Effect of bedlog characters of shiitake, Lentinula edodes, on fruiting body formation

1993 Fiscal Year Final Research Report Summary

• Project/Area Number: 03660179
• Research Category: Grant-in-Aid for General Scientific Research (C)
• Allocation Type: Single-year Grants
• Research Field: 林産学
• Research Institution: The Japan Kinoko Research Center Foundation
• Principal Investigator: TSUBOI Masatomo The Japan Kinoko Res. Ctr. Foundation, Tottori Mycological Institute, Sub-head of Laboratory, 菌蕈研究所, 室長代理 (00106717)
• Co-Investigator(Kenkyū-buntansha): TOKIMOTO Keisuke The Japan Kinoko Res. Ctr. Foundation, Tottori Mycological Institute, Chief of S, 菌蕈研究所, 研究部長 (20088842)
• Project Period (FY): 1991 – 1993
• Keywords: Lentinula edodes / Log cultivation / Fruiting body formation / Bedlog characters / 材腐朽度

Research Abstract

Correlation analyzes between fruiting ability and some characters in Quercus serrata bedlogs (Variety Kinko-115, 1.5-year-old) revealed that the longs producing many fruiting bodies tended to be rotted well and to contain much glucosamine and free amino acids in the sapwood.
Quercus serrata logs spawned with the varieties of shiitake, Kinko-115 or Kinko-610 in Tottori-shi were shifted to woods in Iwate, Wakayama, Nara, Hyogo, and Tottori prefectures to raise bedlogs. After 14 months(Kinko-610) or 19(Kinko-115) months we carried the bedlogs back to Tottori-shi to compare the characters and fruiting ability.
In Kinko-115 bedlogs, the yield of an early fruiting was high in Wakayama bedlogs and low in Iwate bedlogs. Correlation analyzes among all bedlogs in each variety showed that fruiting yield has a negative correlation to the thickness of outerbark, and a positive correlation to the weight-loss of logs during bedlog raising. In the Kinko-115 bedlogs, amount of absorbed water at submergence of bedlogs and thickness of the innerbark correlated positively to fruiting body yield.