Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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The effects of Stigma Removal and Auxin Treatment on Fruit Shape and Quality in Strawberry

딸기의 주두 제거와 옥신 처리가 딸기의 과형 및 품질에 미치는 영향

  • Lee, Jung-Eun (Development of Horticultural Bioscience, Pusan National University) ;
  • Lee, Gyu-Bin (Development of Horticultural Bioscience, Pusan National University) ;
  • Je, Byoung-Il (Development of Horticultural Bioscience, Pusan National University) ;
  • Lee, Yong-Jae (Development of Horticultural Bioscience, Pusan National University) ;
  • Park, Young-Hoon (Development of Horticultural Bioscience, Pusan National University) ;
  • Choi, Young-Whan (Development of Horticultural Bioscience, Pusan National University) ;
  • Son, Beung-Gu (Development of Horticultural Bioscience, Pusan National University) ;
  • Kang, Nam-Jun (Department of Horticulture, Gyeongsang National University) ;
  • Kang, Jum-Soon (Development of Horticultural Bioscience, Pusan National University)
  • 이정은 (부산대학교 원예생명과학과) ;
  • 이규빈 (부산대학교 원예생명과학과) ;
  • 제병일 (부산대학교 원예생명과학과) ;
  • 이용재 (부산대학교 원예생명과학과) ;
  • 박영훈 (부산대학교 원예생명과학과) ;
  • 최영환 (부산대학교 원예생명과학과) ;
  • 손병구 (부산대학교 원예생명과학과) ;
  • 강남준 (경상대학교 원예학과) ;
  • 강점순 (부산대학교 원예생명과학과)
  • Received : 2018.12.28
  • Accepted : 2019.01.11
  • Published : 2019.01.31
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Abstract

The effects of stigma removal from floral organ and treatment of auxin on those regions were evaluated on the fruit growth and quality in strawberry (Fragaria ananassa Duch.). The removal of stigma reduced the fruit weight, fruit length, and fruit width, while fruit growth declined as the number of removed stigma increased. The removal of stigma also resulted in reduced fruit firmness, sugar content, and total anthocyanin content, and decreased value of Hunter a for red color and increased value of Hunter b for yellow. The number of seeds deceased as the regions of removed stigma increased. The treatment of auxin on the region of removed stigma improved fruit size, while it reduced fruit firmness, sugar content, and anthocyanin content. The delay in fruit ripening was observed from both stigma removal and auxin treatment. The incidence of malformed fruits increased as the regions with removed stigma increased. The treatment of auxin also promoted fruit malformation.

본 연구는 딸기의 화기에서 주두를 제거하고 주두를 제거한 부위에 옥신제인 토마토톤을 처리하여 과실의 생육 및 품질을 검토하였다. 화기에서 주두를 제거함으로써 과중, 과장, 과폭이 낮아졌으며, 주두를 제거하는 부위가 많을수록 과실의 생육이 저하되었다. 또한 화기에서 주두를 제거하면 과실의 경도와 당도가 낮아졌다. 딸기에서 주두를 제거하면 붉은색을 나타내는 Hunter a값이 낮아지고 황색을 띄는 b값이 높아졌으며, 과실의 총 안토시아닌 함량도 감소하였다. 또한 주두를 제거하는 부위가 많을수록 과실당 종자수가 감소하였다. 주두를 제거한 부위에 옥신제인 토마토톤을 처리하면 과실의 크기가 커졌다. 반면 토마토톤을 처리는 대조구에 비해 과실의 경도, 당도 및 안토시아닌 함량은 낮아졌다. 딸기에서 주두를 제거하거나 토마토톤을 처리함으로써 과실의 숙성이 지연되었다. 또한 제거하는 주두부위가 많을수록 기형과가 증가하였고, 토마토톤 처리에 의해서도 기형과 발생율은 증가하였다. 따라서 딸기에서 토마토톤 사용은 과실의 크기를 증가시키지만 숙성을 지연시키고 기형과 발생률을 증가시켰다.

Keywords

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