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Effect of Ripening Temperatures on Incidences of Postharvest Fruit Rots of Kiwifruits

후숙 온도가 참다래 저장병 발병에 미치는 영향

  • Koh, Young-Jln (Department of Applied Biology, Sunchon National University) ;
  • Lee, Jae-Goon (Central Research Institute, Kyungnong Corporation) ;
  • Hur, Jae-Seoun (Department of Environmental Education, Sunchon National University) ;
  • Jung, Jae-Sung (Department of Biology, Sunchon National University)
  • Published : 2003.12.01

Abstract

This study was conducted to identify optimum ripening condition for kiwifruits (Actinidia deliciosa) to prevent postharvest fruit rots caused by Botryosphaeria dothidea, Diaporthe actinidiae and Botrytis cinerea. The optimum temperatures for mycelial growth of B. dothidea, D. actinidiae and B. cinerea were $26{\sim}35^{\circ}C$, $26{\sim}29^{\circ}C$ and $20{\sim}26^{\circ}C$, respectively, and the incidence was closely related with the temperature. Although kiwifruits ripened faster at higher temperatures, the rates of diseased fruits increased with the rates of ripened fruits increased. Optimum conditions for ripening of kiwifruit were 20-day at 17C.

Botryosphaeria dothidea, Diaporthe actinidiae 및 Botrytis cinerea에 의해 발생하는 참다래 저장병을 예방하기 위하여 참다래 최적 후숙 조건을 조사하였다. B. dothidea와 D. actinidiae의 균사 생육적온은 각각 $26{\sim}35^{\circ}C$$26{\sim}29^{\circ}C$였으며, B. cinerea의 균사 생육적온은 $20{\sim}26^{\circ}C$였으며, 저장병 발병율은 균사 생육적온과 밀접한 관계가 있었다. 참다래 과실을 후숙시킬 경우 고온일수록 후숙 기간을 단축시킬 수 있으나 후숙과 함께 저장병 발생도 증가하였다. 참다래 과실을 $17^{\circ}C$의 후숙 온도에서 20일 동안 후숙시키는 것이 가장 이상적인 후숙 조건이었다.

Keywords

References

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