Lots of 14 C-glucose were transported to panicle and panicle base, little to leaf and stem.The absolute volume of 14 C-glucose which filled grain was high.

• 14C-葡萄糖向上运转于穗、穗颈的比例大，向下运转于其他茎叶的比例小，用于籽粒充实的绝对量高；