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題 名 | 植物組織培養瓶氣體交換率之測定=Measurement of the Gas Exchange Rates for Plant Tissue Culture Vessels |
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作 者 | 陳加忠; 林瑞松; | 書刊名 | 中華農業氣象 |
卷 期 | 5:3 1998.07[民87.07] |
頁 次 | 頁123-132 |
分類號 | 430 |
關鍵詞 | 交換率; 組培瓶; 微氣候; Gas exchange rate; Tissue culture vessel; Microclimate; |
語 文 | 中文(Chinese) |
中文摘要 | 組培瓶內氣體環境對於植株的成長與發展有顯著影響。瓶內與瓶外空氣的換氣率 影響瓶內微氣候,因此對各型組培瓶的換氣率物性應加以測定。在已知文獻中,換氣率之 測定係利用兩個不同時期之二氧化碳濃度測定值加以計算。此方式需要昂貴設備,而計算 之換氣率受到量測值準確性之限制。在此研究中採用絕對濕度為測定的氣體濃度。組培瓶 內相對濕度之變化值由已校正之電阻式相對濕度感測元件加以量測。外界之相對濕度以飽 和鹽溶液維持穩定值,溫度以�皕鬚c維持定值。量測之相對濕度換算為絕對濕度與特定之 濕度比值,再以迴歸分析軟體計算換氣率。此技術具有低廉、快速、簡易與準確之特點, 可在短時間內測得組培瓶換氣率。 |
英文摘要 | The aerial environment in the culture vessel has significant effect on the growth and development of a plantlet in vitro. The gas exchange rate between the outside air and the inner air could influence the microclimate of culture vessels. It is necessary to measure the air exchange rate for various vessels. Literature indicated that this parameter was usually determined by the changes of CO�畚oncentration measured at different times. The expensive equipment and the accuracy of measured data all limited the usefulness of this technique. In this study, absolute humidity was adopted as trace gas. The change of absolute humidity inside the vessel was measured continuously by resistive relative humidity sensing element that had been calibrated. The outside environment was maintained at constant humidity level by saturated salt solution. Constant temperature was also maintained by temperature controller. The RH data were transformed into absolute humidity and the specific humidity ratio. The air exchange rate of various tissue culture vessels were then calculated. This technique provides an inexpensive, rapid, simple and accurate way to determine the air exchange rate of culture vessel within a short period. |
本系統中英文摘要資訊取自各篇刊載內容。