Analysis of inter-branch relationships in the tree individual based on C/N sink-source balance

每棵枫树中有一半的枝条保持不处理(对照枝条，CBS)，而对于另一半的枝条(操纵枝条，MBS)，光照强度或叶面积(均与光合源活性有关)或新梢伸长(源/库活动)降低。操纵行为也影响了哥伦比亚广播公司在操纵当年和第二年的两家分支机构。枝条直径生长受光照的影响最大，其次是枝条伸长和叶面积。为了了解油茶生殖枝在多大程度上是自主的，我们通过选择营养枝或生殖枝，或将生殖枝去叶，并用光合作用标记的相邻枝来控制繁殖枝与相邻枝之间的库源平衡。有叶的未标记枝的&lt；13&gt；^C的原子%没有增加，而去叶的未标记枝的原子%显著增加。这两个实验的结果为树木生长建模奠定了基础。

Half the branches in each Acer rufinerve tree were kept untreated(control branches, CBs), and, for the others(manipulated branches, MBs), either light intensity or leaf area(both relating to photosynthetic source activity) or shoot elongation(source+sink activities) was reduced. The manipulations also affected CBs in the year of manipulation and both branches in the next year. The branch diameter growth was most affected by light, followed by shoot elongation and leaf area, in that order. To know to what extent reproductive shoots are autonomous in Camellia sasanqua, we manipulated the sink-source balance between the reproductive shoots and their adjacent shoots by selecting vegetative or reproductive adjacent shoots, or defoliating the reproductive shoots, and photosynthetically labeled adjacent shoots with<13>^C. The atom% of<13>^C did not increase in the unlabeled shoots that had leaves, whereas that in the defoliated, unlabeled shoot was significantly increased. The results of these two experiments are fundamental basics for the tree growth modeling.