In fruit mature period, muskmelon had higher biomass in organic production system, but there was no significant difference on market yield in both systems.
果实成熟期，甜瓜在有机生产体系中生物量较高，但两种体系的市场产量差异不显著。
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That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.