貯藏溫度與濕度對Lucky Girl 春石斛成熟株葉片與開花品質之影響
Other Title
Effects of Storage Temperature and Relative Humidity on Leaf and Flower Quality in Dendrobium Lucky Girl
Journal
臺灣園藝
Journal Volume
4
Journal Issue
58
Pages
305-314
Date Issued
2012-12
Date
2012-12
Author(s)
黃肇家
黃慧穗
蔡金玉
姚秋嫻
丁一
Chao-Chia Huang
Huey-Suey Huang
Chin-Yu Tsai
Chiu-Hsien Yiau
Ie Ting
Abstract
本研究將春石斛Dendrobium Lucky Girl 成熟株置於不同溫度與濕度下，黑暗貯藏28 日以模擬海運來探討海運可能之適當溫度與濕度。結果經6、12 與18℃貯藏後，在一般溫室(日夜溫28/20℃)栽培到開花時，有葉率各為54%、49%與23%；而未貯藏者為70%。貯藏濕度試驗於6 與12℃貯藏下，將相對濕度控制於71%、85%及99% RH，在6℃貯藏下，3 個濕度處理之葉片品質都維持良好，到開花時有葉率皆在82%以上。以12℃貯藏則深受濕度所影響，在85% RH 下，有葉率為87%，高濕(99% RH)或低濕(71% RH)則各為50%與36%。開花品質於6 與12℃貯藏者，有花節數比例為52%-55%，18℃貯藏者較低，為40%-43%，未貯藏者為59%-67%。每節位之花朵數為2.1-2.8 朵；花序長度除了以18℃貯藏者小於10 cm，其他以6 與12℃貯藏者都大於12 cm。植株經過貯藏後，盆花壽命約為5 週，未貯藏者約為6
週。12℃貯藏會縮短催花日數，其始花日數為71-75 日，未貯藏者為80-82 日。綜合這些結果，顯示Lucky Girl 春石斛若要海運歐美，維持葉片品質較為困難，以6與12℃貯運較適合，但以12℃貯運則需將相對濕度維持於85%左右。
Mature plants of a nobile dendrobium, Dendrobium Lucky Girl were stored at 6, 12 and 18℃ for 28 days as a simulation of marine shipment and then the plants were cultivated in a greenhouse at day/night temperature of 28/20℃. When the plants began to flower the percentages of nodes with leaf were 54%, 49% and 23% for the plants stored at 6, 12 and 18℃, respectively, as compared with 70% in the control without storage. Another group of plants were kept at 71%, 85%, and 99% RH when stored at 6 and 12℃. More than 82% of leaves remained intact on the three humidity treatments when stored at 6℃. High leaf retention occurred in plants at 85% RH when stored at 12℃. There were 52% to 55% of nodes that produced flowers in plants stored at 6 and 12℃, as compared with 40% to 43% when stored at 18℃, and 59% to 67% in the control. There were 2.1 to 2.8 florets in each node of stem. The floret diameter was 4.5 to 4.9 cm. Plants stored at 6 and 12℃ produced 12 cm or longer inflorescences, while those stored at 18℃ had 10 cm or shorter inflorescences. The longevity of the flower was 5 weeks approximately, as compared to 6 weeks in control. Plants stored at 12℃ flowered on days 71-75 after cultivation in the greenhouse while the unstored plants took 80 to 82 days to flower. Results show that the suitable storage conditions were 6℃ or 12℃ with the relative humidity controlled at 85% for exporting Dendrobium Lucky Girl plants by marine shipment.
Subjects
模擬運輸
有葉率
開花率
始花日數
盆花壽命
simulated transportation
percentage of node with leaf
percentage of node with flower
days to anthesis
potted flower longevity
Publisher
臺灣園藝學會
Type
journal article
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