준고냉지 안개초 지상부 절단시기별 이랑위치에 따른 생육특성

준고냉지 남북동 하우스에서 안개초 가을절화 재배시 이랑위치별 기상, 생육 및 개화특성을 조사하였다. 남북동 하우스 이랑 간 야간기온은 차이가 거의 없었으나, 주간기온과 지온은 중앙이랑이 높았고, 10월 하순 이후 차이가 더 커졌다. 적산 일사량은 이웃 하우스에 의한 차광과 시설 하우스의 구조적인 요인으로 중앙이랑이 높았으며, 특히 맑은 날 이랑 간 차이가 컸다. 10월 하순에 조사한 근 활력, 광합성량 및 증산량은 중앙이랑에서 약간 높았다. 7월 10일과 18일 지상부 절단처리의 개화특성은 이랑위치에 상관없이 유사하였으나, 기형화 발생은 온도가 높은 중앙이랑이 다소 높았고, 지상부 절단이 늦은 7월 25일은 외측보다 중앙이랑이 기온, 지온 및 적산 일사량이 높아 개화가 13일 정도 빠르고 화경장과 측지수 등 개화특성이 우수하고, 기형화 및 로젯트 발생률이 감소되었다. This study was carried out to investigate the growth of Gypsophila paniculata affected by pruning time (July 10, July 18, and July 25) and ridge position (middle or window side) under south-north oriented plastic house in sub-alpine area. The average night temperature was similar between the two ridges, but the average day temperature and soil temperature were higher at the middle ridge; particularly, there was distinct difference after late October. Also the accumulative solar radiation was higher at the middle ridge than the window side ridge owing to the shading by neighboring plastic house and the structure of plastic house. The root activity, photosynthetic rate and transpiration rate of plants surveyed in late October were inclined to be more increased at the middle than the window side ridge. The flowering traits at the pruning time of July 10 and July 18 were similar between the two ridges, but the flower malformation rate was higher at the middle ridge. On the other hand, in case of the pruning time of July 25, the blooming was advanced by 13 days, and the flowering traits such as flower stalk length and branch number were better; also, the flower malformation and rosette formation rate decreased at the middle ridge, because of its higher air and soil temperature and the accumulative solar radiation. KCI Citation Count: 3