水稲における発根節位別根群分離法

概要

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Root systems in cereals should be separated each other according to the locus of their branching nodes, if a shortened underground internode can be elongated artficially. The method deviced by the author to induce the artificial elongation of underground internodes, and the results obtained are as follows. Seedlings of sixth-leaf age were lie down on the seed-bed, and heaped of the earth over them from the roots to the top of the leaf-sheath of the fifth. About twenty days after the treatment mentioned above, seedlings were pulled out from the field, then observations were made. The internode of from the sixth to the ninth, as shown in the figure, has been elongated already about one to three cm. in length. Consequently, the roots of the sixth, seventh and eighth node have also been sprang out, if not yet crowdy. From these results, at the author's laboratory, experiments are now carried on to trace the translocation of radioactive P^<32>, which has been absorbed from the nodal roots under questions in the main stem or tillers.
社団法人日本土壌肥料学会の論文
1953-07-20