选取早籼、早杂、晚粳和晚杂的代表品种各一个，用１４Ｃ－葡萄糖作为同化物的供给源，分别通过直播和移栽两种方式，研究群体条件下，水稻各种类型个体（主茎与分蘖、秧田分蘖与本田分蘖、一次分蘖与二次分蘖）之间同化物的运转与分配。结果表明，同化物从一个标记个体向另外非标记个体运转时，皆遵循近距优先、上位优先和强活性优先原则。 A representative variety of early indica, early hybrid, late japonica and late hybrid was selected. 14C-glucose was used as the supply source of assimilation. Main stem and tillering, seedling tillering and Honda tillering, a tiller and secondary tillering) between the operation and distribution of assimilate. The results showed that when assimilates run from one labeled individual to another non-labeled individual, they follow the principle of prioritization, prioritization and prioritization.