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Studies on Botrytis cinerea Density in Packing Shed and Gray Mold Incidence Following Storage-Temperature in Exported Strawberry

수출딸기 선별장에서 잿빛곰팡이병원균 밀도조사와 저장온도에 따른 잿빛곰팡이병 발생 연구

  • Kim, Da-Ran (Division of Applied Life Science, Gyeonsang National University) ;
  • Jeon, Chang Wook (Division of Applied Life Science, Institute of Agricultural & Life Science, Gyeongsang National University) ;
  • kwak, Youn-Sig (Division of Applied Life Science, Gyeonsang National University)
  • 김다란 (경상대학교 응용생명과학부) ;
  • 전창욱 (경상대학교 농업생명과학연구원) ;
  • 곽연식 (경상대학교 응용생명과학부)
  • Received : 2015.06.17
  • Accepted : 2015.08.07
  • Published : 2015.09.30

Abstract

Currently, amount of export strawberry has been continuously increased to ship many south Asia countries, including Hong Kong and Singapore. In the distribution process, significant damage to the quality has been caused depending on the environmental conditions. Gray mold disease caused by Botrytis cinerea has been known as major damage to the export strawberry, and the disease was caused during shipping and distribution to the final consumers. This study was performed to assess the relationship between pathogen density in packing shed and disease incidence of gray mold during storage period. Maximum gray mold disease incidence in storage period was up to 16% with low temperature condition ($4^{\circ}C$). At room temperature condition, the disease incidence reached up to 100% even densities of the pathogen spore were recorded relatively low in the packing shed. As results of the study, the correlation between pathogen density in the air and disease occurrence clearly clarified.

국내 딸기는 현재 홍콩, 싱가포르 및 동남아시아 지역으로 수출량이 증대되고 있는 가운데 유통과정에서 환경조건에 따라 품질에 손상이 크게 발생하고 있다. 주로 수출딸기에 품질손상을 일으키는 잿빛곰팡이병은 다른 국가로 이동하는 동안 혹은 수입국에서 소비자에게 판매되기까지의 기간 동안 발생하고 있다. 본 연구는 수출딸기 선별장 공기중 부유중인 잿빛곰팡이병원균의 밀도와 저장중 발병률에 관한 상관관계를 규명하기 위하여 수행되었다. 공기중 병원균의 밀도가 증가함에 따라 저온 저장중 병 발생율이 최대 16%로 나타났다. 상온저장의 경우 상대적으로 공기중 병원균의 밀도가 낮게 조사된 12월 말부터 발병율 100%가 관찰 되었다. 본 연구결과, 선별장의 잿빛곰팡이 병원균 밀도와 저장중 병발생의 상관관계가 구명되었다.

Keywords

References

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