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Effects of Shipping Temperature and Harvesting Stage on Quality and Vase Life of Cut Flowers in Dendranthema grandiflorum ‘Baekma’ for Export

수출용 국화 ‘백마’의 수송온도 및 수확시기에 따른 절화 품질과 수명

Yong Kweon Yoo12*
,
Yong Seung Roh2
유 용권12*
,
노 용승2
1Depratment of Horticultural Science, Mokpo National University
2Institute of Natural Resources, Mokpo National University
1목포대학교 자연과학대학 원예과학과
2목포대학교 자연자원개발연구소
*교신저자. *Corresponding Author. 
28 February 2015. pp. 61-69
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Abstract

This study was carried out to investigate the effects of shipping temperature and harvesting stage on the quality and vase life of cut flower in standard chrysanthemum ‘Baekma’ for export. Cut flowers harvested at flowering stage 4 were stored for 24 hours at 5°C, and then quality and vase life were evaluated after simulated shipping for 48 hours at 5, 20, and 35°C. In addition, cut flowers harvested in flowering stage 1 to stage 6 were evaluated after simulated shipping for 72 hours at 5°C. As shipping temperature increased, CO2 concentration inside the box rapidly increased, and O2 concentration greatly decreased. The vase life of cut flowers was extended by 3 days and chlorophyll content of leaves, fresh weight, solution uptake, and flower diameter were better maintained in 5°C shipping than in 20 or 35°C shipping. The vase life of cut flowers harvested at flowering stage 1 or 2 was extended by 5.2 or 5.5 days compared to those harvested at flowering stage 6, more 6. The fresh weight was lower and flower diameter was smaller by 1.3 or 2.5 cm in cut flowers of flowering stages 1 through 3 than flowering stages 4 through 6. In addition, the cut flowers of flowering stages 4 through 6 showed higher solution uptake than those of flowering stages 1 through 3. These results suggest that shipping at 5°C of cut flowers harvested at flowering stage 4 is preferential for promoting vase life and quality of cut flower in standard chrysanthemum ‘Baekma’ for export to Japan.

Keywords
flower diameter
flowering stage
fresh weight
solution uptake
standard chrysanthemum

본 연구는 수출용 스탠다드 국화 ‘백마’의 모의 수송온도와 개화단계에 따른 절화의 품질과 수명에 미치는 영향을 조사하여 적정 수송온도와 수확시기를 구명하고자 실시하였다. 개화 4단계의 ‘백마’ 절화를 수확하여 5°C에서 24시간 수송한 후 5, 20, 35°C에서 48시간 모의 수송하여 절화의 품질을 조사하였다. 또한 개화 1단계에서 6단계까지의 절화를 수확하여 5°C에서 72시간 동안 모의 수송한 후 절화의 품질을 조사하였다. 수송온도가 높아질수록 유통박스 내의 CO2 농도는 급격히 높아졌으며, O2 농도는 크게 감소하였다. 35°C와 20°C보다 5°C에서 수송하는 것이 절화수명이 3.8일 연장되었으며, 잎의 엽록소 함량도 345.7로 가장 많았다. 또한 35°C보다 5°C 수송조건에서 절화의 생체중과 흡수량이 높게 유지되었을 뿐만 아니라 화경도 보존용액에서 8일째에 2.3cm 더 길었다. 개화 6단계보다 개화 1-2단계에서 수확한 절화의 수명이 5.2-5.5일 연장되었다. 그러나, 개화 1단계부터 3단계까지의 절화들은 개화 4-6단계보다 생체중이 낮았을 뿐만 아니라 화경도 1.3-2.5cm 더 작았다. 또한 개화 4-6단계의 절화는 개화 1-3단계의 절화에 비해 상대적으로 흡수량이 많은 것으로 나타났다. 따라서 일본 수출용 ‘백마’는 설상화의 개화상태와 품질을 고려한다면 개화 4단계의 절화를 5°C 조건에서 수송하는 것이 가장 바람직하다고 판단되었다.

키워드
화경
개화단계
생체중
용액 흡수량
스탠다드 국화
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :원예과학기술지
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 33
  • No :1
  • Pages :61-69
  • Received Date : 2014-05-07
  • Revised Date : 2014-07-10
  • Accepted Date : 2014-07-20
  • DOI :https://doi.org/10.7235/hort.2015.14082
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