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对不同库源类型的水稻品种汕优６３（源限制型）和泗稻８号（库限制型）不同蘖位、不同花位的籽粒灌浆特点和器官库源协调关系进行了研究。结果表明：（１）不同蘖位间灌浆时间顺序与分蘖发生次序一致，不同花位灌浆时间顺序与开花次序一致；（２）开花越早，灌浆强度越大；（３）汕优６３和泗稻８号弱势花均有明显的阶段灌浆现象，第２阶段灌浆干物质积累量大于第１阶段灌浆干物质积累量；（４）泗稻８号和汕优６３籽粒干物重中，来自营养器官贮藏的干物质分别占１３．１６％和２２．８７％，其中茎秆贡献最大；（５）泗稻８号单茎干物重在灌浆后期回升０．２０２１ｇ，但其叶片、叶鞘以及汕优６３各营养器官干物重回升不明显。
The relationship between grain filling characteristics and organism source and source at different tillering positions and different flowerbeds in Shanyou 63 (source restricted type) and Sishui 8 (limited type) was studied. The results showed that: (1) The sequence of filling time was the same as that of tillers at different tillers. The order of filling time was the same as that of flowering at different tillers. (2) The earlier the inflorescence, the greater the grouting intensity. (3) The weaker flowering rice had significant stage filling phenomenon, the second stage filling dry matter accumulation was greater than the first stage filling dry matter accumulation; (4) Sishao 8 and Shanyou 63 heavy grain dry matter, from vegetative organs The dry matter content of stored matter accounted for 13.16% and 22.87%, respectively, of which the stalk contributed the most. (5) The dry weight of single stem of Sishui No.8 rose 0.2021g at the later filling stage, but the leaf sheath and Shanyou 63 Dry weight of vegetative organs did not increase significantly.