播期和播量对冬小麦产量和品质的影响  

Effects of Sowing Date and Sowing Density on Grain Yield and Quality of Winter Wheat

作　　者：李新强[1,2] 高阳[1,2] 黄玲[1,2] 邱新强 孟兆江[1] 王和洲[1] 段爱旺[1,2] 

机构地区：[1]中国农业科学院农田灌溉研究所,河南新乡453002 [2]农业部作物需水与调控重点开放实验室,河南新乡453002 [3]河南省水利科学研究院,郑州450000

出　　处：《灌溉排水学报》2014年第2期17-20,共4页Journal of Irrigation and Drainage

基　　金：现代农业产业技术体系建设专项资金(CARS-3-1-30);公益性行业(农业)科研专项(201203770);中央公益性科研院所基本科研业务费专项;国家自然科学基金项目(51079153)

摘　　要：研究了3个播期和3个种植密度对4个品种冬小麦产量、籽粒品质和水分利用效率的影响。结果表明,早播、低种植密度有利于提高小麦产量和水分利用效率,晚播且适当增加播量也可以在一定程度上增加产量和水分利用效率,但增产不显著。晚播和低种植密度有利于提高冬小麦氨基酸、蛋白质等品质性状。4个冬小麦品种耗水量随着播期的延迟而呈逐渐降低趋势。Field experiments were conducted to investigate effects of different sowing dates and sowing den- sities on grain yield, quality and water use efficiency （WUE） of winter wheat. Results indicated that grain yield and WUE were improved in the treatment of early sowing date and low sowing density. Grain yield and WUE could also be improved in a certain degree in the treatment of late sowing dates with higher so- wing density, but yield increased indistinctively. Quality characters of winter wheat, including amino acid content, protein content and etc, were improved in the treatment of late sowing date and low sowing densi- ty. Water consumption of four wheat cultivars tended to decrease ~raduallv with the delay of sowing date.

关 键 词：播期 播量 产量 籽粒品质 水分利用效率 

分 类 号：S512.1[农业科学—作物学]