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- Title
Controlling effect of antagonist bioorganic fertilizer on tomato root-knot nematode.
- Authors
ZHU Zhen; CHEN Fang; XIAO Tong-jian; WANG Xiao-hui; RAN Wei; YANG Xing-ming; SHEN Qi-rong
- Abstract
Indoor in vitro culture experiment and greenhouse pot experiment were conducted to evaluate the capabilities of three bacterial strains XZ鄄173 (Bacillus amyloliquefaciens), SL鄄25 (B. gib鄄sonii), and KS鄄62 (Paenibacillus polymyxa) that can hydrolyze collagen protein in controlling tomato root鄄knot nematode. In the in vitro culture experiment, suspensions of XZ鄄173, SL鄄25, and KS鄄62 induced a mortality rate of 75郾9%, 66郾7%, and 50郾0% to the second鄄stage junior nematode within 24 h, and decreased the egg hatching rate to 17郾8%, 28郾9% and 37郾6% after 7鄄day incubation, respectively, in contrast to the 17郾4% mortality rate and 53郾6% egg hatching rate in the control (sterilized water). In the greenhouse pot experiment, the bioorganic fertilizer mixed with equal parts of fermented XZ鄄173, SL鄄25, and KS鄄62 gained the best result, with the root鄄knot nematode population in rhizosphere soil decreased by 84郾0% as compared with the control. The bioorganic fertilizer also decreased the numbers of galls and eggs on tomato roots significantly, and increased the underground and aboveground biomass of tomato. Therefore, antagonist bioorganic fertilizer has promising potential in controlling root鄄knot nematode.
- Subjects
ORGANIC fertilizers; TOMATO growers; ROOT-knot nematodes; PHYTOPATHOGENIC microorganisms; BIOLOGICAL control of insects; NEMATOCIDES; PHYSIOLOGICAL control systems; GREENHOUSE plants
- Publication
Yingyong Shengtai Xuebao, 2011, Vol 22, Issue 4, p1033
- ISSN
1001-9332
- Publication type
Article