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http://dx.doi.org/10.4489/KJM.2002.30.2.099

Comparison in Mycelial Growth and Fruit Body Development According to Sterilization Condition of Substrate in Pot Cultivation of Pleurotus ostreatus  

Lee, Yun-Hae (Kwangju Mushrooms Experiment Station, Kyonggi-do Agricultural Research and Extention Services)
Cho, Yun-Jeong (Kwangju Mushrooms Experiment Station, Kyonggi-do Agricultural Research and Extention Services)
Chi, Jeong-Hyun (Kwangju Mushrooms Experiment Station, Kyonggi-do Agricultural Research and Extention Services)
Publication Information
The Korean Journal of Mycology / v.30, no.2, 2002 , pp. 99-103 More about this Journal
Abstract
The suitable sterilization conditions in pot cultivation of varieties of Chunchunutari-2-ho and Suhannutari-1-ho Pleurotus ostreatus were investigated. The substrate formulations for the cultivation consisted of 40% poplar sawdust, 40% waste cotton and 20% beet pulp (PWB), and 40% poplar sawdust, 40% cotton seed hull and 20% beet pulp (PCB). The increase in the sterilization temperature caused decrease in the pH of the substrate. The moisture content of PWB substrate increased by 1.8%, but that of PCB substrate decreased by 4.1 % after low temperature sterilization ($12hr\;at\;60^{\circ}C$). However, a little change in the sterilization at higher temperature ($6hr\;at\;100^{\circ}C\;and\;90min\;at\;121^{\circ}C$) did not alter the moisture content of both substrate appreciably. The duration of mycelial growth was longest and its density was lowest in low temperature sterilization ($12hr\;at\;60^{\circ}C$). The high pressure sterilization ($90min\;at\;121^{\circ}C$) of PCB substrate produced high yield (236.6 g/pot) and the highest biological efficiency (96.6%) for Chunchunutari-2-ho. On the contrary the high temperatures sterilization ($6hr\;at\;100^{\circ}C$) of PCB substrate resulted in the yield of 259.1 g/pot with the biological efficiency 94.9% for Suhannutari-2-ho.
Keywords
Pleurotus ostreatus; Pot cultivation; Sterilization codition;
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