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      • 정식 시기와 적심 횟수가 화단국화의 생장과 개화에 미치는 영향

        姚婧超, 정해준, 김동찬, 이진희, 권민훈, 서병기 배재대학교 자연과학연구소 2013 自然科學論文集 Vol.24 No.1

        This study was conducted to investigate optimum planting date and pinching times on the growth and flowering of garden chrysanthemum(Dendranthema grandiflorum Ramat.). 3 lines of garden mums were planted on May 16, June 13 and July 11 respectively. As planting date was delayed, all the 3 lines' plant height and plant width was reduced. 09-19-49 line got the biggest plant height and width, followed by 09-11-37 line. And 08-166-02 line was the smallest. In different planting times, the experiment group of May 16 and June 13 got the biggest plant height, plant width and stem diameter. However, in the experiment group of May 16, most of the plants got flattened. The experiment group of June 13 got the best ornamental value, and the ornamental value was reduced in the experiment group of July 11 by the short vegetative growth. 09-19-49 line got the most flowers, while in different planting time, the experiment group of May 16 got the most flowers. 09-11-37 line got the biggest flower diameter. 09-11-37 line and 09-09-51 line were planted in the containers on the rooftop. Each groups were pinched by 1, 2 and 3 times on July 2, July 26 and Aug 16 respectively. There was no effect on plant height, plant width, and stem diameter of 09-09-51 line and 09-11-37 line between 1-time-pinching group and 2-time-pinching group. But 3-time-pinching group was reduced. There was no significance in flower diameter of these two lines but the number of flowers was reduced by more pinching times. Therefore, in this experiment, the groups which were planted on June 13 got the best ornamental value and the recommended planting time is in the middle of June. Furthermore, 2 times of pinching was recommended.

      • 조경용 국화 품종 ‘Pansy Ball’과 육성 계통의 적정 식재 밀도

        정해준 · 김동찬 · 姚婧超 · 서병기 배재대학교 자연과학연구소 2012 自然科學論文集 Vol.23 No.1

        This research was carried out to investigate optimum planting density of landscape garden mum ‘Pansy Ball’ and 5 inbred lines. ‘Pansy Ball’ and 5 inbred lines of garden mums were planted at Pai Chai university campus on April 25, 2011. Plant density was controlled by 1 plant, 2 plants, 4 plants in one plot of 0.4m x 0.5m respectively. Average plant height in 1 plant in one plot was 46.2cm~71.7cm. And the average plant height in 2 plant in one plot was 45.9cm~64.8cm, while 4 plant in one plot was 38.9cm~53.2cm. Also, plant width of 05-18-01, 05-01-01, 09-76-03, and 09-02-02 inbred lines were over 50cm by 1 plant in one plot. However, as the plant height and plant density was high, most of the plants got flattened and the ornamental value was also reduced. We got the ‘Pansy Ball’ and 2 inbred lines 09-76-03, 09-02-02 for proper landscape ground cover plant.

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