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KMID : 1098420150230060460
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Korean Journal of Medicinal Crop Science
2015 Volume.23 No. 6 p.460 ~ p.467
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Physicochemical Treatment for the Reduction of Fusarium spp. Infested in Adlay (Coix lacryma-jobi L.) Seeds
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Ahn Tae-Jin
Kim Young-Guk
Hur Mok
Lee Jeong-Hoon
Lee Yun-Ji
Cha Sun-Woo
Oh Sang-Keun
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Abstract
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Background : The aim of the present study was to identify an effective physicochemical control method to reduce Fusarium species infestation in adlay (Coix lacryma-jobi L.) before and after harvesting.
Methods and Results : We observed that prochloraz emusifiable concentrate and hexaconazol prochloraz emusifiable concentrate strongly inhibited the mycelial growth of 10 Fusarium species. Strong growth inhibitions and cell lysis were observed following treatment with 4% NaOCl solution. The total number of fungi detected were lower follwing treatment with thiophanatemethyl triflumizole wettable powder (1.1 × 104 CFU/g), hexaconazol prochloraz emulsifiable concentrate (1.2 × 104 CFU/g), carboxin thiram dustable powder (1.6 × 104 CFU/g) and prochloraz emulsifiable concentrate (1.7 × 104 CFU/g) than in the non-treated control (7.7 × 104 CFU/g). The reduction of Fusarium fungi varies with the concentration and soaking time of NaOCl solution. Fungal detection was not observed after soaking in NaOCl solution for 24 h and harmful effects were not observed for plant growth by NaOCl after soacking for 6 - 12 h.
Conclusion : Soaking seed for 6 - 12 h in 4% NaOCl could be an effective method of disinfectant treatment for the control of Fusarium fungi in adlay seeds.
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KEYWORD
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Coix lacryma-jobi L., Fusarium spp., Physicochemical Treatment, Reduction, Seeds
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