植物幹生体電位の直流特性

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We had so far investigated the bio-electric potential in plants Now, the mesurements are performed for the DC characteristics of the bole bio-electric potential of the outdoor trees. The available potential differences through the axial direction are observed between the upper part and the lower part of the bole. As regarding the deciduous tree, the large negative potentials are generated at the upper part of the bole against the lower part during both the autumn and the spring seasons, but the small positive potentials are observed during the winter season For the evergreen trees during the winter season, those bole bio-electric potentials are considerable infuluenced by the many environmental conditions. However, as far as the environmental conditions are same, those characteristics are quantitatively similar to the deciduous tree's one. We have simulated the diciduous agency by stopping to water the foliage plant "Doracaena". The similar DC characteristics of the bole bio-electric potential are indicated except the initial stage of the experiment.
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