| 播期与密度对郑单958产量形成的影响 |
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| 引用本文： | 聂林雪,逄焕成,朱海燕,李玉义,于吉琳,吴亚男,齐华.播期与密度对郑单958产量形成的影响[J].玉米科学,2014,22(5):104-108. |
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| 作者姓名： | 聂林雪 逄焕成 朱海燕 李玉义 于吉琳 吴亚男 齐华 |
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| 作者单位： | 沈阳农业大学, 沈阳110866;中国农业科学院农业资源与区划研究所, 北京100081;托克托县农业技术推广中心, 呼和浩特010200;中国农业科学院农业资源与区划研究所, 北京100081;沈阳农业大学, 沈阳110866;沈阳农业大学, 沈阳110866;沈阳农业大学, 沈阳110866 |
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| 基金项目： | 公益性行业（农业）科研专项经费项目（201303130）、国家“十二五”科技支撑计划（2011BAD16B14） |
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| 摘 要： | 以典型耐密高产品种“郑单958”为试材,研究播期与密度对其子粒灌浆和产量及产量构成因素的影响。研究结果表明,随播期推迟和密度增加,子粒干物质积累量呈降低的趋势;灌浆进程随密度增大而延迟,播期对其影响相对较小。本试验条件下早播低密、早播中密、早播高密与中播低密、中播中密处理下产量较高,与其他各处理产量差异达到显著水平。“郑单958”适宜播期在4月21日至5月11日之间,适宜密度为45 000～67 500株/hm2。
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| 关 键 词： | 玉米 播期 密度 子粒灌浆 产量 产量构成因素 |
| 收稿时间： | 2013/10/14 0:00:00 |
Influence of Sowing Time and Density on Yield Formation of Zhengdan958 |
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| NIE Lin-xue,PANG Huan-cheng,ZHU Hai-yan,LI Yu-yi,YU Ji-lin,WU Ya-nan and QI Hua.Influence of Sowing Time and Density on Yield Formation of Zhengdan958[J].Journal of Maize Sciences,2014,22(5):104-108. |
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| Authors: | NIE Lin-xue PANG Huan-cheng ZHU Hai-yan LI Yu-yi YU Ji-lin WU Ya-nan and QI Hua |
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| Institution: | Shenyang Agricultural University, Shenyang 110866;Institute of Agricultural Resources and Regional Planning, CAAS, Beijing 100081;Agricultural Technology Promotion Center of Tuoketuo, Hohhot 010200, China;Institute of Agricultural Resources and Regional Planning, CAAS, Beijing 100081;Shenyang Agricultural University, Shenyang 110866;Shenyang Agricultural University, Shenyang 110866;Shenyang Agricultural University, Shenyang 110866 |
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| Abstract: | The typical close-resistant high-yielding variety "Zhengdan958" was used as the material to study the effect of sowing date and density on the grain filling, yield and yield component factors. The results showed that with the sowing date postponed, and the density increases, grain dry biomass accumulation showed a decreasing trend, grouting process delayed with the density increases, the impact of sowing date is relatively small. The treatments as early sowing and low-density, early sowing and medium-density, early sowing and high-density, medium sowing and low-density, medium sowing and density produced high yields, the yields different from other treatments and reached a significant level. Suitable sowing date of "Zhengdan958" was between April 21 to May 11, and density of 45 000-675 00 plants/ha. |
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| Keywords: | Maize Sowing date Density Grain filling Yield Yield component factor |
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