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首页> 外文期刊>日本作物學會紀事 >The CaCl2-tube method for measuring the rate of transpiration.
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The CaCl2-tube method for measuring the rate of transpiration.

机译：测量蒸腾速率的CaCl2-管方法。

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摘要

Some experiments were conducted on the method for measuring transpiration by the moisture absorption of granular CaCl2. Following the results of preliminary test, the degree of moisture absorption was limited within ten per cent bf the dry weight or a quarter of maximum absorption to hold the error due to free-pass-moisture less than one per cent. On the comparison of the evaporation from a evaporative pan and the absorption by this method, any significant difference was not found at 95 per cent confidence level, and it was concluded that this method was accurate enough for practical use. As the rate of transpiration varies considerably with air velocity, the velocity at the leaf surface was fixed at a value between 1 to 2 cm per second. The distribution of transpiration by the leaves on various ous positions of the stem was shown. A leaf chamber was devised for measuring the partial transpiration in a leaf. The rate of transpiration from the upper and lower surfaces of a leaf was measured separarely. The difference was also shown on the rate of transpiration from the apical and basal parts of a leaf-blade.
机译：对测量颗粒CaCl 2的吸湿测量蒸腾的方法进行了一些实验。在初步测试的结果之后，吸湿程度限制在1％的5％以内的干重或四分之一的最大吸收，以保持由于自由通过水分少于1％的误差。在蒸发锅中蒸发的比较和通过该方法的吸收的比较，在95％的置信水平上没有发现任何显着差异，并且得出结论，这种方法足以进行实际使用。随着蒸腾速率随空气速度而变化，叶片表面的速度在每秒1至2cm的值下固定。叶片在茎的各种位置上的蒸腾蒸腾分布。设计了一种叶室，用于测量叶子中的部分蒸腾。单独测量叶子上表面和下表面的蒸腾速率。还显示出叶片的顶端和基部部分的蒸腾速率差异。

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  • 来源
    《日本作物學會紀事》 |1966年第4期|共页
  • 作者

    Yuko OGURA;

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  • 收录信息 美国《科学引文索引》(SCI);
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