On the Behaviors of nutritional Elements in Cuttings

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  • さし穂内の養分元素の消長について
  • サシホ ナイ ノ ヨウブン ゲンソ ノ ショウチョウ ニ ツイテ

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Abstract

The influences of bed soil nutrient levels on the mineral contents in cuttings were studied. Doronoki (Populus Maximowiczii), Metasequoia (Metasepuoia glyptostroboides), Sugi (Cryptomeria japonica D. DON.) and Hinoki (Chamaecyparis obtusa ENDL.) were used as materials. The results obtained are summarized as follows:<br> 1. The incorporation of nutrients into cuttings from the bed soil was not observed at the first stage, but after rooting the rapid incorporation was observed on the desiduous trees.<br> 2. The behaviors of nutritional elements in cuttings of the desiduous trees (Doronoki and Metasequoia) are different from the everygreen trees (Sugi and Hinoki), that is, in the former one part of several mineral substances (K, P, N) in cuttings are disappeared due to budding and rooting but in the latter the translocation is very slow and a little.

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