Abstract
This study was carried out to investigate the optimum rate of substrate composition in bottle cultivation of Grifola frondosa and had three rates of substrate composition of 67:11:22(T1), 68:15:17(T2) and 74:14:12(T3) as mixing rate of weight of dried oak sawdust, dried corn husk and dried bean-curd refuse. The rate of primordia formation of T3 was 65.8% which was lowest among all treatments. Contraction rate of disease of T1 was 9.8% which was highest among all treatments. Harvesting rate of T2 was 70.5% which was highest among all treatments. Fruit body weights per bottle of T1 and T2 were 85.5 g, 83.3 g respectively and there was not significant difference between those. Yield per 10,000 bottles of T2 was 587 kg and was 7%, 28% higher than those of T1 and T3, respectively. As a result, the rate of substrate composition of 68:15:17(T2) as mixing rate of weight of dried oak sawdust, dried corn husk and dried bean-curd refuse was appeared as optimum rate of substrate composition in bottle cultivation of Grifola frondosa..
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