Summary
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1.
Increased CO2 concentration in the air has a positive effect on mycelium growth in the cultivation ofPleurotus ostreatus, P. florida andP. eryngii (Agar cultures).
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2.
Between 16% and 22% CO2 in the air is the optimum for the growth of the 3 above-mentioned Pleurotus species.
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3.
Concentrations of 36 vol.% CO2 inhibited growth of all 3 species.
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4.
Both sterile and pasteurized straw substrata showed 20–25% (of vol.) CO2 3 days after inoculation. Mycelium growth was normal. CO2 concentration stands in relation to the amount of inoculation material, temperature, composition of substratum, and other environmental factors.
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5.
The stimulating effect of CO2 on the growth of the Pleurotus species studied and their high tolerance to CO2 have a special importance in Pleurotus farming.
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6.
Under semianaerobic conditions with high CO2 concentration in the gaseous phase of substratum, the competitive microorganisms are eliminated and Pleurotus mycelium can grow well in the non-sterile substratum.
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Zadražil, F. Influence of CO2 concentration on the mycelium growth of three pleurotus species. European J. Appl Microbiol. 1, 327–335 (1975). https://doi.org/10.1007/BF01382692
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DOI: https://doi.org/10.1007/BF01382692