抽穗后15 d内、抽穗至成熟期茎鞘非结构性碳水化合物转运量显著降低，成熟期茎鞘中非结构性碳水化合物回流严重。

During the 15 days after heading or from heading to mature, translocation amount of stem-sheath stored NSC decreased significantly and in the mature, NSC reaccumulated seriously in the stem-sheath.

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结果表明，疏花处理后，茎鞘非结构性碳水化合物含量峰值出现时间推迟。

The results were as follows: Through the treatment of spikelet-removing, peak content of NSC in stem and sheath appeared later.

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