On the subterranean Organ of wild Plants of Grassland : I. Miecanthus sinensis ANDERSON

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  • 草原植物の地下器官について : 第1報 ススキ(Miscanthus sinensis ANDERSON)
  • 草原植物の地下器官について-1-ススキ(Miscanthus sinensis ANDERSON)
  • ソウゲン ショクブツ ノ チカ キカン ニ ツイテ 1 ススキ Miscanthus sinensis ANDERSON

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The subterranean organ of Miscanthus sinensis was analyzed on the basis of four analytic habits: root morphology, root depth root area and vegetative propagation. Characteristics of the subterranean organ of Miscanthus sinensis are summarized as follows: Rm5, RdI, Rs2 and Rv9. The extention of the rhizomes occurs radially from the center of the clone and a dead center is formed in old stub. The expansion and branching of rhizomes are prevented by adjacent rhizomes. In the accumulate sand dune soil, the terestrial organs produced numerous adventious buds and roots and expand obliquely upward. In the grazed habitat, the rhizomes of Miscanthus sinensis occupy a shallow layer, are more or less thin and branching buds decrease. In the ungrazed habitat, the roots occur between 0 and 120cm depth and the working range is 0-50cm. In the grazing habitat the roots occur between 0 and 60cm and working range is 0-10cm, especially, the upper layer being occupied with thinner roots than those in lower layer. But it may be true that there are some shallow rooted plants which can invert the above and well suppress Miscanthus.

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