【摘要】 为探明不同播种期和播种密度对小麦新品种济麦44产量和品质的影响，筛选适宜的播期和播种密度。2019—2020年度在山东省德州市德城区黄河涯镇试验地就济麦44进行了不同播期和播种密度的随机区组试验。结果表明，济麦44籽粒产量和品质对不同播期和播种密度处理组合的反应略有不同，在产量方面，播期10月5日+基本苗180万/hm~2处理、播期10月15日+基本苗270万/hm~2处理和播期10月25日+基本苗315万/hm~2处理组合的产量较高，处理组合间差异不显著；在产量构成要素来看，3个处理组合在千粒重、有效穗数和穗粒数方面均表现较好；在品质方面，虽大部分处理组合间均表现不显著，但从蛋白质含量、稳定时间、吸水率和沉淀值等几个方面综合来看，播期10月5日+基本苗180万/hm~2处理、播期10月15日+基本苗270万/hm~2处理和播期10月25日+基本苗315万/hm~2处理组合的均值表现总体较好。因此，济麦44在黄淮海冬麦区适宜的参考播期和播种密度为10月5日、基本苗180万/hm~2;10月15日、基本苗270万/hm~2;10月25日、基本苗315万/hm~2。更多还原

【Abstract】 To explore the effects of different sowing dates and planting densities on the yield and quality of new wheat variety Jimai 44, the appropriate sowing dates and planting densities were screened. A randomized block experiment with different sowing dates and planting densities were conducted on Jimai 44 in the experimental field of Huangheya Village, Huangheya Town, Decheng District, Dezhou City, Shandong Province in 2019-2020. Results showed that the grain yield and quality of Jimai 44 had slightly different responses to different sowing dates and sowing densities. In terms of yield, the yields of D1 Q1, D2 Q3 and D3 Q4 were higher. And there were no significant differences between the three treatments; In terms of yield components, the three treatments performed well in 1 000-grain weight, effective panicle number and grain number per panicle; In terms of quality, although most of the treatment combinations were not significant, the average values of D1 Q1, D2 Q3 and D3 Q4 were generally better in terms of protein content, stability time, water absorption and sedimentation value. Therefore, the suitable reference sowing date and planting density of Jimai 44 in Huang-Huai-Hai winter wheat region were as follows: October 5,basic seedlings 180×10~4/hm~2;October 15,basic seedlings 270×10~4/hm~2;October 25 th, basic seedlings 315×10~4/hm~2.更多还原