, DUAN Tianfeng, YANG Xiaoyun, LIU Yongfeng, CHEN Zhiyi. Application Technologies and Demonstration Trials in Fields of Bacillus amyloliquefaciens B1619 against Tomato Fusarium Wilt[J]. journal1, 2017, 33(4): 512-518.

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