播种期和种植密度对冬小麦百农898品质和产量的影响

Effects of sowing date and planting density on quality and yield of winter wheat Bainong 898

以冬小麦百农898为材料,采用裂区试验设计,分析了播种期和种植密度对百农898品质和产量性状的影响.结果表明:播种期显著影响百农898的品质和产量性状,而种植密度对测试性状的影响相对较小.随播种期的推迟,湿面筋含量、蛋白质含量和沉降值等品质性状以及千粒重和产量均呈下降趋势;种植密度为240万株/hm2时,百农898的湿面筋含量、蛋白质含量、沉淀值和硬度均最高,产量和千粒重也较高.因此,兼顾高产优质的目标,百农898的适宜播期为10月5日,适宜种植密度为240万株/hm2.

Winter wheat line Bainong 898 was used to study effects of sowing date and planting density on quality and yield of wheat.This experiment treatments applied in a split plot design,and the main treatment was sowing date which had three levels.The results showed that sowing time significantly affected the quality and yield traits of Bainong 898,however, planting density has little influence on the tested traits.Quality traits including wet gluten content,protein content,and zeleny,et al.,yield and 1000-grain weight declined with delay of sowing date.Bainong 898 had the highest value for wet gluten content,protein content,zelency,and hard index,and higher value for yield and 1000-grain weight,when planting density was 240×10^4 ptants/hm2.Hence,both high yield and quality,the suitable sowing date was October 5th,and suitable planting density was 240×10^4 plants/hm2 for Bainong 898.