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KMID : 0379120000280020067
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Korean Journal of Mycology
2000 Volume.28 No. 2 p.67 ~ p.72
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Influence of Soaking Time of Paddy Straw on the Mycelial Growth of Oyster Mushroom , Pleurotus spp.
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Baik Su-Bong
Jhune Chang-Sung
Jang Gab-Yul
Choo Chang-Ho
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Abstract
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The purpose of this study was to investigate the change of water content in mushroom substrate, paddy straw, and the mycelial growth of oyster mushroom by various soaking time. The water content of paddy straw was gradually increased as the soaking time was getting longer. These experiments also showed that the water content in the upper part of paddy straw was less than that of the low part. The mycelial growth was the good between 4 and 12 hours soaking treatment, showing faster growth and higher density in the lower part than the upper part. However we could not found any significant variation among 5 strains of oyster mushroom in the effects of the various soaking times and soaking part. The pH of the lower part substrates had a low pH compared with that of the upper part. When pathogens and mushroom mycelia were co-inoculated on paddy straw under various soaking conditions, the mushroom mycelial growth showed fast and high density according to the increase of the soaking time. The experiment related to water transport reveals that it is not easy to move into upper part, but only soaked part by adding water is available to absorb enough water. Old straw was much better than the straw new this year one for water absorption, mycelial growth and mycelial density.
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KEYWORD
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Oyster mushroom, Pleurotus, Soaking time, Mycelial growth
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