Cultivation of Pholiota adiposa in the Sugi (Cryptomeria japonica) Saw Dust Based Media

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  • スギ鋸屑を利用したヌメリスギタケPholiota adiposaの栽培
  • スギ ノコクズ オ リヨウ シタ ヌメリスギタケ Pholiota adiposa ノ サイバイ

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Abstract

The cultivation of the edible mushroom, Pholiota adiposa in the Sugi (Cryptomeriajaponica) saw dust-based substrate containing Sugi saw dust, cotton hull, corncob meal and rice bran (Sccr) was investigated. The optimal temperature range for mycelial growth of P. adiposa wild strains was 20℃-30℃ and the optimal temperature was around 26℃. Growth did not occur at 40℃, and all but one strain named Oninome-B died after 5 days. The optimal initial pH value of the cultivation medium was around 6.5 and various initial pH values converged to 3.5-5.5 after cultivation. The C/N ratio and pH value of the Sugi saw dust-based substrate (Sccr) were suitable for mycelial growth and fruit body formation of P. adiposa. Adding cotton hull and corn-cob meal were effective to improve the water balance, decrease the C/N ratio and increase the pH value respectively. Packing 500g of the Sugi saw dustbased substrate (Sccr) into the Nameko bottle (800 ml), cultivating at 22.5℃ under dark conditions for about 10 weeks, germinating at 14℃ with over 95% RH and under around 700 Lux, a yield of over 150g of fruit bodies was attained by flushing twice. Although less than the Buna (Fagus crenata) saw dust-based substrate, the Sugi saw dust-based substrate is considered to be available for cultivating P. adiposa due to its low cost.

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