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Supposing I have 8 strains of maitake (or 8 strains of portabella etc). First I inoculate 3 agar plates with each strain. Then I measure the speed that the mycelium colonizes each plate, and calculate the average speed of colonization. Then I take a fixed size slant from each strain and inoculate 8 bags containing the final substrate.
Is there a correlation between the speed of agar colonization and 1 the final biological efficiency? 2 the economical efficiency of the grow room (ie the weight of mushrooms in one cultivation room during one year?
I am interested in both personal experience and published papers.
I process 3000 production blocks per week of various species of specialty mushrooms. Only in experience, I have found that the faster the colonization of the agar from the specific mushroom the faster it is to colonization of the substrate, faster till first flush and above all it leads to less contamination. I have only found that the biological efficiency of the block is increased by the rate of spawn. With the increase of the rate of spawn, and selecting the fastest mycelium, I have increase yield and efficiency of the growing chambers.
I guess to summarize the faster the colonization of the agar the better! In every aspect of the process to fruiting.
Paul Stamets "Growing Gourmet and Medicinal mushrooms" pp 110-117 Could help you!