播期和密度对黄淮麦区弱春性小麦品种籽粒灌浆特性的影响  

Effects of Sowing Date and Planting Density on Grain-filling Characteristics of Weak-springness Wheat Variety in Huang-Huai Area

作　　者：吴少辉 田文仲 张园 张学品 冯伟森 杨洪强 邱军[2] 

机构地区：[1]河南省洛阳市农林科学院,河南洛阳471000 [2]全国农业技术推广服务中心,北京100125

出　　处：《江西农业学报》2014年第10期16-19,共4页Acta Agriculturae Jiangxi

基　　金：国家现代农业(小麦)产业体系(CARS-E-2-36);河南省现代农业(小麦)产业体系(S2010-10-02);农业技术试验示范专项(2130106)

摘　　要：研究了播期和密度对黄淮麦区弱春性小麦品种偃展4110籽粒灌浆特性的影响。结果表明:在不同播期或种植密度水平下,随着开花后天数的增加,偃展4110籽粒的千粒重均呈"S"型持续增加,其籽粒的灌浆速率均呈单峰曲线变化,在开花后20 d出现最高峰;适期早播和适当降低种植密度可以提高其籽粒的灌浆速率,增大粒重。The effects of sowing date and planting density on the grain - filling characteristics of weak - springness wheat variety Yanzhan 4110 in Huang - Huai area were studied. The results indicated that： at different sowing date or planting density levels, when the days after flowering increased, the 1000 - grain weight of Yanzhan 4110 revealed a S - shape increasing trend, and its grain - filling rate showed a single - peak curve change with a peak on the 20th day after flowering ; properly early sowing and appropriately reducing planting density could enhance the grain - filling rate of this variety, and increase its grain weight.

关 键 词：播期 密度 黄淮麦区 弱春性小麦 偃展4110 籽粒灌浆特性 

分 类 号：S511[农业科学—作物学]