국산 안개초 ‘Dream Song’ 가을~초겨울 절화 재배시 개화 촉진 및 절화 생산성 향상에 적절한 광원 선발을 위해 전조 광원별 생육 및 개화특성을 조사하였다. 백열등의 광질은 청색, 적색 및 원적외선 파장 모두 높고 고압나트륨등(HPS)은 적색 파장이 약간 높았으며, LED는 청색이 적색 파장보다 높았고 삼파장등은 청색과 적색 파장이 낮게 조사되었다. 주간(13:00)과 야간(전조 1시간 후, 23시)에 측정한 엽록소 형광 반응은 광원별로 차이가 없었다. 백열등과 고압나트륨등이 생육 진전이 빨라 출뢰 및 개화가 촉진되었으며, 화경장과 절화장이 길고 분지수와 개화율이 높아 절화량도 많았다. LED 전조는 개화 촉진 효과는 적었으나 분지수가 향상되었다. 따라서 경영비를 고려한 국산 안개초 ‘Dream Song’ 전조 재배 시 광원은 백열등이 적정하다고 생각된다.

This study was investigated the effect of heating time (taken the pots transplanted perennial root in heating greenhouse from Dec. 30 to Mar. 2 as 10 days interval) after 1st cut-flower harvesting on the growth, flowering time, and cut-flower productivity of domestic bred Gypsophila paniculata ‘Dream Song’ in plain area. As the later heating time, the shorter days to shoot emergence and flower budding as the longer exposed to low temperature, and blooming was promoted with increasing the air temperature within greenhouse. Flower stalk length, node number, and stem diameter were inclined to decline in later heating time. In Dec. 30 heating time, node number on a main stem was many, but primary branches number was low due to insufficient breaking of dormancy. Cut flower length was not significantly different as affected by heating time, fresh weight got declined as the later heating time and then drastically decreased in Mar. 2. Cut-flower yield was not significantly different among heating time except for both Dec. 30 insufficiently exposed to low temperature and Mar. 2 shortened the growth duration caused by relatively high temperature. It was thought that the dormancy of ‘Dream Song’ broke after the middle of January under natural low temperature, and the production of second crop should be cultivated within Feb. 20 from mid January.