Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Change in the Bourse Shoot and Fruit Growth due to the Gibberellins Paste in the Young Fruit of Niitaka Pear

유과기 지벨렐린 도포제 처리에 의한 '신고'배의 과대지와 과실생장 변화

  • Choi, Jin-Ho (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Park, Yeon-Ok (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Choi, Jang-Jeon (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Kim, Myung-Su (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Yim, Sun-Hee (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Lee, Han-Chan (Pear Research Station, National Institute of Horticultural & Herbal Science)
  • 최진호 (국립원예특작과학원 배시험장) ;
  • 박연옥 (국립원예특작과학원 배시험장) ;
  • 최장전 (국립원예특작과학원 배시험장) ;
  • 김명수 (국립원예특작과학원 배시험장) ;
  • 임순희 (국립원예특작과학원 배시험장) ;
  • 이한찬 (국립원예특작과학원 배시험장)
  • Received : 2010.12.29
  • Accepted : 2011.06.24
  • Published : 2011.08.30
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Abstract

The object of this study was to evaluate the effect of gibberellins (GA) pasting on the bourse shoot, and not just on the fruit characteristics but also on the quality, of Niitaka pear (Pyrus pyryfolia L). The fruit stalk was treated with GA (control, 25mg/fruit stalk) 35 days after reaching full bloom. In the GA-treated tree, the occurrence of abnormal bourse shoot (52.5%) increased, and the spur bud and flower number decreased. The diameter of the GA-paste-treated fruit increased during the pear growth period with GA treatment. The diameter, length, and weight of the GA-paste-treated fruit increased at harvest time, but the hardness was lower than that of the control. The differences in soluble solid, acidity, and fruit color between the control and the GA-paste-treated fruit were not significant. Post-harvest, during the storage period, the hardness of the GA-paste-treated fruit was lower than that of the control, and its weight loss ratio was higher than that of the control on the $60^{th}$ days of storage.

본 연구는 '신고'배의 재배과정에서 만개 후 35일에 GA 도포제를 처리하여 발생하는 과대지의 변화와 과실특성 및 품질변화의 양상을 구명하고자 수행하였다. 이상발육 과대지의 발생률은 GA 도포제 무처리군 27.5%, 25 mg 처리군 52.5%로 유의한 차이를 나타냈고, 과대지수와 꽃 수는 이상발육 과대지에서 감소하였다. GA 도포제 처리 후 배생육기간 동안 GA 도포제 25 mg 처리군의 과실비대량이 무처리군에 비해 유의적으로 증가하였다. 또한 수확기 과실의 당도, 산도, 과피색은 두 군간에 차이가 없었으나 경도는 감소하였으며 과중과 바람들이 발생률은 무처리에 비하여 GA 도포제 25 mg 처리군이 유의적으로 증가하였다. 수확 후 저장기간 동안 GA 도포제 25mg 처리 과실의 경도는 무처리보다 유의적으로 낮아졌으며 중량 감모율은 저장 후 60일에 유의적으로 증가하였다.

Keywords

Acknowledgement

Supported by : 농촌진흥청

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