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2024 Vol.33, Issue 4 Preview Page

Original Articles

Influence of Light, Temperature, and Irrigation on Grafted Cucumber Seedlings in Biodegradable Paper Pots

생분해성 종이포트 육묘시 광량, 온도 및 관수가 오이 접목묘의 생육에 미치는 영향

Seung Hwan Wi1
,
Kyung Hwan Yeo1
,
Tae Cheol Seo2
,
Hee Ju Lee2
,
Hyejin Lee1
,
Sewoong An13
,
Yoonah Jang24*
위 승환1
,
여 경환1
,
서 태철2
,
이 희주2
,
이 혜진1
,
안 세웅13
,
장 윤아24*
1Researcher, National Institute of Horticultural and Herbal Science, RDA, Wanju-gun 55365, Korea
2Senior Researcher, National Institute of Horticultural and Herbal Science, RDA, Wanju-gun 55365, Korea
3Assistant Professor, Korea National University of Agriculture and Fisheries, Jeonju-si 54874, Korea
4Seconded Scientist, World Vegetable Center, Shanhua, Tainan 74151, Taiwan
1농촌진흥청 국립원예특작과학원 농업연구사
2농촌진흥청 국립원예특작과학원 농업연구관
3국립농수산대학교 조교수
4세계채소센터 상주연구원
*Corresponding Author
31 October 2024. pp. 280-293
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Abstract

This study examined the effects of light intensity, night temperature, and irrigation frequency on the growth of grafted cucumber seedlings in biodegradable paper pots compared with conventional plug trays. The experiment was conducted over two seasons (summer and autumn) using eight treatments that combined two shading levels (75% shading and no shading), two night temperatures (15°C in a growth chamber and ambient greenhouse temperature), and two irrigation frequencies (once or twice daily). In summer, the average daily light integral (DLI) was 21.3 mol·m-2·day-1 with a mean temperature of 26.2°C, while in autumn, the DLI was 5.3 mol·m-2·day-1 with a mean temperature of 22.0°C. Grafted cucumber seedlings grown in paper pots showed higher sensitivity to changes in light intensity and temperature compared to those grown in plug trays. Paper pot seedlings exhibited greater uniformity among individuals than plug tray seedlings. Although paper pot seedlings had slightly shorter shoot lengths and lower total dry mass than plug tray seedlings, their root dry mass was comparable or greater. Under low light conditions, a night temperature of 15°C effectively suppressed stem elongation. Biodegradable paper pots can be considered a promising alternative to conventional plug trays for grafted cucumber seedling production, particularly demonstrating advantages in producing uniform seedlings and promoting superior root system development. However, the use of paper pots requires more precise environmental management, especially regarding light intensity and irrigation control.

Keywords
daily light integral (DLI)
dickson quality index (DQI)
environmental factor
seedling quality
uniformity

본 연구는 생분해성 종이포트와 기존 플러그 트레이에서 오이 접목묘 육묘시 광량, 야간 온도, 관수 빈도가 생육에 미치는 영향을 조사하였다. 실험은 여름과 가을 두 계절에 걸쳐 수행되었으며, 차광 수준(75% 차광 및 무차광), 야간 온도(생장상 이용 15°C 처리 및 온실 온도), 관수 빈도(1일 1회 또는 2회)를 조합한 8가지 처리 조건에서 오이 접목묘를 육묘하였다. 여름철 평균 일 적산광량(daily light integral, DLI)은 21.3 mol·m-2·day-1, 평균 기온은 26.2°C이었으며, 가을철 DLI는 5.3 mol·m-2·day-1, 평균 기온은 22.0°C이었다. 종이포트에서 육묘한 오이 접목묘는 플러그 트레이 묘에 비해 광량과 온도 변화에 더 민감하게 반응하였으나, 개체간 균일도가 높았다. 종이포트 묘는 플러그 트레이 묘에 비해 초장과 총 건물중이 다소 작았으나, 뿌리 건물중은 유사하거나 더 큰 결과를 나타냈다. 특히, 저광도 조건에서 15°C의 야간 온도는 줄기 신장을 효과적으로 억제하였다. 생분해성 종이포트는 오이 접목묘 생산에 있어 관행의 플러그 트레이의 대안으로 고려될 수 있으며, 특히 균일한 묘 생산과 우수한 근계 발달에 장점을 보였다. 종이포트를 이용한 육묘시 광량 등 환경에 민감하게 반응하므로, 보다 정밀한 환경 관리, 특히 광량과 관수 관리에 있어 주의가 요구된다.

키워드
균일도
묘 품질
일 적산광량(Daily light integral, DLI)
환경요인
Dickson quality index (DQI)
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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 : 33
  • No :4
  • Pages :280-293
  • Received Date : 2024-08-09
  • Revised Date : 2024-10-03
  • Accepted Date : 2024-10-07
  • DOI :https://doi.org/10.12791/KSBEC.2024.33.4.280
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