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http://dx.doi.org/10.14480/JM.2020.18.4.317

Cause of undeveloped primordium formation according to incubation temperature of new oyster mushroom cultivar 『Heuktari』 for bottle cultivation  

Choi, Jong In (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Kim, Jeong Han (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Gwon, Hee Min (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Lee, Yun Hae (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Shin, Bok Eum (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Gu, Ok (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Ha, Tai Moon (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Jung, Gu Hyun (Mushroom Research Institute, Gyeonggido Agricultural Research & Extension Services)
Publication Information
Journal of Mushroom / v.18, no.4, 2020 , pp. 317-322 More about this Journal
Abstract
This experiment was conducted to solve the failure of fruiting body production in the bottle cultivation of the oyster mushroom cultivar 'Heuktari'. The effects of incubation temperature on primordium formation and fruiting body yield of the oyster mushroom cultivar 'Heuktari' were investigated. The proper temperature for mycelium growth of 'Heuktari' on potato dextrose agar (PDA) medium is 23-26℃. The mycelial growth of 'Heuktari' was faster than that of Chunchu 2ho. During mycelial culture in sawdust medium, the temperature of the medium in the bottle initially increased, reached the highest point in the middle of the culture, and then decreased. The higher the set temperature, the shorter the incubation period. When the incubation temperatures were 20℃ and 24℃, respectively, the undeveloped primordium formation rates were low (1.8% and 4.2%, respectively). However, the rate of undeveloped primordium formation increased, and the yield decreased at incubation temperatures of 16℃ and 28℃. Mushroom farms that set incubation temperatures to 18℃ and maintained the medium temperature at less than 28℃ showed undeveloped primordium formation rates ranging between 0.3-0.8%. The rate of undeveloped primordium formation increased and the yield decreased in the farms with high incubation temperatures (above 28℃). We found that in order to reduce undeveloped primordium formation, the air inside the incubation room should be circulated continuously so that the temperature of the medium does not rise above 28℃, and dense incubation conditions should be avoided.
Keywords
Heuktari; Incubation temperature; Oyster mushroom; Undeveloped primordium formation;
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