涼溫展售提高零售消費端切花觀賞品質

Cool Shelf Temperature Improves Retail Cut Flowers Qualities

馮泓文(Hong-Wen Feng)；陳彥樺(Yen-Hua Chen)

瓶插壽命 ； 單花壽命 ； 吸水量 ； 鮮重變化率 ； 葉片黃化 ； vase life ； flower life ； water uptake ； fresh weight changes ； leaf yellowing

臺中區農業改良場研究彙報

161期（2023 / 12 / 01）

33 - 43

繁體中文;英文

目前臺灣切花已可在零售超市購買，然切花於展售期間並未規範一致標準的展售溫度，在2-3天的展售期，展售溫度是否影響切花品質未有確切研究數據供參。臺中區農業改良場針對中部地區超市展售之切花，以百合（Lilium spp. ‘曼尼薩’）、洋桔梗（Eustoma russellianum（Don）Griseb. ‘國民彩虹’）及康乃馨（Dianthus caryophyllus L. ‘多康彩虹’）為例，比較15℃冷藏與27℃室溫兩種展售溫度下，切花出售後瓶插品質及壽命的差異。15℃冷藏展售的百合、洋桔梗及康乃馨切花，其較室溫展售組增加50%以上吸水量，且鮮重維持天數長，整體瓶插壽命延長70%以上。在瓶插品質方面，15℃冷藏展售組之百合較室溫展售組約延遲3.5天出現葉片黃化；15℃冷藏展售組洋桔梗與康乃馨的單花壽命較室溫展售組增加60%以上。依研究結果所示，使用冷藏櫃展售鮮花可延長切花展售天數，並提升消費者購買後之瓶插品質及壽命。

In recent years, consumers could purchase cut flowers from supermarkets in Taiwan. However, there is no consistent shelf temperature, and very limited research studies on the effect of short-term shelf temperature on the postharvest qualities of the cut flowers. To clarify the puzzle, we purchased three kinds of cut flowers: lily, lisianthus, and carnation, from two local supermarkets that have different shelf temperatures for cut flowers. Cut flowers displayed at 15°C low temperature had 50% more water uptake than those displayed at 27°C room temperature, also maintained fresh weight for more days, and extended vase life by more than 70%. In terms of postharvest quality, the lilies displayed at 27°C showed leaf yellowing 3.5 days earlier than those displayed at 15°C. The flower life of lisianthus and carnation displayed at 15°C were 60% longer than those displayed at room temperature. Based on the results, in order to extend the displaying days and improve the postharvest quality of retail cut flowers, the low shelf temperature is recommended to retailers for better marketing sales and consumer feedback.