Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Physicochemical Treatment for the Reduction of Fusarium spp. Infested in Adlay (Coix lacryma-jobi L.) Seeds

율무 종자 오염 Fusarium 속 진균 저감화를 위한 이화학적 처리

  • An, Tae Jin (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Kim, Young Guk (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Hur, Mok (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Lee, Jeong Hoon (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Lee, Yun Ji (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Cha, Sun Woo (Department of Herbal Crop Research, NIHHS, RDA) ;
  • Oh, Sang Keun (Department of Applied Biology, Chungnam National University)
  • 안태진 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김영국 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 허목 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 이정훈 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 이윤지 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 차선우 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 오상근 (충남대학교 농생물학과)
  • Received : 2015.08.17
  • Accepted : 2015.11.21
  • Published : 2015.12.30
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Abstract

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 ($1.1{\times}10^4CFU/g$), hexaconazol prochloraz emulsifiable concentrate ($1.2{\times}10^4CFU/g$), carboxin thiram dustable powder ($1.6{\times}10^4CFU/g$) and prochloraz emulsifiable concentrate ($1.7{\times}10^4CFU/g$) than in the non-treated control ($7.7{\times}10^4CFU/g$). 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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References

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