KOREASCHOLAR

현재 농가에서 이용되고 있는 보광등과 난방등의 특성을 조사하고 하우스내 기상 환경과 절화장미의 개화와 품질에 미치는 영향을 알아보기 위해 실험을 수행하였다. 보광등으로는 LED등(light emitting diode lamp, LED), 메탈할라이드등(metal halide lamp, MH), 고압나트륨등(high pressure sodium lamp, HPS)을, 난방등으로는 나노탄소섬유 적외선등(nano-carbon fiber infrared lamp, NCFI)을 절화장미 재배상 위에 설치하였다. 그 결과 LED와 NCFI의 광도는 각각 6.8μmol·m-2·s-1과 0.4μmol·m-2·s-1으로 매우 낮은 반면, MH와 HPS는 79 ~ 100μmol·m-2·s-1 범위로 높은 편이었다. 또한 LED와 MH는 적외선역에 파장이 없어 발열량이 거의 없었으나, HPS와 NCFI는 적외선역에 파장이 많아 발열이 많은 것으로 나타났다. 동일한 공간에서 칸막이로 실험구간을 나누어 실험이 수행되었음에도 불구하고 MH, HPS, NCFI에 의해 온도는 2°C 정도 상승되는 결과를 얻었으나, 습도에서는 처리간 차이가 보이지 않았다. 광도에 상관없이 모든 전등들은 절화장미의 개화를 촉진시켜 무처리구에 비해 적게는 5 ~ 7일, 많게는 12 ~ 14일 개화가 촉진되는 것으로 나타났다. 광량이 충분한 봄철에는 전조처리에 의해 개화소요일수가 짧아지는 만큼 절화장도 대조구보다 짧아졌지만, 광량이 부족한 겨울철에는 전조처리에 의해 절화장이 길어져 품질이 향상되는 결과를 얻을 수 있었다.

The characteristics of several types of supplementary light sources and one heat lamp, which are currently used in cut rose production, were investigated to determine their influence on the meteorological environment of a greenhouse and the flowering time and quality of plants grown for cut roses. Supplemental lighting was installed above the growing bed of the cut rose (Rosa hybrida ‘ Feel L ip’) p lants using light emitting d iode ( L ED) lamps, metal halide (MH) l amps, high pressure sodium (HPS) lamps, and nano carbon fiber infrared (NCFI) heat lamps. The luminosity of the LED and NCFI lamps was very low (6.8 μmol·m-1·s-1 PPF and 0.4 μmol·m-1·s-1 PPF, respectively), whereas MH and HPS lamps had a significantly higher luminosity the lamps had a luminosity of 79 – 100 μmol·m-1·s-1 PPF. The LED and MH lamps did not produce a wavelength in the infrared region, and generated little heat. However, the HPS and NCFI lamps radiated more heat due to having a large wavelength in the infrared region. The experiment was performed by dividing the treatment plot in the same space, and daily minimum temperature was increased by 2°C under the MH, HPS and NCFI lamp treatments. However, there was no difference in relative humidity between any of the treatments. Regardless of light intensity, all lamp types promoted flowering of the cut rose plants, resulting in shortening in the days to flowering by 5 – 7 days at least, or 12 - 14 days as many compared with that of control. In the spring when there was a sufficient amount of natural light, the length of the flower stalk of plants grown under supplemental light treatments was shorter than that of the control as the days to flowering was shortened by the supplemental lighting. However, in the winter when there was an insufficient amount of natural light, the length of the flower stalk on the treated plants was longer than that of control, showing an improvement in flower quality.

Abstract
 서 언
 재료 및 방법
  식물재료 및 재배관리
  보광등과 난방등 설치 및 광 특성 조사
  시설 내 기상 환경 및 절화 장미 품질 조사
  실험설계 및 통계처리
 결과 및 고찰
  전등 종류에 따른 광질 변화와 광도
  전등 종류에 따른 시설내 온도와 상대습도의 변화
  전등 종류가 절화장미의 개화속도에 미치는 영향
  전등 종류가 절화장미 품질에 미치는 영향
 초 록
 References

• Young Shin Chon(Department of Horticulture Science, Gyeongnam National University of Science and Technology) | 천영신
• Kyeong Jin Jeong(Department of Horticulture Science, Gyeongnam National University of Science and Technology) | 정경진
• Jeum Kyu Hong(Department of Horticulture Science, Gyeongnam National University of Science and Technology) | 홍점규
• Hyun Suk Shin(Department of Horticulture Science, Gyeongnam National University of Science and Technology) | 신현석
• Jae Gill Yun(Department of Horticulture Science, Gyeongnam National University of Science and Technology) | 윤재길 Corresponding author