山东农业科学2017，Vol.49Issue(3)：37-41,5.DOI:10.14083/j.issn.1001-4942.2017.03.007
播期和种植密度对冬小麦节水新品种衡S29产量及相关因素的影响
Effects of New Sowing Date and Planting Density on Yield and Yield Components of New Winter Wheat Cultivar Heng S29
摘要
Abstract
In order to clarify the high yield and efficiency cultivation technical measures of new winter wheat cultivar Heng S29,and provide a theoretical basis for large-scale application of the cultivar,the effects of sowing date and planting density on yield and its components were studied.The split-plot design was adopted in this trail including 5 sowing dates and 6 planting densities.The trail was carried out in dry-farming and water-saving experiment station,which located in Hujiachi Town in Shenzhou City of Hebei Province during 2014-2015.The results showed that the effects of sowing date on spike number per unit,kernels per spike,1 000-kernel weight and grain yield were significant.The effects of planting density on kernels per spike,1 000-kernel weight and grain yield were significant,while not significant on spike number per unit.With the delay of sowing date,the yield decreased.With the increase of planting density,the yield increased firstly and then decreased.Within certain limits,the spike number per unit and 1 000-kernel weight decreased with the delay of sowing date,but the kernels per spike increased;the kernels per spike and 1 000-kernel weight decreased with the increase of planting density.Comprehensive analysis showed that the suitable sowing date of Heng S29 was October 6th-17th,the best sowing date was October 6th-11 th,and the reasonable basic planting density were 2 700 ～3 300 thousand per hectare.关键词
冬小麦/衡S29/播期/种植密度/产量/产量因素Key words
Winter wheat/Heng S29/Sowing date/Planting density/Yield/Yield complonents分类
农业科技引用本文复制引用
李强,李慧敏,李丁,乔文臣,孙书娈,孟祥海,魏建伟,赵明辉,赵凤梧..播期和种植密度对冬小麦节水新品种衡S29产量及相关因素的影响[J].山东农业科学,2017,49(3):37-41,5.基金项目
国家小麦产业技术体系“衡水综合试验站”(CARS-3-2-3) （CARS-3-2-3）
国际合作项目CGIAR“国际挑战计划” （）
