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Seedling Quality and Photosynthetic Characteristic of Vegetables Grown Under a Spectrum Conversion Film

광전환 필름 피복에 따른 채소류의 묘소질 및 광합성 특성

  • Yoon, Hyo In (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Kang, Jun Hyeun (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Kim, Doyeon (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Son, Jung Eek (Research Institute of Agriculture and Life Sciences, Seoul National University)
  • 윤효인 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 강준현 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 김도연 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 손정익 (서울대학교 농업생명과학연구원)
  • Received : 2021.03.22
  • Accepted : 2021.04.12
  • Published : 2021.04.30

Abstract

This study aims to investigate the effect of spectrum conversion film on seedling quality and photosynthetic traits of leaf and fruit vegetables. Lettuce, Chinese cabbage, and cucumber seeds were sown in 50-cell plug trays filled with commercial seedling media and grown under a spectrum conversion film (SCF) and a poly-ethylene film as a control. The SCF decreased blue-green light and increased red light, and thereby increased the R/FR ratio and R/B ratio of solar spectrum, which was sufficient to affect the photosynthesis, growth, and morphogenesis of the seedlings. The photosynthetic rates of Chinese cabbage and cucumber were significantly increased under the SCF, and their maximum photosynthetic rates were 23% and 19%, respectively. However, the growth of lettuce was decreased under the SCF, and the plant height and leaf length became longer, resulting in a decrease in seedling quality. Although the morphology of Chinese cabbage grown under the SCF was not changed compared to the control, the leaf dry weight increased and its dwarf rate was 10%. The growth of cucumber under the SCF was similar to that of the control, but the plant height and petiole were significantly reduced, resulting in a high dwarf rate of 24%. It was concluded that the solar spectrum modified by the SCF increased the photosynthetic efficiency and improved the seedling quality of Chinese cabbage and cucumber.

본 연구는 광전환필름에 의해 변형된 태양광 하에서 채소류의 묘소질과 광합성 특성에 미치는 영향을 구명하기위해 수행되었다. 상추와 배추, 오이 종자를 원예용 상토로 충진된 50구 플러그 트레이에 파종하고, 광전환 필름(SCF)과 상업용 폴리에틸렌 필름(대조군) 하에서 재배하였다. 대조군 대비 SCF에 투과된 태양광 스펙트럼은 청-녹색광은 감소하고, 적색광은 증가했으며 R/FR 비와 R/B 비가 증가하여 묘의 광합성과 생육, 형태형성 측면에서 영향을 미치기에 충분한 수준이었다. 광합성속도는 SCF 하에서 자란 배추와 오이 묘에서 유의적으로 증가했으며, 최대 광합성속도는 각각 23%, 19% 높게 나타났다. 상추의 경우, SCF 처리구에서 생육이 유의적으로 감소하였으며 도장하였다. SCF 필름 하에서 자란 배추의 경우, 형태적인 차이는 없었으나 잎의 건물중이 증가하여 묘의 충실도가 유의적으로 증가했고 왜화율은 10%로 나타났다. SCF 처리구의 오이 묘는 생육에 차이는 없었으나 엽병 및 초장이 유의적으로 감소하여 왜화율이 24%로 높게 나타났다. 결론적으로 SCF에 의해 변형된 태양광 스펙트럼은 배추와 오이 묘의 광합성 효율을 증가시키고 묘소질을 향상시켰다고 판단되었다.

Keywords

References

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