한국농림기상학회지 (Korean Journal of Agricultural and Forest Meteorology)

  • 제26권2호
  • /
  • Pages.103-113
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  • 2024
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  • 1229-5671(pISSN)
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  • 2288-1859(eISSN)
한국농림기상학회 (Korean Society of Agricultural and Forest Meteorology)
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남부지역 논에서 수확시기별 봄감자의 생육 특성 및 괴경 상품성의 변화

Change in Growth and Tuber Quality as Influenced by Harvesting Time of Spring Potato (Solanum tuberosum L.) in the Southern Paddy Field

  • 오서영 (국립식량과학원 남부작물부 논이용작물과) ;
  • 김성훈 (국립식량과학원 남부작물부 논이용작물과) ;
  • 최지수 (국립식량과학원 남부작물부 논이용작물과)
  • Seo Young Oh (Paddy Crop Research Division, Department of Southern Area Crop Science, National Institute of Crop Science) ;
  • Sung Hoon Kim (Paddy Crop Research Division, Department of Southern Area Crop Science, National Institute of Crop Science) ;
  • Jisu Choi (Paddy Crop Research Division, Department of Southern Area Crop Science, National Institute of Crop Science)
  • 투고 : 2024.03.06
  • 심사 : 2024.05.13
  • 발행 : 2024.06.30
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초록

남부지역 논에서 봄감자를 재배하고 수확시기를 달리하여 상서 수량과 괴경의 품질 분석 등을 통해 적정 수확시기를 제시하고자 하였다. 봄감자 수량은 개화 후 30-50일에 총수량, 상서수량 등이 최대에 도달하였으며, 상품성 있는 감자의 비율도 높았다. 기형서나 열개서 등 외부생리장해도 개화 후 40일까지는 발생하지 않았으나, 그 이후에는 일부 괴경에서 발아하는 등 2차 생장이 나타났다. 영양성분중에 탄수화물이 60% 이상으로 높고, 개화 후 50일까지는 유의미한 차이를 보이지 않았다. 그리고 조단백질 함량은 수확시기가 늦어짐에 따라 점차 낮아졌다. 괴경의 무기질 함량도 수확시기가 늦어짐에 따라 점차 감소하였으며, 개화 후 30-40일에 가장 낮았다. 따라서 남부지역 봄 감자 재배 시 수확적기는 고온이나 침수의 영향을 덜 받으면서 괴경 비대가 최대에 이르는 개화 후 30-40일인 것으로 판단된다.

The effect of harvesting time on the growth, marketable tuber yield, and tuber quality of spring potato (Solanum tuberosum L. cv. Dami) were analyzed in the southern paddy fields in order to determine the optimal harvesting time. At 30-50 days after flowering, the total and marketable tuber yields of spring potato reached their maxima and commercial tuber rate was also high. External defects such as tuber malformation or crack did not occur until 40 days after flowering, but after that, secondary growth such as shooting appeared. Among the nutrient compositions of tubers, carbohydrate content accounted for more than 60% of tuber dry weight without significant difference among harvesting times until 50 days after flowering. The crude protein content decreased slightly as the harvesting time was delayed. However, the mineral nutrient content of tubers decreased with delaying harvesting time and was lowest at 30-40 days after flowering. Therefore, the optimal harvesting time of spring potato was judged to be 30-40 days after flowering, when marketable tuber size and quality were great as less affected by high temperature or waterlogging under natural environmental conditions.

키워드

과제정보

본 연구는 농촌진흥청 어젠다사업(과제명: 남부지역 논의 녹두 연계 작부체계 기술 개발, 과제번호:PJ016827022023)의 지원에 의해 이루어진 결과로 이에 감사드립니다.

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