The essential indicator for high yield population was high dry matter accumulation during grain filling stage.
提高花后物质积累量是玉米高产群体质量的本质指标。
While at grain filling stage, inorganic phosphorus content was obviously higher than that in the varieties with good 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。
The drought during the early filling stage accelerated wheat filling velocity and increased wheat grain weight, while the drought during the late filling stage restrained the wheat filling process.
灌浆前期干旱有促进灌浆和增加粒重的作用，而后期干旱对小麦灌浆有抑制作用，全程干旱使小麦的灌浆速率明显减弱。
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