Ear mushroom is one of edible wood rotting fungi that has been already consumed by community. Mushroom's media was made of sawdust with addition of 12 or 16% rice bran, 3.2% lime, 0.4 % gypsum, urea or trisodiumphosphate 0.4% and water then being composted for 1, 3, 5 and 7 days. Media samples were grouped into A and B, where sterilized media A were inoculated with brown ear mushrooms HHBI-312, HHBI-326 and black ear mushrooms HHBI-318, HHBI-331 and those of media B were inoculated by black ear mushrooms Biological Conversion Efficiency (BE) was calculated based on the ratio of the mushroom yield in fresh condition to the dry weight. Results indicated that the high yield of ear mushroom was obtained on composting media for 3 and 5 days periods. The average yield of HHBI-312, HHBI-326 on media A were 58.88 grams dan 60.51 grams ( EB 10.96% and 10.92%), and for HHBI-318, HHBI-331) were 67.5 grams and 101 grams (EB 12.38% dan 18.56%), respectively. Urea addition on the media tend to increase the BE value of However, it found that the yield and BE value of on media consist of urea were higher than that on media consist of trisodiumphosphate. The productivity of HHBI-331 on B-media added with 16% ricebran (102.06 g, BE 18.73%) revealed higher than that which added with 12% ricebran (79.94 g, BE 17.59%). Therefore, HHBI-312 and HHBI-331 selected for further mushroom production.

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Fungal resistance of five wood species from Ciamis: tangkalakHassk cangkring Lour kayu putih Powell ki tanah D.C and huru leueur Blume. was observed using Kolle-flask method. Wood samples of inner and outer parts of the log were prepared from three trees of every species. Wood samples were tested against eleven strain of decaying fungi. The results show that tangkalak and ki tanah woods are classified as resistant (class II), while cangkring, kayu putih and huru leueur woods fall into not-resistant (class IV). In general, the weight loss of samples taken from outer part is greater than those taken from inner part of the logs. It indicates that wood samples taken from outer part (not resistant, class IV) is less resistance than the inner part (moderately resistant, class III). There were also resistant variations between trees. In those five wood species, for example, the first tree (P-I) belongs to class III, however the second and third tree (P-II and P-III) falls in to class IV. The highest weight loss was recorded in the inner part log of tree P-I of cangkring, which was exposed into HHBI-324. The wood fungus decaying capability from the highest to the lowest are HHBI-324 HHBI-348 sp. HHBI-209 sp sp. sp. and .

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