Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Effect of Spring Potato Cultivation Period on Growth, Yield and Processing Quality of Autumn Potato Cultivars

봄감자 재배기간이 가을감자 품종의 생육, 수량 및 가공품질에 미치는 영향

  • Gyu Bin Lee (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Jang Gyu Choi (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Do Hee Kwon (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Jae Youn Yi (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Hee Tae Lee (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Yong Ik Jin (Highland Agriculture Research Institute, National Institute of Crop Science, Rural Development Administration)
  • 이규빈 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 최장규 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 권도희 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 이재연 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 이희태 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 진용익 (농촌진흥청 국립식량과학원 고령지농업연구소)
  • Received : 2023.11.14
  • Accepted : 2024.03.11
  • Published : 2024.04.01
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Abstract

In Korea, potatoes have served as a side dish, but their role as snacks, such as chips or French fries, has recently gained traction. While there is a high demand for processing potatoes, there remains a dearth of research on the impact of double cropping, particularly during autumn, on processing quality. Therefore, this study was conducted to determine the effects of different spring potato cultivation periods on growth, yield, and processing quality during autumn cultivation. Following spring planting, harvest was carried out four times: 70 days, 80 days, 90 days, and 100 days. Subsequently, autumn cultivation was carried out in Gangneung and Seocheon regions using these seed potatoes. Results showed an increase in above-ground emergence rate with shorter spring growing period. When seed potatoes with a spring cultivation period of 80 and 90 days were grown in the autumn in the Gangneung region, the stem length was 47.2 to 48.9, which was greater than that of other treatments. However, stem number and leaf color (SPAD) showed no significant differences across cultivation periods. The number of tubers, tuber weight, yield, and marketable yield did not vary significantly with cultivation periods but described clear cultivar dependent differences. The tuber weight of the Saebong cultivar in Gangneung and the Eunseon cultivar in Seocheon was superior. The starch content peaked at 7.9% when seed potatoes grown for 80 days in the spring were harvested after autumn cultivation in the Gangneung region, but there was no significant differences in the Seocheon region. Glucose content showed a clear difference depending on the cultivation period, increasing with longer spring cultivation period during autumn cultivation. In conclusion, as a result of the effect of the spring potato cultivation period on the growth, yield, and processing quality of tubers when cultivating potatoes in double-cropping, the differences depending on the cultivation period were insignificant, while cultivar-based disparities were pronounced. The Eunseon cultivar exhibited robust above-ground growth and yield, while the Saebong cultivar demonstrated excellent processing quality.

국내에서 감자는 주로 반찬이나 부식으로 이용해 왔지만 최근에는 칩이나 프렌치프라이 등 스낵이나 간식으로 이용이 증가하고 있다. 가공원료용 생감자를 사용하여 감자를 가공하는 것에 대한 수요는 높지만 감자를 2기작으로 특히 가을에 재배하였을때 가공품질이 어떻게 달라지는 지에 대한 연구는 부족한 실정이다. 따라서 본 연구는 봄감자 재배기간을 달리하여 가을감자를 재배하였을 때 생육과 수량 및 가공품질에 미치는 영향을 구명하고자 수행하였다. 봄감자 파종 후 수확을 70일, 80일, 90일, 100일 총 4번에 거쳐 하였으며, 이를 활용하여 각각 강릉과 서천 지역에서 가을재배를 수행하였다. 지상부 출현율은 봄감자 재배기간이 짧은 씨감자를 가을재배 했을 때 높아지는 경향이었다. 경장은 봄재배 기간이 80일 및 90일인 씨감자를 강릉 지역에서 가을재배했을 때 47.2~48.9로 다른 처리에 비해 컸다. 재배기간에 따른 경수와 엽색은 통계적 유의성이 없었다. 수확시기에 따라 괴경수, 괴경무게, 수량 및 상서수량은 통계적 유의성이 없었으며 품종에 따른 차이는 뚜렷하게 나타났다. 괴경 무게는 강릉에서는 새봉 품종이, 서천에서는 은선 품종이 우수하였다. 전분 함량은 봄에 80일간 재배한 씨감자를 강릉 지역에서 가을재배 했을 때 7.9%로 함량이 높았으며, 서천 지역에서는 유의성이 나타나지 않았다. Glucose 함량은 재배기간에 따라 뚜렷한 차이를 보였는데, 봄감자 재배기간이 긴 씨감자를 가을재배에 이용할 경우 그 함량이 높아졌다. 감자를 2기작으로 재배 시 봄감자 재배기간이 괴경의 생육, 수량 및 가공품질에 미치는 영향에 대해 연구한 결과, 재배기간에 따른 차이는 크지 않았고, 품종에 따른 차이가 뚜렷하였다. 은선 품종은 가을재배 시 지상부 생육 및 수량이 뛰어났고, 가공품질은 새봉 품종이 우수하였다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 국립식량과학원 작물시험연구사업(연구과제: 칩가공용 가을감자 안정 생산 및 실용화 연구, 과제번호: PJ016774012024)의 지원에 의해 이루어진 결과로 이에 감사드립니다.

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