Current Research Trend of Postharvest Technology for Chrysanthemum

Abstract

-Chrysanthemum is a cut flower species that normally lasts for 1 to 2 weeks, in some cases 3-4 weeks. This has been attributed to low ethylene production during senescence. Reduction in cut flower quality has been attributed to the formation of air embolisms that partially or completely blocks the water transport from the vase solution to the rest of the cut flower stem, increasing hydraulic resistance which may cause severe water stress, yellowing, wilting of leaf, and chlorophyll degradation. Standard type chrysanthemum can be harvested when buds were still tightly closed and then fully opened with the simple bud-opening solution. Standard type chrysanthemum can also be harvested when the minimum size of the inflorescence is about 5-6 cm bud which opened into the first flower full-sized flower. While spray varieties can be harvested when 2-4 most mature flowers have opened (40% opening). Cut flowers are sorted by stem length, weight, condition, and so on. Standard chrysanthemum is 80 cm length for standard type and 70cm for spray type. Pre-treatment with a STS, plant regulator such as GA, BA, 1-MCP, chrysal, germicide, and sucrose, significantly improved the vase life and quality of cut flowers. It is well established that vase solutions containing sugar can improve the vase life of cut chrysanthemum. Chrysanthemum is normally packed in standard horizontal fiberboard boxes. Chrysanthemum should normally be stored at 5-7℃. Precooling resulted in reduction in respiration, decomposition, and transpiration activities as well as decoloration retardation. There was significant difference between "wet" storage in 3 weeks and "dry" storage in 2 weeks. In separate pulsing solution trials, various germicides were tested, as well as PGRs to maintain the green color of leaves and turgidity. Prolonging vase life was attained with the application of optimal solution such as HQS, AgNO3, GA, BA and sucrose. This also retarded senescence in leaves of cut flower stems. Fresh cut chrysanthemum can be transported using a refrigerated van with 5-7℃. Increasing consumption and usage of cut chrysanthemum of various cultivars would require efficient transport system, and effective information exchange among producer, wholesaler, and consumer.

Morphological Characteristics, and Coefficient of Variation, Heritability and Genetic Advance of Major Cultivars of Spray Chrysanthemum

“…국화는 장미, 난, 나리, 카네이션을 위시한 절화류 중 생산량이 가장 많은 화훼류 중의 하나이며, 꾸준한 증가세로 인해 2010 년에는 국내 절화 수출의 13.4%를 차지하고 있으며(MIFAFF, 2011), 관혼상제용으로 주로 이용되고 있는 국화는 스탠다드 국 화로서 주로 흰색이 사용되고 있으며 관상용으로 사용되는 스프레이 국화는 주로 절화용으로 (Suh et al, 2015), 소국 또는 대국 은 화분용 또는 화단 재배용으로 다양하게 이용되고 있다 (Kim et al, 2012).…”

Changes in Moisture Content and Quality of Oriental Hybrid Lily (Lilium oriental cv. Siberia) Cut Flowers during Storage at Cold and Dry Condition and Subsequent Exposure to Ambient Temperature

“…절화에서 수분과 관련되어 절 화보존 시 수분균형에 관한 연구가 대부분이다 8,9) . 절화를 저 장함에도 불구하고 작물 체내 수분상태가 어느 정도인지 또 는 소비자가 이용하기 전에 어떤 조건이 절화 수명에 영향 을 미치는가에 대한 고찰이 미흡하다.…”

Analysis of Conveyance Environment and Pre-treatment on Quality Maintenance of Cut Dendranthema grandiflorum ‘Baekma’ during Ship Export to Japan

“…. 스탠다드 국화의 수요는 일본 명절인 오 봉절(8월)과 추분절(9월)에 급증하고 있으며 (Lim et al, 2013), 오봉절과 추분절은 절화 국화 수출 시장의 성수기로 (Kim et al, 2012), '신마(Jinba)', '백선(Iwanohakusen)', '백마(Baekma)' 세가지 품종이 많이 이용된다 (Shin et al, 2005 (Lee, 2011;Lee and Lee, 2013;Kim et al, 2012 (Guo et al, 1997;Park et al, 2000;Petridou et al, 2001;Kazemipour et al, 2013;Kim et al, 2012) (Suh and Kwack, 1994).…”