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2025 Vol.34, Issue 2 Preview Page

Original Articles

Growth and Quality of Grafted Watermelon Seedlings Under Controlled Light Intensity in a Plant Factory Nursery System

식물공장형 육묘시스템에서 광도 조절에 따른 수박 접목묘의 생육 및 품질

Yoon Go1†
,
Se Hun Ju2†
,
Eun Ji Kim2
,
Young Je Kim1
,
Beom Seon Lee3
,
Haeyoung Na4*
고 윤1†
,
주 세훈2†
,
김 은지2
,
김 영제1
,
이 범선3
,
나 해영4*
1Graduate Student, Department of Horticultural Science, Graduate School of Mokpo National University, Muan 58554, Korea
2Graduate Student, Interdisciplinary Program of Development and Utilization of Biological Resources, Graduate School of Mokpo National University, Muan 58554, Korea
3Professor, Department of Horticulture, School of Green Smart Farm, Sunchon National University, Sunchon 57922, Korea
4Professor, Department of Horticulture and Forestry, College of Life and Medical Sciences, Mokpo National University, Muan 58554, Korea
1국립목포대학교 일반대학원 원예학과 대학원생
2국립목포대학교 일반대학원 생명자원개발이용학협동과정 대학원생
3국립순천대학교 그린스마트팜스쿨 원예학과 교수
4국립목포대학교 생명･의과학대학 원예산림학부 교수
*Corresponding Author
†These authors contributed equally to this work.
30 April 2025. pp. 154-161
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Abstract

This study was conducted to evaluate the growth and quality of grafted watermelon seedlings under different controlled light intensities in a plant factory nursery system. The watermelon scion cultivars were used ‘BravoKkul (BK)’ for the high-temperature season and ‘SantaKkul (SK)’ for the low-temperature season. For rootstocks, ‘BullojangSaeng (BS)’ was used for the high-temperature season and ‘DongjangGun (DG)’ for the low-temperature season. Light intensity treatments were applied 125 ± 25, 225 ± 25, and 325 ± 25 µmol·m-2·s-1. The highest plant height was observed at 125 ± 25 µmol·m-2·s-1 for the high-temperature season grafted seedlings (BK+BS) and at 225 ± 25 µmol·m-2·s-1 for the low- temperature season grafted seedlings (SK+DG). Both BK+BS and SK+DG seedlings showed the largest stem diameter and highest number of nodes at 225 ± 25 µmol·m-2·s-1. Root length and leaf area were greatest at 325 ± 25 µmol·m-2·s-1 for BK+BS and at 225 ± 25 µmol·m-2·s-1 for SK+DG. Shoot and root fresh and dry weights were highest at 225 ± 25 µmol·m-2·s-1 during both high- and low-temperature seasons. The compactness of seedlings increased with higher light intensities in both cultivars, particularly noticeable in BK+BS. Leaf area ratio (LAR) significantly increased with increasing light intensity in BK+BS but showed no significant difference in SK+DG. Overall, the growth characteristics were optimal at 225 ± 25 µmol·m-2·s-1, although considering seedling quality, more robust seedlings were produced at 325 ± 25 µmol·m-2·s-1.

Keywords
grafting
photosynthetic photon flux density
rootstock
scion
seedling quality

본 연구는 식물공장형 육묘시스템에서 광도 조절에 따른 수박 접목묘의 생육 및 품질을 평가하기 위해 수행되었다. 수박 접수는 고온기 품종 ‘부라보꿀(BK)’, 저온기 품종 ‘산타꿀(SK)’을 사용하였고, 대목으로 고온기 품종 ‘불로장생(BS)’, 저온기 품종 ‘동장군(DG)’을 사용하였다. 광도는 125 ± 25, 225 ± 25 및 325 ± 25µmol·m-2·s-1 3처리로 조정하여 실험을 진행하였다. 초장은 고온기 접목묘가 125 ± 25µmol·m-2·s-1, 저온기 접목묘가 225 ± 25µmol·m-2·s-1에서 가장 높았고, 줄기 직경과 마디수는 고온기 접목묘, 저온기 접목묘 모두 225 ± 25µmol·m-2·s-1에서 가장 높았다. 근장과 엽면적은 고온기 접목묘에서 325 ± 25µmol·m-2·s-1, 저온기 접목묘는 225 ± 25 µmol·m-2·s-1에서 가장 높았다. 또한 지상부 및 지하부 생체중과 건물중은 225 ± 25µmol·m-2·s-1 처리에서 가장 높게 나타났다. 충실도는 두 품종 모두 광도가 증가함에 따라 높아졌으며, 특히 고온기 접목묘에서 그 효과가 두드러졌다. 엽면적비(LAR)는 고온기 접목묘에서 광도 증가와 함께 유의하게 증가하였으나, 저온기 접목묘에서 유의한 차이가 없었다. 종합적으로 생육 특성은 225 ± 25µmol·m-2·s-1에서 높았으나, 묘소질을 고려했을 때 325 ± 25µmol·m-2·s-1에서 더욱 강건한 묘가 형성된 것으로 판단된다.

키워드
광합성유효광량자속밀도
대목
묘소질
접목
접수
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Journal of Bio-Environment Control
  • Journal Title(Ko) :생물환경조절학회지
  • Volume : 34
  • No :2
  • Pages :154-161
  • Received Date : 2025-03-24
  • Accepted Date : 2025-03-25
  • DOI :https://doi.org/10.12791/KSBEC.2025.34.2.154
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