整个灌浆期氮素供应充足提高了籽粒库活性和碳氮代谢水平，促进了籽粒库容建成和库充实；
Sufficient nitrogen supply during grain filling period promoted kernel growth by improving carbon-nitrogen metabolism and sink activity of kernels.
结果表明，在籽粒灌浆初期，高温环境下灌浆充实的籽粒，其稻米的垩白增加、透明度变差、整精米率下降，对出糙率及精米率没有明显影响。
The results showed that at the early stage of milk filling, the grains of fully milk filling under high temperature had a higher chalkiness, lower transparency, and lower rate of white rice.
由此说明，部分亚杂组合籽粒充实不良的主要原因是弱势粒灌浆启动期滞后与灌浆速率小。
These results show that the main causes of poor grain filling are later filling initiation and lower filling rate of inferior grains.
灌浆期，籽粒充实度差的品种无机磷含量明显高于籽粒充实度好的品种。
While at grain filling stage, inorganic phosphorus content was obviously higher than that in the varieties with good grain plumpness.
籽粒灌浆速率、籽粒充实率、粒重和淀粉积累速率与蔗糖合酶活性呈显著正相关。
The grain filling rate, grain filling percentage, grain weight and starch accumulation rate were positively and significantly correlated with the SuSase activity in grains.
说明灌浆期特别是灌浆初期籽粒库的生理活性低是亚种间杂交稻籽粒充实不良的重要原因。
It was suggested that low sink activities in grain filling period, especially at early stage, account for an important reason for poor grain plumpness in IHR.
灌浆期，籽粒充实度差的品种无机磷含量明显高于籽粒充实度好的品种。
From booting stage to flowering stage, the contents of phytate and inositol in the varieties with good grain plumpness were obviously higher than those in the varieties with poor grain plumpness.
灌浆期，籽粒充实度差的品种无机磷含量明显高于籽粒充实度好的品种。
From booting stage to flowering stage, the contents of phytate and inositol in the varieties with good grain plumpness were obviously higher than those in the varieties with poor grain plumpness.
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