75. マイタケ生産における籾殻添加効果

概要

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When added to the culture media of edible mushrooms (Grifola frondose, Lentinus edodes, Pleurotus eriyngii and P. ostreatus), rice husks have been found to promote the growth of mycelia in laboratory scale experiments. To know if our results are applicable to the production of mushrooms in operating cultivation plants, days to harvest fruit bodies of G. frondose grown in plastic bags packed with solid media with or without rice husks were compared. In half number of the bags with rice husks at concentrations of 5mg/ml and 10mg/ml, mycelia grew to cover all the surface of solid media in 39 days and 36 days after inoculation respectively, to the contrary in those without rice husks, in 40 days. In half number of the bags with rice husks at a concentration of 10mg/ml, fruit bodies were harvested for shipment in 49 days after inoculation, to the contrary in those without rice husks, in 52 days. Furthermore no promotion was observed in the bags with rice husks at both concentrations of 5mg/ml and 20mg/ml. The harvested fruit bodies had no significant difference in fresh weights among bags whether rice husks were supplemented to the media or not. Thus rice husks can shorten days to harvest fruit bodies of G. frondose by about 3 days without reduction of yield.
植物化学調節学会の論文
2004-10-13