Change of Internal Temperature and Humidity According to Kind of Covering Materials in Sweet Pepper's Greenhouse

착색단고추 재배 온실의 피복재 종류에 따른 내부 온.습도 변화

  • Kim, Ho-Cheol (Department of Horticulture and Pat-Plant Science, Wonkwang University) ;
  • Choi, Jun-Hyuk (Department of Horticulture and Pat-Plant Science, Wonkwang University) ;
  • Lee, Soo-Won (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Lee, Jeong-Hyun (Department of Horticulture & Plant Biotechnology, Chonnam National University) ;
  • Bae, Jong-Hyang (Department of Horticulture and Pat-Plant Science, Wonkwang University)
  • 김호철 (원광대학교 원예.애완동식물학부) ;
  • 최준혁 (원광대학교 원예.애완동식물학부) ;
  • 이수원 (국립산림과학원 산림생산기술연구소) ;
  • 이정현 (전남대학교 식물생명공학부) ;
  • 배종향 (원광대학교 원예.애완동식물학부)
  • Received : 2010.02.23
  • Accepted : 2010.03.05
  • Published : 2010.03.30

Abstract

This research was conducted to investigate difference of internal temperature, humidity, and plant growth according to covering materials in sweet pepper's greenhouse. For growing period, daily mean internal temperature was not different between glass (GH) and plastic film house (PH), but the changed volume was more PH than GH. Internal humidity deficit was more PH than GH as that was 4.3 $g{\cdot}m^{-2}$ and 5.6 $g{\cdot}m^{-2}$, respectively. In change of internal temperature effected by different intensity of external light, that of PH was fasted twice that of GH, and that's tendency was effected by difference of internal temperature for several hours after sunrise. Leaf growth and photosynthetic product were more GH than PH, productivity of GH was better 80 percents than PH. As results, To improve productivity in PH compared with productivity in GH need to be the detailed managements of internal environmental factors in early period after sunrise.

착색단고추가 재배되고 있는 유리 온실과 플라스틱 필름 온실을 대상으로 내부 온 습도 변화 및 식물체 생육의 차이를 알아보고자 수행하였다. 재배 기간 동안 일평균 내부온도는 두 온실 간 차 이를 나타내지 않았으나, 그 변화폭은 플라스틱필름 온실에서 심하였다. 그리고 온실 내 수분부족분은 유리 온실에서 4.3$g{\cdot}m^{-2}$, 플라스틱필름 온실에서 5.6$g{\cdot}m^{-2}$로 플라스틱 필름 온실에서 더 많았다. 외부 광 1w에 대한 내부 온도 변화는 유리온실보다 플라스틱필름 온실에서 2배 정도 빨리 증가하는 경향이었다. 특히, 이러한 차이에는 일몰 전 후보다 일출 후 초기의 온도 차이가 가장 크게 영향을 주었다. 이에 따라 플라스틱 필름 온실보다 유리 온실에서 잎의 생육 및 광합성산물 생산율이 더 높았고, 생산성도 80% 정도 더 높았다. 이로 보아 유리 온실 대비 플라스틱필름 온실의 생산성을 다소 높이기 위해서는 일출 직후에 내부 환경의 집중적인 관리가 이루어져야 할 것으로 생각된다.

Keywords

References

  1. Heuvelink, E., L.F.M. Marcelis, and O. Korner. 2004. How to reduce yield fluctuations in sweet pepper. Acta. Hort. 633:349-355.
  2. Jeong, W.J., J.H. Lee, H.C. Kim, and J.H. Bae. 2009a. Dry matter production, distribution and yield of sweet pepper grown under glasshouse and plastic greenhouse in Korea. Kor. J. Bio-Environ. Control 18(3):258-265.
  3. Jeong, W.J., D.J. Myoung, and J.H. Lee. 2009b. Comparison of climatic conditions of sweet pepper's greenhouse between Korea and the netherlands. Kor. J. Bio-Environ. Control 18(3):244-252.
  4. Jeong, W.J., I.K. Kang, J.Y. Lee, S.H. Park, H.S. Kim, D.J. Myoung, G.T. Kim, and J.H. Lee. 2008. Study of dry and bio-mass of sweet pepper fruit and yield between glasshouse and plastic greenhouse. Kor. J. Bio-Environ. Control 17(2):541-544 (in Korean).
  5. Kim, H.C., S.G. Jung, J.H. Lee, and J.H. Bae. 2009. Effect of greenhouse covering material on environment factors and fruit yield in protected cultivation of sweet pepper. Kor. J. Bio-Environ. Control 18(3):253-257.
  6. Korea Agricultural Trade Information (KATI). 2009. The state of sweet pepper industry in Korea. Korea Agro-Fisheries Trade Corporation, Seoul, Korea (in Korean).
  7. Kwon, Y.S. and H. Chun. 1999. Production of chili pepper in different kinds of greenhouse in Korea. The Asian and Pacific Resion-Food and Fert. Techno. Ctr. Ext.-Bul. No. 478.
  8. Marcelis, L.F.M., E. Heuvelink, L.R. Baan Hofman-Eijer, J. Den Bakker, and L.B. Xue. 2004. Flower and fruit abortion in sweet pepper in relation to source and sink strength. J. Expt. Bot. 55:2261-2268. https://doi.org/10.1093/jxb/erh245
  9. Vermeulen, P.C.M. 2008. Kwantitative Informatie voor de Glastuinbouw. 2008.