Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Fruit Characteristics of the Secondary Bearing Shoots of Blueberry 'Scintilla' Grown in a Heated Greenhouse

가온 하우스 재배 블루베리 '신틸라'에 있어서 2차 결과지의 과실 특성

  • Mi Geon Cheon (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Kyung Mi Park (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Sang Woo Choi (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Seong-Tae Choi (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Hye Suk Yoon (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Weong Gwang Kim (Research and Development Bureau, Gyeongsangnamdo Agricultural Research & Extension Services) ;
  • Jin Gook Kim (Division of Horticultural Science, College of Agriculture and Life Science, Gyeongsang National University)
  • 천미건 (경남농업기술원 연구개발국) ;
  • 박경미 (경남농업기술원 연구개발국) ;
  • 최상우 (경남농업기술원 연구개발국) ;
  • 최성태 (경남농업기술원 연구개발국) ;
  • 윤혜숙 (경남농업기술원 연구개발국) ;
  • 김영광 (경남농업기술원 연구개발국) ;
  • 김진국 (경상국립대학교 농업생명과학대학 원예과학부)
  • Received : 2023.10.04
  • Accepted : 2023.10.18
  • Published : 2023.10.31
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Abstract

This study examines the characteristics of berries from secondary bearing shoots of 'Scintilla' southern highbush blueberry, grown hydroponically in the Jinju, Gimhae, and Uiryeong regions of Gyeongnam Province. Typically, 'Scintilla' forms flower buds at the tips of regular bearing shoots during the previous season, yielding berries in the current season. However, under heated cultivation, we observed a proliferation of secondary bearing shoots that produce berries in the same growing season. Flowering and harvesting on secondary bearing shoots were delayed by 52 and 36 days, respectively, compared to regular bearing shoots. However, these shoots exhibited a 54% increase in diameter and a 10% increase in length. We found no significant difference in berry size and soluble solid content between the two types of shoots. Notably, berries from the secondary bearing shoots had higher potassium and lower calcium and magnesium concentrations. We conclude that berries from secondary bearing shoots could be marketable, provided the bushes are healthy. These findings provide valuable insights for optimizing cultural practices to improve the yield and quality of blueberries under specific environmental conditions.

본 연구는 경상남도 진주, 김해, 의령에 위치한 가온시설하우스에서 양액재배로 관리되는 '신틸라' 남부하이부시 블루베리의 2차 결과지의 과실 특성을 분석하였다. 일반적으로 '신틸라'는 전년도에 자란 가지의 선단에서 착과가 이루어지지만, 가온재배 환경에서는 당해년도에 자라난 가지의 선단에서도 꽃이 피고 열매를 맺는 현상이 발견되었다. 연구 결과, 2차 결과지에서의 개화와 수확은 정상 결과지에 비해 각각52일, 36일 지연되었으나, 6월 중순 기준으로 2차 결과지의 신초경과 신초장은 정상 결과지보다 각각54%, 10% 증가하는 것으로 나타났다. 두 결과지 유형 간에 과실 크기와 가용성 고형물함량에서는 유의미한 차이를 보이지 않았다. 그러나 2차 결과지의 과실은 칼륨 농도가 더 높고, 칼슘과 마그네슘 농도는 더 낮게 조사되었다. 이러한 결과로 수세가 양호한 나무에서는 2차 결과지의 과실 상품화가 가능할 것으로 판단되었다.

Keywords

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