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复土泥的结构越是坚实致密,蘑菇的产量就越高。但要有下列条件:发菌期间用水量要比通常多;菌丝结菇前要把复土层上表部翻动或耙松,后者特别重要。用扩散速度表示为:发菌期间菌丝在培养料产生的气体代谢物向空间的扩散作用受到阻碍越大,则蘑菇产量就越高。但有一个条件即:这种受到阻碍的扩散作用在结菇前要恢复正常。许多有关的现象都可归因于CO_2的作用。但是别的挥发性代谢物(如丙酮、乙烯等)对诱导结子实体的微生物的影响也不能忽视。这可从上述有关复土泥结构的实验中看到,也可从其它研究工作(如薄复土层和厚复土层的试验;复土时加大豆粉和不加大豆粉的试验;慢结小白点<简称慢型>和快结小白点<简称快型>蘑菇菌株的试验以及不同时间用过量的代谢物挥发性组分处理的试验)中看到。
The more complex the structure of mud, the higher the yield of mushrooms. However, the following conditions must be met: the amount of water used during the bacteria should be more than usual; and the upper layer of the soil layer should be flipped or harrowed before the mycelium mushrooms. The latter is especially important. With the proliferation rate expressed as: mycelium in the culture material produced gas metabolites spread to the space obstructed the greater the greater the yield of mushrooms. However, there is a condition that this hindered proliferation will return to normal before the mushroom is started. Many related phenomena can be attributed to the role of CO_2. But other volatile metabolites (such as acetone, ethylene, etc.) to induce the fruiting bodies of micro-organisms can not be ignored. This can be seen from the above experiments on the behavior of the soil-in-mud structure, as well as from other studies (such as tests on thin and thick layers of soil; Knot white point (referred to as the slow type) and fast knot white point (referred to as fast type) mushroom strains and different time with excess metabolites volatile components of the experiment).