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本文对华北落叶松(Larix principis-rupprechtii Mayr)人工幼龄树木的营养生长从发育解剖方面进行了观测研究,在茎叶的伸长生长,主干和根部的径向生长的形态、各类组织细胞的分生和结构的变化及干物质积累等方面,取得了结果。结果表明,华北落叶松幼树各部营养生长具有明显的季节周期性及相互依赖的节律;对这种幼树木材和树皮的形成及其同整体营养生长的关系进行了描述和分析;并对针叶树形成层活动的激素诱导、茎叶生长的养料供应及生长节律同丰产栽培和幼林抚育的某些关系进行了讨论。
In this paper, we observed and studied the vegetative growth of juvenile Larix principis-rupprechtii Mayr from the aspect of developmental anatomy. In terms of the growth of stem and leaf, the radial growth of stem and root, The change of meristem and structure and accumulation of dry matter, etc., and achieved results. The results showed that the vegetative growth of saplings of Larix principis-rupprechtii had obvious seasonal periodicity and interdependent rhythms. The formation and the relationship between the growth of the saplings and bark were described and analyzed. Hormonal induction of coniferous cambium formation, nutrient supply of stem and leaf and growth rhythm are discussed with some of the relationships between high yielding and young tending.