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본 연구는 직삽 양액재배에 의한 ‘백마’품종의 줄기 공동화를 경감하고 절화품질 향상시키고자 양액농도 및 공급횟수를 구명하고자 실시하였다. 생육단계별 양액농도 변환은 초기중기후기에 EC 1.6→1.8→2.0, 1.8→1.8→1.8, 1.8→2.0→1.8, 2.0→2.0→2.0 dS·m−1을 각각 처리하였 으며, 양액공급횟수는 1일 48분을 4, 8, 12, 18회로 각각 나누어 공급하였다. 생육단계별 양액농도에 따른 절화장은 양액농도가 높은 EC 2.0→2.0→2.0dS·m−1 처리가 100.1cm 로 컸고, 엽수, 경경, 엽장, 엽폭은 EC1.8→2.0→1.8dS·m−1 처 리가 가장 양호하였고, 꽃잎수는 EC1.8→2.0→1.8dS·m−1 처리가 344개/송이로 가장 많았고, 줄기공동 크기도 3.4mm 로 가장 작게 나타나 양호하게 나타났다. 양액공급횟수에 따른 효과는 절화장은 양액공급횟수가 12회/1일 처리가 116.2 cm 였고, 엽수, 경경, 엽장, 엽폭도 12회/1일 처리가 가장 양호하였으나, 꽃잎수 8회/1일처리가 336개/송이로 많았고, 줄기공동 크기는 12회/1일 처리가 3.4 mm로 가장 작게 나타나 양호하게 나타났다. 따라서 생육이 좋 을수록 줄기공동의 크기는 작아지는 것으로 생각되었다.


This study was conducted to investigate effect of ionic strength and feeding times of a nutrient solution on reduction of stem cavity size and improvement of flower quality in chrysanthemum ‘Baekma’. A nutrient solution was applied with different strengths at three stages, namely, transplanting, budding, and flowering. The solution EC was adjusted as 1.61.82.0, 1.81.81.8, 1.82.01.8, and 2.02.02.0 dS·m−1 in four treatments. Feeding frequency per a day were 4 times for 12 min., 8 times for 6 min., 12 times for 4 min., and 18 times for 2.7 min. each. Cut flower length as affected by different strengths of a nutrient solution was the greatest in the plot of EC 2.02.02.0 dS·m−1. However number of leaves, stem diameter, and leaf size were greater in EC 1.82.01.8 dS·m-1 than in other treatments. Also, petal number of petals was the greatest and stem cavity size was the smallest in the plot of EC 1.81.81.8 dS·m−1. Plant height, number of leaves, stem diameter, leaf size were greater in the plot with 12 times feeding per a day. number of petal was most in the plot with 8 times feeding per day, while stem cavity size was the smallest in the plot with 12 times feeding per a day. Therefore, the better plant growth, the smaller stem cavity size.


This study was conducted to investigate effect of ionic strength and feeding times of a nutrient solution on reduction of stem cavity size and improvement of flower quality in chrysanthemum ‘Baekma’. A nutrient solution was applied with different strengths at three stages, namely, transplanting, budding, and flowering. The solution EC was adjusted as 1.61.82.0, 1.81.81.8, 1.82.01.8, and 2.02.02.0 dS·m−1 in four treatments. Feeding frequency per a day were 4 times for 12 min., 8 times for 6 min., 12 times for 4 min., and 18 times for 2.7 min. each. Cut flower length as affected by different strengths of a nutrient solution was the greatest in the plot of EC 2.02.02.0 dS·m−1. However number of leaves, stem diameter, and leaf size were greater in EC 1.82.01.8 dS·m-1 than in other treatments. Also, petal number of petals was the greatest and stem cavity size was the smallest in the plot of EC 1.81.81.8 dS·m−1. Plant height, number of leaves, stem diameter, leaf size were greater in the plot with 12 times feeding per a day. number of petal was most in the plot with 8 times feeding per day, while stem cavity size was the smallest in the plot with 12 times feeding per a day. Therefore, the better plant growth, the smaller stem cavity size.