The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
권호 표지
DOI QR코드

DOI QR Code

Comparative Analysis of Lighting Intensity, Leaf Temperature, Transpiration Rate, and Vapor Pressure Deficit between the Top and Branching Point of Stem during Growing Period of Paprika Plant

파프리카 생장에 따른 줄기의 정부와 하부 간 광량, 엽온, 증산속도 및 수증기압포차 비교 분석

  • 우승미 (원광대학교 일반대학원 원예학과) ;
  • 김호철 (원광대학교 원예산업학과)
  • Received : 2023.10.05
  • Accepted : 2023.11.10
  • Published : 2023.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

As paprika plants grew in a glass greenhouse from November 2022 to March 2023, the amount of light at each plant height, leaf temperature, transpiration rate, and water vapor pressure were measured. Accumulated leaf temperature was higher at the top of the plant than at the bottom. Over time, the leaf temperature measured around 11-13 AM changed from 26.55→23.21→22.80→26.67℃ in the lower part (pL), and from 26.52→24.48→24.55→27.78℃ in the upper part (pAs). And VPD changed from 1.45→0.94→0.74→1.46kPa in pL and from 1.11→0.86→0.71→1.28kPa in pAs. Accordingly, the transpiration rate changed from 4.25→0.17→4.08→0.52mmol·m-2·s-1 in pL, 7.61→2.45→1.94→4.39→0.52mmol·m-2·s-1 in pAs, and from pAs to pL. It was significantly higher than The difference between the lower and upper parts (pL-pAs) was higher in pAs than pL in leaf temperature, light intensity, and transpiration rate, but the water vapor pressure difference was higher in pL. In this way, paprika shows differences in the environment and photosynthetic factors between the upper and lower parts during the cultivation period, so it is judged that this needs to be taken into consideration in future research.

2022년 11월부터 2023년 3월까지 유리온실에서 파프리카 식물체가 생육함에 따라 식물체 높이별 광량, 엽온, 증산속도, 수증기압포차를 측정하였다. 적산된 엽온은 식물체 정부에서 하부보다 높았다. 시간이 지남에 따라 오전 11-13시경 측정된 엽온은 하부(pL)에서 26.55→23.21→22.80→26.67℃로 변화하였고, 상부(pAs)에서는 26.52→24.48→24.55→27.78℃로 변화하였다. 그리고 VPD는 pL에서 1.45→0.94→0.74→1.46kPa, pAs에서는 1.11→0.86→0.71→1.28kPa로 변화하였다. 이에 따른 증산속도는 pL에서는 4.25→0.17→4.08→0.52mmol·m-2·s-1, pAs에서 7.61→2.45→1.94→4.39→0.52mmol·m-2·s-1로 변화하였고, pAs에서 pL보다 상당히 높았다. 하부와 상부 차이(pL-pAs)는 엽온, 광량, 증산속도에서는 pL보다 pAs에서 더 높았으나 수증기압포차는 pL에서 더 높았다. 이와 같이 파프리카는 재배기간 중 상부와 하부 간 환경과 이에 따른 광합성 요소가 차이를 나타내어 향후의 연구에서는 이에 대한 고려가 필요할 것으로 판단된다.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부 및 정보통신기획평가원 연구사업의 지원에 의해 이루어진 것임 (과제번호: 2022-0-00597)

References

  1. Korea agriculture trade information (KaTi) (2022) Korea agriculture trade information. https://www.kati.net/statistics/monthlyPerformanceByProduct.do Accessed 1 July 2022
  2. Adams SR, Cockshull KE, Cave CRJ (2001) Effect of temperature on the growth and development of tomato fruits. Ann Bot 88:869-877. doi:10.1006/anbo.2001.1524
  3. Lee JW, Kim HC, Jeong PH, Ku YG, Bae JH (2014) Effects of supplemental lighting of high pressure sodium and lighting emittitng plasma on growth and productivity of Paprika during low radiation period of winter season. Korean J Hortic Sci Technol 32:346-352. doi:10.7235/hort.2014.14029
  4. Kim EJ, Park KS, Goo HW, Park GE, Myung DJ, Jeon YH, Na HY (2021) Effect of cooling in a semi-closed greenhouse at high temperature on the growth and photosynthesis characteristics in Paprika. J Bio-Environ Control 30:335-341. doi:10.12791/KSBEC.2021.30.4
  5. Shimadzu, S., Seo, M., Terashima, I., Yamori, W. (2019) Whole irradiated plant leaves showed faster photosynthetic induction than individually irradiated leaves via improved stomatal opening. Front Plant Sci 28: 1-10. doi: 10.3389/fpls.2019.01512
  6. Lurie. S. (1978) The effect of wavelength of light on stomatal opening. Planta 140:245-249. doi:10.1007/BF00390255
  7. Mittler, R., Blumwald, E. ( 2010), Genetic engineering for modern agriculture: challenges and perspectives. Annu Rev Plant Biol 61:443-462. doi:10.1146/annurev-arplant-042809-112116
  8. Rajametov, S.N., Yang, E.Y., Cho, M.C., Chae, S.Y., . Jeong, H.B., Chae W.B. (2021) Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition. Sci Rep 11:14328. doi:10.1038/s41598-021-93697-5
  9. Tai, N.H., Park, J.S., Ahn, T.I., Lee, J.H., Myoung, D.J., Cho, Y.Y., Son, J.E. (2010) Analysis of relationship among growth, environmental factors and transpiration in soilless culture of paprika plants. Kor J Hort Sci Technol 28:59-64
  10. Woo, S.M., Kim, G.Y., Lim, H.H., Jeong, J.H., Cho, S.H., Ahn, B.K., Lee, E.Y., Bae, J.H., Kim, H.C. (2022) Growth environmental factors and fruit enlargement of seedless watermelon according to directions of single-span greenhouse. Hor Sci Tech 40: :525-538 https://doi.org/10.7235/HORT.20220047