Treatment of Japanese red pine (Pinus densiflora) root systems toinduce mycorrhizal formation in Tricholoma matsutake (I): Methods for guiding root growth by exposing the surface topsoil and covering the ground with different substrates

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  • FUJITA Tooru
    1) Kyoto Prefectural Agriculture, Forestry and Fisheries Technology Center, Tutiya1, Honjyou, Kyoutanba, Kyoto, 629-1121
  • FUJITA Hiromi
    1) Kyoto Prefectural Agriculture, Forestry and Fisheries Technology Center, Tutiya1, Honjyou, Kyoutanba, Kyoto, 629-1121

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Other Title
  • マツタケ菌根形成のためのアカマツの根系操作（Ⅰ）表土の掻き取りと被覆による根の誘導方法の検討
  • マツタケ菌根形成のためのアカマツの根系操作(1)表土の掻き取りと被覆による根の誘導方法の検討
  • マツタケキン コン ケイセイ ノ タメ ノ アカマツ ノ コンケイ ソウサ(1)ヒョウド ノ カキ トリ ト ヒフク ニ ヨル ネ ノ ユウドウ ホウホウ ノ ケントウ

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Japanese red pine is a host of the mushroom, Tricholoma matsutake. This study aimed to optimize a method for guiding the growth of Japanese red pine roots to the soil surface to induce mycorrhizal formation in Tricholoma matsutake. A ground cover experiment was conducted in a forested area in which the mineral soil layer was exposed by scraping the topsoil. The scraping strength required to expose the mineral soil layer was clarified and the surface of the treated area was covered with a variety of substrates. Finally, the number of growing pine root tips at the soil surface was enumerated in the treated area. Consequently, a method involving covering the soil with nonwoven fabric and soil, or soil-filled sandbags, was found to be the most effective for guiding the growth of roots to the soil surface. Further trials are necessary to clarify the optimal scraping strength as this may vary depending on the forest environment.

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