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Ruey Song Lin
|關鍵字:||rose;玫瑰花;vibration;respiration rate;ethylene;振動;呼吸率;乙烯||出版社:||臺中巿： 國立中興大學農學院||Project:||農林學報, Volume 51, Issue 4, Page(s) 65-86.||摘要:||
"The purpose of this study is to investigate the relationship between the quality of cut roses and road vibration due to transportation .The vibration frequency and duration are given and simulated by computer. The items of experiments include the variation of fresh weight, the rate of water absorbing, the respiration rate and the producing quantity of the ethylene. Hopefully, the results can be used in the relative research of transportation and packing.
The Grand Gala, a variety of local product, was chosen as an experimental material. After cutting, the rose samples were put into water immediately to avoid losing water. The cut roses had to make experiments in one and half hours. In this research, we imitate the vibration traveling on the high way by both signal generator and shaker. Kept the cut flowers standing in the respiration vat with water and the constant temperature of 24℃. After sealing the vats, the cut flowers were separated in five groups with tap water, distilled water and preservatives of 100 ml that were put into test tubes of 1-inch inner diameter. they were vibrated with the frequency of 20Hz and the amplitude of 500 μm.
The variation of fresh weight of the cut roses could be represented as an equation of y=-Ax^2+ Bx + C, which y is fresh weight of the cut flowers, x is the day of the experiment. The results showed that the rate of weight losing for the cut flowers with vibration was fast than that without vibration. Under the vibration stress, the respiration rate increased. It was observed that the rate of water absorbing was higher on the second day. Therefore, it concluded that the vibration indeed sped up the death of roses and shortened the life of the flowers. The main effects of cut flowers due to vibration happened on that time when the stress came, in the mean time, the respiration rate rose, the ethylene also produced. It was to conclude that vibration could have the effect on the quality of cut roses."
|Appears in Collections:||第51卷 第04期|
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