水稲の窒素代謝に関する研究 : II 重窒素を利用せる研究(其1)

概要

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Rice plant were supplied 14 days before heading with (N^<15>H_4)_2SO_4 containing 5.67 atom per cent excess. At the periods of heading and full mature, plants were heavested, separated into several parts, and analyzed for their nitrogen content and concentration of N^<15>. The high level of N^<15> in ears, culms, and boot leaves at heading as contrasted with other parts, and comparison of N^<15> concentration between two periods suggested that the principal parts of N^<15> were utilized as the raw materials for the growth of those organs which were at their highest activities. N^<15> Which translocated in the leaves at heading were regard as storage nitrogen, because they were gradually removed to other parts. In the roots N^<15> were utilized both for the formation of new rooots and storage nitrogen.
社団法人日本土壌肥料学会の論文
1950-12-30