ワカメ葉状部生長量の簡便測定法
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概要
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A simple and secure method for growth estimation of blades has been devised where punching-holes along the midribs in blades are applied as growth markes of the blades in Undaria pinnatifida. The growth of blades in the apical direction was dependent upon the restricted regions which were contiguous to the lowest margin of the blades. The restricted regions expanded according to the growth of the blades, and the maximum distance from the lowest margin to the restricted growth regions measured 39.53cm. Exact growth estimation of the blades has been accomplished by measuring the distance moved by the punching-holes along the midribs at 40cm or over 40cm from the lowest margin of the blades in the present organism.