동절기에 공정육묘장에서 난방 에너지 절감과 우량묘 생산을 위해 나노탄소섬유적외선 난방등(NCFIHL, nanocarbon fiber infrared heating lamp)의 적정 전력과 설치 높이를 구명하는 것이 본 연구의 목적이다. 벤로형 유리 온실 내부에 수박 접목묘를 재배하기 위해 700과 900W NCFIHL을 육묘 베드(1.2 × 2.4m)에서 0.7, 1.0, 및 1.3m 높이로 각각 설치하였다. 수박(Citrullus lanatus (Thunb.) Manst.) ‘지존꿀’과 박(Lagenaria leucantha Rusby.) ‘선봉장’은 각각 접수와 대목으로 사용되었다. 접수와 대목은 편엽합접 방식으로 접목되었다. NCFIHL의 광도는 모든 처리에서 1μmol·m-2·s-1 이하였다. NCFIHL의 광분포는 대부분 적외선 영역에서 나타났다. 외기온도가 10oC 이하일 때 700과 900W NCFIHL을 0.7m 높이로 설치한 처리구와 900W NCFIHL을 1.0m 높이로 설치한 처리에서 야간 설정온도(20oC)를 유지하였다. 열화상 촬영에서는 900W NCFIHL을 0.7m 높이로 설치한 처리에서 가장 빨리 식물체의 온도가 올라갔다. Compactness는 700W NCFIHL을 1.3m 높이로 설치한 처리에서 우수하였다. 결과적으로 700W NCFIHL을 1.0m 이상으로 설치하는 것이 바람직하다고 판단된다.

The aim of this study was to examine the optimum wattage and installation height using nano-carbon fiber infrared heating lamp (NCFIHL) for heating energy saving and plug seedling production in plug seedling production greenhouse in winter season. NCFIHL of 700 and 900 W was installed over the bed (1.2 × 2.4 m) as 0.7, 1.0, and 1.3 m height, respectively, for the production of grafted watermelon seedling in venlo-type glasshouse. Watermelon (Citrullus lanatus (Thunb.) Manst.) ‘Jijonggul’ and gourd (Lagenaria leucantha Rusby.) ‘Sunbongjang’ were used as scions and rootstocks, respectively. The scions and rootstocks were grafted by single cotyledon ordinary splice grafting. Light intensity of NCFIHL was below the 1 μmol·m-2·s-1 in all treatment. Spectral distributions of NCFIHL presented mostly infrared area. When outside air temperature was below 10oC, 700 and 900W NCFIHL installed with 0.7 m height treatment and 900W NCFIHL installed with 1.0 m height treatment maintained the setting air temperature (20oC) at night. In the result of taking thermal imaging, the grafted watermelons were getting warm fast in 900W NCFIHL installed with 0.7 m height treatment at night. Compactness of the grafted watermelons was the greatest in 700W NCFIHL installed with 1.3 m height treatment. The results indicate that NCFIHL installed above 1.0 m height using 700W was suitable for production of plug seedling.

Abstract.
 서 론
 재료 및 방법
  1. 실험재료
  2. 적외선 난방등 처리
  2. 환경 측정
  3. 생육 조사
  4. 통계 분석
 결과 및 고찰
 적 요
 사 사
 Literature Cited

• 김혜민(경상대학교 대학원 응용생명과학부, Department of Horticulture, Division of Applied Life Science, Graduate School of Gyeongsang National University) | Hye Min Kim
• 김영진(경상대학교 대학원 응용생명과학부, Department of Horticulture, Division of Applied Life Science, Graduate School of Gyeongsang National University) | Young Jin Kim
• 황승재(경상대학교 대학원 응용생명과학부, 경상대학교 농업생명과학대학 원예학과, 경상대학교 농업생명과학연구원, Department of Horticulture, Division of Applied Life Science, Graduate School of Gyeongsang National University, Department of Horticulture, College of Agriculture & Life Sciences, Gyeongsang National University, Institute of Agriculture & Life Sciences, Gyeongsang National University) | Seung Jae Hwang Corresponding author