摘要： 以黄淮南片主产麦区广泛种植和新近育成推广的12个小麦品种为供试材料，对籽粒灌浆特性进行研究。结果表明：籽粒平均灌浆速度及最大灌浆速度均与百粒重、籽粒体积和籽粒最大体积呈极显著的正相关；籽粒灌浆持续期仅与饱满指数呈显著的正相关，而与百粒重无显著相关。供试品种的籽粒平均灌浆速度和最大灌浆速度，均以郑州853、陕农7859为最快，灌浆持续期最短，属晚花基因型品种；冀麦5418和徐州21的灌浆持续期最长，属早花基因型品种。还探讨了黄淮麦区南片小麦籽粒灌浆模式。

关键词: 小麦, 籽粒, 灌浆速度, 灌浆持续期, 生长度-日

Abstract: Twelve winter wheat cultivars that were widely planted in South Huang-Huai region were used to study their grain filling characters.Conclusions were obtained as follows: Significantly positive relationships were found between mean grain filling rate, maximum grain filling rate and 100 grain weight, kernel volume, kernel maximum volume.It was grain filling index, not 100 grain weight, that had significant relationship with grain filling duration.Among the cultivars used, Zhcngzhou 853, Shannong 7859 had the biggest mean grain filling rate and maximum grain filling rate, with the shortest grain filling duration.They belonged to the genotype of late flowering.The grain filling durations of Ji 5418 and Xuzhou 21 had the longest grain filling duration, and they belonged to the genotype of early flowering.In addition, the suitable grain filling pattern in South Huang-Hai region was also discussed.

Key words: Wheat, Grain filling rate, Grain filling duration, Degree-day