Microflora of Decayed Onion Bulbs and their Suppression by Fumigation Treatment

양파의 부패원인균 분포 및 훈증처리에 따른 억제효과

  • 김현구 (농어촌개발공사 종합식품연구원) ;
  • 이형춘 (농어촌개발공사 종합식품연구원) ;
  • 박무현 (농어촌개발공사 종합식품연구원) ;
  • 신동화 (농어촌개발공사 종합식품연구원)
  • Published : 1986.02.01


Putrefactive microorganisms from infected onion bulbs collected at several areas were isolated and identified. The infecting microorganisms were mostly the species of Botrytis, Fusarium, Penicillium, Ericinia and Pseudomonas, among which the last was not pathogenic to onion bulbs. Fumigation of onion bulbs with Tetrachloroisophthalonitrile cut down decay rate by half of the control and the onion bulbs stored at 80% RH showed slow decay rate than those stored at 90% RH. The decay of onion bulbs was mainly caused by molds and the portions of them were 78-85% of Botrytis, 11-17% of Fusarium and 3-5% of Penicillium.