播期和密度对襄麦D31籽粒产量及品质的影响  

Effect of Sowing Date and Planting Density on Grain Yield and Quality of Wheat Variety Xiangmai D31

作　　者：刘莹[1,2] 唐清[1,2] 王立峰[1,2] 张鹏飞[1,2] 陈科海[1,2] 卢阳[1,2] 彭萍[1,2] 左珍喜 谭永强[1] 汤三明[1] 赵翠荣[1,2] LIU Ying TANG Qing WANG Lifeng ZHANG Pengfei CHEN Kehai LU Yang PENG Ping ZUO Zhenxi TAN Yongqiang TANG Sanming ZHAO Cuirong(Xiangyang Academy of Agricultural Sciences, Xiangyang, Hubei 441057, China Yangtze University,Jingzhou, Huhei 434023 ,China)

机构地区：[1]襄阳市农业科学院,湖北襄阳441057 [2]长江大学,湖北荆州434023

出　　处：《麦类作物学报》2017年第3期376-381,共6页Journal of Triticeae Crops

基　　金：国家小麦产业技术体系建设项目(CARS-3-2-3801A);湖北省农业科技创新中心资助项目(2007-620-001-03);主要粮食作物产业化湖北省协同创新中心资助项目;湖北省小麦工程技术研究中心项目

摘　　要：为探明小麦新品种襄麦D31对播期和密度的反应规律,于2015-2016年度在湖北省襄阳市农科院进行了不同播种期和不同播种密度的二因素裂区试验。结果表明,在2015年10月14日至11月8日间,播期对襄麦D31的穗粒数影响不显著,播期因为对有效穗数和千粒重作用显著而对籽粒产量产生显著影响,以10月29日播种的平均产量最高,达7 329.5kg·hm^(-2)。在180万~315万·hm^(-2)范围内,播种密度对千粒重的影响不显著,有效穗数和穗粒数随播种密度的增加分别呈现显著提高和显著下降的趋势;播种密度对籽粒产量影响不显著,以180万·hm^(-2)密度时的产量最大。容重、蛋白质含量、湿面筋含量等品质指标对播期和密度反应趋势不同。综合各项试验结果,为争取产量和品质的协同提高,襄麦D31(2015年)适宜播期为10月24日至11月3日,适宜密度为180万·hm^(-2)左右,以10月29日播种产量和品质最佳。In order to investigate the response of a newly bred wheat variety Xiangmai D31 to sowing date and planting density,a field experiment with split plot design was conducted at Xiangyang Acade- my of Agricultural Sciences in Hubei Province during 2015--2016 growing season. The results showed that the grain yield of Xiangmai D31 were significantly different among sowing dates from Oct. 14 to Nov. 8 due to significant influences on spike number per hm^2 and 1 000-grain weight, but there was not significant influence on grains per spike. Results showed that the maximum grain yield was obtained on sowing date of Oct. 29, with average yield of 7 329. 5 kg·hm^-2. The planting density study from 1 800 000 to 3 150 000 seedlings per hm2 showed that 1 000-grain weight was insensitive to different gested that the suitable sowing date for Xiangmai D31（in 2015） should be from Oct. 24 to Nov. 3 and the suitable planting density should be 1 800 000 seedlings per hm^2 with the optimum yield and quality sown on Oct. 29.

关 键 词：襄麦D31 播期 密度 产量 品质 

分 类 号：S512.1[农业科学—作物学] S311