Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effect of Harvest Date on Fruit Quality and Core Breakdown of 'Wonhwang' Pears

수확시기에 따른 '원황' 배 과실의 품질과 과심갈변에 미치는 영향

  • 최진호 (국립원예특작과학원 배연구소) ;
  • 임순희 (국립원예특작과학원 배연구소) ;
  • 김성종 (국립원예특작과학원 배연구소) ;
  • 이한찬 (국립원예특작과학원 배연구소) ;
  • 권용희 (국립원예특작과학원 배연구소) ;
  • 박용서 (목포대학교 원예과학과) ;
  • 정석규 (대구가톨릭대학교 원예학과) ;
  • 최현석 (대구가톨릭대학교 원예학과)
  • Received : 2014.11.04
  • Accepted : 2015.01.05
  • Published : 2015.03.31
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Abstract

This study was conducted on how the harvest time affect fruit quality, core breakdown, and taste of GA-pasted 'Wonhwang' pear (Pyrus pyrifolia Nakai) fruit in order to verify the optimum harvest time. Harvest time included 110, 115, 120, 125, 130 days after full bloom (DAFB). Delayed fruit harvest increased fruit weight and content of soluble solids but decreased firmness, titratable acidity, and starch content. Harvest at 130 DAFB severely reduced fruit firmness and increased fruit core breakdown for 21 days at room storage, while harvest at 115 DAFB showed the opposite result of the fruit firmness and breakdown. Delayed fruit harvest reduced fruit taste, regardless of GA pasting on fruit. GA-pasted fruit showed reduced taste in advance compared to those of non GA-pasted fruit, regardless of the harvest time. Harvest at 120 DAFB would be suitable to maintain fruit quality and reduce core breakdown.

본 시험은 GA로 처리된 '원황' 배(Pyrus pyrifolia Nakai)를 수확시기를 달리하였을 때 과실품질, 과심갈변, 그리고 기호도가 어떠한 영향을 받는지와 이에 적절한 수확시기를 규명하고자 수행되었다. 시험 처리는 만개 후 110, 115, 120, 125, 130일에 수확한 것을 포함하였다. 수확시기가 지연될수록 과중과 당도는 증가한 반면에 과육경도와 산도 그리고 전분함량은 감소하였다. 상온보관 21일 동안 만개 후 130일에 수확된 과실의 과육경도는 크게 감소하였고 과심갈변 증상은 심화된 반면에 115일에 수확된 과실의 경도와 과심갈변의 감소는 천천히 진행되었다. 수확시기의 지연은 GA 처리와 상관없이 과실의 기호도를 감소시켰다. GA 처리과의 기호도 감소는 수확시기에 관계없이 GA 무처리 과실 보다 일찍 관찰되었다. 만개 후 120일에 수확을 하는 것이 GA로 처리된 과실의 품질 유지와 과심갈변 억제를 위하여 효과적인 수확시기로 판단된다.

Keywords

References

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