Selecting the maize hybrids,Zhengdan 958,Denghai 605,Jundan 20,Xianyu 335,Denghai 618,Xianyu 688 and Dika 517,widely cultivated in Shandong Province,as materials,the grain filling rate, dehydration rate,kernel moisture content and yield were studied.The results showed that the grain filling rate was different among different maize hybrids.Dika 517,Denghai 618 and Xianyu 688,which had higher yield,owned higher grain filling rate.The grain dehydration rate among different maize hybrids was also differ-ent.Dika 517 had higher dehydration rate and lower kernel moisture content,while Denghai 605 had the low-est dehydration rate.%选用山东种植面积较大玉米品种郑单958、登海605、浚单20、先玉335、登海618、先玉688、迪卡517为试材，对其灌浆速率、脱水速率、籽粒含水量及产量进行研究。结果表明，供试品种具有不同的灌浆特性，产量较高的迪卡517、登海618、先玉688具有较高的灌浆速率；各品种灌浆期脱水速率亦不同，迪卡517脱水速率较高，收获时含水量较低，登海605脱水速率最低。
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