Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Growth Characteristics of Small and Medium Type Watermelon According to Number of Stem Training and Position of Fruit Setting in the Winter Season

겨울철 줄기유인 수 및 착과 위치에 따른 중·소과종 수박의 생육 특성

  • Kim, So-Hui (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Choi, Gyeong-Lee (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Choi, Su-Hyun (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Lim, Mi-Young (Protected Horticulture Research Institute, NIHHS, RDA) ;
  • Jeong, Ho-Jeong (Protected Horticulture Research Institute, NIHHS, RDA)
  • 김소희 (국립원예특작과학원 시설원예연구소) ;
  • 최경이 (국립원예특작과학원 시설원예연구소) ;
  • 최수현 (국립원예특작과학원 시설원예연구소) ;
  • 임미영 (국립원예특작과학원 시설원예연구소) ;
  • 정호정 (국립원예특작과학원 시설원예연구소)
  • Received : 2019.09.23
  • Accepted : 2020.01.29
  • Published : 2020.04.30
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Abstract

This research was carried out to find the proper number of stem training and position of fruit setting that can be stably produced for the cultivation in small and medium types of watermelon during winter. The treatments for the number of stem training were 2-, 3-, 4-stems, respectively. Growth characteristics (plant height, stem diameter, no. of node, etc.) by number of stem training were higher in 2-stem than in 3-4-stem. However, Fruit characteristics such as weight, length, width were high in the 4-stem. There is no significant difference between the soluble solids and fruit setting rate depending on the stem training. The position of fruit setting were three points: 2nd, 3rd, 4th female flower positions. The fruit setting is one fruit per plant. The average fruit setting nodes of 2nd, 3rd and 4th female flowers were 11.5, 15.8 and 23.1 nodes, respectively. The 4th female flower was 0.8 kg heavier than 2nd female flower because of its increased weight as position of fruit setting was higher. However, the soluble solids decreased as the position of fruit setting increased, with the second female flower being 1.3°Bx higher than the 4th female flower. The Fruit setting rate was no significant difference. Considering the growth and fruit characteristics, it is believed that the small and medium-sized watermelon in winter will have a high quality production of watermelon when the stem training is 3-stem and the position of fruit setting is 3rd female flower. However, it is thought that additional studies are needed to stabilize the income of watermelon-growing farms, such as planting distance and adhesion of small and medium-sized varieties.

겨울철 재배 시 중·소과종 수박의 안정적 생산을 위한 적정 줄기유인 수와 착과 위치를 구명하기 위하여 본 연구를 수행하였다. 줄기유인 수를 위한 시험은 아들줄기를 각각 2, 3, 4줄기로 달리하여 유인하였다. 줄기유인 수에 따른 초장, 경경, 마디수 등 생육특성은 3, 4줄기보다 2줄기에서 높은 결과를 보였다. 그러나 과중, 과고, 과폭 등 과실특성은 4줄기에서 높게 나타났다. 당도와 착과율은 줄기유인 수에 따라 유의한 차이가 없었다. 착과 위치를 위한 시험의 착과 위치는 2, 3, 4번째 암꽃으로 달리하였다. 착과 위치에 따른 암꽃의 평균 착과마디는 각각 11.5, 15.8, 23.1마디였다. 착과 위치가 높아질수록 과중이 증가하여 2번째 암꽃에 비해 4번째 암꽃이 0.8kg 무거웠다. 그러나 당도는 착과 위치가 증가할수록 감소하여, 2번째 암꽃이 4번째 암꽃에 비해 1.3°Bx 높았다. 생육과 과실 특성을 종합적으로 고려하였을 때, 겨울철 중·소과종 수박의 줄기유인 수는 3줄기, 착과 위치는 3번째 암꽃이 고품질의 수박의 생산을 위해 적합할 것으로 판단된다. 그러나 추후에 재식거리, 중·소과종 품종의 다착과 등 수박 재배 농가의 소득 안정을 위한 다양한 연구가 필요하다고 생각된다.

Keywords

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