Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Physiological properties of grape cluster portions between cultivars and the effect of postharvest cooling on the marketability

포도 품종간 송이 부위별 생리적 특성과 수확 후 냉각과 유통성 관계

  • Min, Jeong-Ho (Department of Horticultural Science, College of Agriculture and Life Science, Chungnam National University) ;
  • Lim, Byung-Seon (Fruit Research Div., National Institute of Horticultural & Herbal Science, RDA) ;
  • Choi, Yeon-Soo (Department of Horticultural Science, College of Agriculture and Life Science, Chungnam National University) ;
  • Lee, Kyung-Min (Department of Horticultural Science, College of Agriculture and Life Science, Chungnam National University) ;
  • Kim, Dal-Woo (Department of Horticultural Science, College of Agriculture and Life Science, Chungnam National University) ;
  • Hwang, Yong-Soo (Department of Horticultural Science, College of Agriculture and Life Science, Chungnam National University)
  • 민정호 (충남대학교 농업생명과학대학 원예학과) ;
  • 임병선 (국립원예특작과학원 원예작물부 과수과) ;
  • 최윤수 (충남대학교 농업생명과학대학 원예학과) ;
  • 이경민 (충남대학교 농업생명과학대학 원예학과) ;
  • 김달우 (충남대학교 농업생명과학대학 원예학과) ;
  • 황용수 (충남대학교 농업생명과학대학 원예학과)
  • Received : 2011.12.26
  • Accepted : 2012.03.23
  • Published : 2012.03.31
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Abstract

Rapid loss of grape berry quality after harvest occurs due to poor postharvest management. Understanding physiological properties between cultivars is required to develop practical technologies to control fast quality deterioration of tables grapes. Physiological characteristics of whole cluster, rachis and berries were examined to find their effects on postharvest behaviour of table grapes. 'Tamnara' showed high respiration rate and browning of rachis compared to 'Campbell Early'. Weight loss of rachis of 'Cheongsoo' was highest of three cultivars. Berry decay in 'Cheongsoo' begins at the connection portion between peduncle and berry, and berry decay of 'Cheongsoo' was the most severe among three cultivars. Precooling at $0^{\circ}C$ showed better results than cooling at $10^{\circ}C$ regardless of cultivars but cooling effect decreased when simulated marketing period increased up to 10 days. Plastic film wrapping was effective on reducing decay in general but not at higher marketing temperature. For successful commercialization of newly developed grapes, the inhibition technology of rachis browning in 'Tamnara' is required and decay control in 'Cheongsoo' through establishment of cold chain system is recommended.

Keywords

References

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