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• Enrichment trials with straw substrate to produce Agaricus bisporus (Lge., Sing.)

  7-9.

  S. Balázs

  M. Kovácsné Gyenes

  K. Sándorné Ferenc

  A. Kovács

  Views:

  124

  Everywhere in the world button mushroom is cultivated on heat-treated horse manure or on a compost mixture of straw, horse manure and chicken manure. In the ZKI trials continued on straw which seemed to be a simple and cheap substrate. To improve yield the N-content of the straw was increased by mixing it with wheat bran, alfalfa flour and ProMycel. Enriching agents were added to the dry heat-treated straw (100 "C) at 1, 2, 3 weight per cent. All the 3 agents increased yield as related to control. The highest yield was obtained with ProMycel.

• Fungicide resistant Trichoderma strains causing compost infection in shiitake production

  67-70.

  Gy. Turóczi

  M. Kovácsné Gyenes

  L. Vajna

  S. Balázs

  Views:

  146

  Trichoderma infection represents the major problem of shiitake production in the growing house of the Research Institute at Kecskemet. Heavy infections occur mainly on the compost before spawn run. All the isolated strain belongs to the species Trichoderma harzianurn, but morphology of the colony indicates that there are more strains liable for the infection. Source of infection remained unclear but the Trichoderma strains can be considered as weed moulds rather than true pathogens of shiitake. All the Trichoderma isolates showed unusual high degree of resistance to fungicides.