Title

不同貯藏條件下荳薯種子的脂質過氧化研究

Translated Titles

Changes in Lipid Peroxidation in Yambean Seeds Stored under Different Conditions

Authors

黃勝琴(Sheng-Qin Huang);陳潤政(Run-Zheng Chen)

Key Words

荳薯 ; 種子貯藏 ; 溫度 ; 脂質過氧化 ; 揮發性醛 ; Yambean Pachyrhizus erosus ; Seed storage ; Temperature ; Lipid peroxidation ; Volatile aldehyde

PublicationName

熱帶亞熱帶植物學報

Volume or Term/Year and Month of Publication

12卷2期(2004 / 03 / 01)

Page #

163 - 166

Content Language

簡體中文

Chinese Abstract

荳薯(Pachyrhizus erosus (L.) Urban)種子分別在4℃、15℃相對濕度(RH) 45%及室溫開放條件下貯藏,或新鮮種子進行超幹處理將其含水量降到6.43%後密封貯存,以探討種子劣變的生理機制。結果表明,荳薯種子在室溫開放貯藏12個月的發芽率降至50%,24個月後發芽力完全喪失。4℃下貯藏荳薯種子最有效,貯藏後種子的電導率和紫外吸收值較低,過氧化氫酶、過氧化物酶和超氧化物歧化酶活性仍保持較高水平,種子萌發時釋放出的揮發性醛也較低。適當的超幹處理效果與15℃ 45%RH相似,但不及4℃的。

English Abstract

Yambean (Pachyrhizus erosus (L.) Urban) seeds were stored in drier in refrigerator at 4℃, in sealed drier containing saturated solution of potassium sulfocyanate at 15℃ and at 45% relative humidity, in room temperature, and in ambient temperature after the seeds were dried at 6.43% seed moisture (ultra-dry treatment). The experiments showed that the germination rate of yambean seeds declined to 50% in room temperature after 12 months of storage, and completely lost the germination capacity after 24 months. Best temperature for storage of yambean seeds was 4℃ under which the activities of peroxidase, catalase and superoxide dismutase in seeds were still high after storage, and the values of electroconductivity and ultraviolet absorption remained low, the production of volatile aldehydes were also low during seed germination. Storage effect of ultra-dry treatment was nearly the same as treatment at 15℃ with relative humidity of 45%.

Topic Category 生物農學 > 植物學
生物農學 > 生物環境與多樣性