一、生态条件榆黄蘑靠菌丝生长在榆、桦、椴树的倒木、枯立木的枝干上。菌丝在23—27℃生长为好。低温生长缓慢,温度超过29℃时,生长同样有降低的趋势。榆黄蘑对酸碱度的适应范围较广,其最适PH 值为5.0—6.5。PH 值7.0—7.5时,菌丝生长略疏些,而PH 值达到8.5时,菌丝不能生长。榆黄蘑菌丝不仅能在榆木锯末培养基上生长,也能在杨木、桦木、椴木、柞木、水 First, the ecological conditions elm mushroom growth by mycelium elm, birch, lime trees down wood, dry wood on the branches. Mycelia grew well at 23-27 ° C. Slow growth of low temperature, the temperature exceeds 29 ℃, the growth also has a downward trend. Sylvestris versicolor to adapt to a wide range of pH, the optimum PH value of 5.0-6.5. PH value of 7.0-7.5, mycelium growth slightly more, and PH value reached 8.5, mycelium can not grow. Ulmus mushroom mycelium can not only grow on the elm sawdust medium, but also in poplar, birch, basswood, oak, water