本文通过对国产散生竹16属77种、5变种和15变型的地下茎解剖结构的比较观察研究，发现竹类地下茎解剖结构特征在种属间是有差异的。
Based on the comparative anatomical studies of rhizome of 16 genera 77 species, 5 varieties and 15 form of Chinese bamboos, the authors find that there are varieties in the genera and species.
另一方面，1～3年生毛竹竹壁密度的增加，对毛竹林生物量的增加也有一定的影响。
Furthermore, the increase of culm-wall density for 1~3 year bamboos has also the influence over the increase of biomass of bamboo groves.
文中众多的回归方程，揭示了牡竹实生幼苗的生长规律，在育苗条件相似的情况下，可用以预测预报牡竹幼苗的生长趋势，具有指导生产的实际意义。
These regression equations will reveal growth laws of seedlings from seeds of D. strictus. At similar raising conditions, they have practical effects on the prediction of growth trend of the seedling.
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