Effects of Agricultural Substrates on Growth and Yield of Lentinus squarrosulus Mont.
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Abstract
Background and Objectives: White log mushrooms (Lentinus squarrosulus Mont.) are rich in nutrients, vitamins, and antioxidants but slowly grown. This experiment aimed to improve the cultured formulas for promoting growth and reducing the production cost of white log mushrooms.
Methodology: A completely randomized design with 5 replicates per treatment was used.
Main Results: The mother spawn experiment found that formula 7 (74% sorghum grains + 25% paddy grains + 1% glucose) and formula 6 (99% sorghum grains + 1% glucose) mixed with 1% glucose per bottle had more growth and mycelial density than the control formula 1 (100% sorghum grains). There were statistically significant differences (P < 0.05) between cultured formulas. The spawn run experiment of white log mushrooms in plastic bags presented that the higher proportion of rice husk increased growth rate, but mycelial density decreased. In addition, it was found that formula 2 (80% rubber sawdust + 10% rice husk + 5.5% rice bran + 2.5% ground leucaena + 1% lime + 0.8% gypsum + 0.2% epsom salt) and formula 3 (70% rubber sawdust + 20% rice husk + 5.5% rice bran + 2.5% ground leucaena + 1% lime + 0.8% gypsum + 0.2% epsom salt) had the mushroom yield of 146.31 and 139.40 g/bag and the biological efficiency (BE) of 42.05 and 41.94%, respectively which were not statistically different when compared to the control formula 1 (90% rubber sawdust + 5.5% rice bran + 2.5% ground leucaena + 1% lime + 0.8% gypsum + 0.2% epsom salt) with the yield of 150.14 g/bag and 43.51% BE.
Conclusions: This result showed that 20% of rice husks could be replaced with rubber sawdust to reduce the production costs of white log mushroom.
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References
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