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Postharvest Life of Cut Rose Flowers as Affected by Silver Thiosulfate and Sucrose

硫代硫酸銀及蔗糖對玫瑰之瓶插壽命之影響

摘要


玫瑰(Rosa hybrida L.cv.Diana)之切花用蔗糖每公升0,20,40,60,80,100及120公克(處理液中含8-hydroxyquinoline sulfate 200mgL^(-1))處理十小進後,放至蒸餾水中繼續瓶插處理。結果顯示,溶液每公升中含蔗糖120g之玫瑰之瓶插可維持最久之壽命(約七日)。利用硫代硫酸銀之二小時或用硫代硫酸銀處理二小時後移到蔗糖溶液(120gL^(-1))(含HQS 200mgL^(-1))處理十小時,各約可維持疳插壽命九及十日。瓶插之玫瑰切花亦以硫代硫酸銀處理後再用蔗糖溶液處理之品質最佳。剛採收不久之玫瑰花之乙烯發生量較經不同化學藥劑溶液處理過之瓶插花朵顯著很高。與對照區相比,蔗糖對抑制乙烯發生最具效果,其次是先用硫代硫酸銀再用蔗糖之處理區,單用硫代硫酸銀之抑制效果較小。

關鍵字

瓶插 玫瑰 乙烯發生量 硫代硫酸銀 蔗糖

並列摘要


A pulse treatment of sucrose at 0, 20, 40, 60, 80, 100, and 120gL(superscript (-1)) in combination with 8-hydrox-yquinoline sulfate (HQS) at 200 mg L(superscript (-1)) for 10h was evaluated daily for its effect on the vase life and flower quality of cut rose flowers. The pulse treatment of sucrose at above 80gL(superscript (-1)) produced a vase life of 6 to 7 days, while at below 80gL(superscript (-1)) vase life was maintained for 4 days on average. The pulse treatment of silver thiosulfate (STS) at 0.2mM for 2h or STS for 2h followed by sucrose at 120gL(superscript (-1)) supplemented with HQS for 10h extended the vase life of cut rose flowers to about 9 and 10 days, individually. On the other hand, a pulse treatment with sucrose or distilled water in combination with HQS maintained vase life for 7 and 3 days, respectively. Flower quality of specimens treated with STS followed by sucrose in combination with HQS was better than that of those treated with STS alone. Although visual quality could be maintained for up to 13 days in STS followed by sucrose in combination with HQS, flower quality decreased notably after 10 days. The ethylene production was greatest in untreated rose flowers (about 3h after harvest) and decreased after chemical solutions treatment. The inhibition of ethylene production was greater in sucrose in combination with HQS than with STS or STS followed by sucrose along with HQS, although the effectiveness of the latter for maintaining rose vase life was better than the former.

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