ESTABLISHING THE SELECTION METHOD FOR THE LENTINULA EDODES STRAINS RESISTANT TO TRICHODERMA SPP

Trichoderma, inoculation tests for cultures of 89 different shiitake ( Lentinula edodes) strains showed that the resistance of shiitake in a wood-powder medium correlated positively to that in 28-month-old bedlo gs when T. harzianum was inoculated. Mycelial growth rate of shiitake in an agar medium or in the wood-powder medium also was correlated wit h the resistance of shiitake bedlogs, although the interaction in the ag ar medium appeared to be irrelevant; The amount of damage to shiita ke caused by T. harzianum had a positive correlation with that by T. p olysporum both in the wood-powder medium and in bedlogs. Strains havin g a high wood-rotting ability in bedlogs tended to have the ability to reject Trichoderma in the wood-powder medium. The inhibition rates of shiitake mycelial growth by trichopolyn proved not to correlate to th e rate of damage by T. polysporum.