| 播种期和密度对直播油菜产量及其构成因素的影响 |
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| 引用本文： | 梅金安,梅少华,陈兴国,程应德,吴海亚,夏起昕,翟中兵,周雨亭,郭熙发.播种期和密度对直播油菜产量及其构成因素的影响[J].湖北农业科学,2011(21):4337-4340. |
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| 作者姓名： | 梅金安 梅少华 陈兴国 程应德 吴海亚 夏起昕 翟中兵 周雨亭 郭熙发 |
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| 作者单位： | 湖北省武穴市农业局;湖北省武穴市大法寺农技中心; |
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| 基金项目： | 国家重大科技支撑计划项目(2006BAD21B03) |
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| 摘 要： | 以油菜(Brassica napus L.)华油杂9号和华双5号为试验材料,研究了播种期和密度对直播油菜单株性状及产量构成的影响。结果表明,品种、播种期及播种期与密度互作对产量的影响达极显著水平。华油杂9号比华双5号增产,主要原因是单株有效角果数增多;早播有利于直播油菜冬前个体生长,单株分枝数、单株有效角果数、每角粒数和千粒重均有所增加;而不同播种期所要求的最适密度不同,早播条件下低密度更能发挥增产潜力,迟播条件下增加播种密度、加大群体的增产效应更加明显。
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| 关 键 词： | 油菜(Brassica napus L.) 播种期 密度 产量 产量构成因素 |
Effect of Sowing Time and Density on Yield and Yield Components of Direct-seeding Rapeseed |
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| MEI Jin-an,MEI Shao-hua,CHEN Xing-guo,CHENG Ying-de,WU Hai-ya,XIA Qi-xin,ZHAI Zhong-bing,ZHOU Yu-ting,GUO Xi-fa.Effect of Sowing Time and Density on Yield and Yield Components of Direct-seeding Rapeseed[J].Hubei Agricultural Sciences,2011(21):4337-4340. |
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| Authors: | MEI Jin-an MEI Shao-hua CHEN Xing-guo CHENG Ying-de WU Hai-ya XIA Qi-xin ZHAI Zhong-bing ZHOU Yu-ting GUO Xi-fa |
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| Institution: | MEI Jin-an1,MEI Shao-hua1,CHEN Xing-guo1,CHENG Ying-de1,WU Hai-ya2,XIA Qi-xin1,ZHAI Zhong-bing2,ZHOU Yu-ting2,GUO Xi-fa2(1.Wuxue City Bureau of Agriculture in Hubei Province,Wuxue 435400,Hubei,China,2.Dafasi Agricultural Extension Services Centre in Wuxue City of Hubei Province,Wuxue 435404,China) |
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| Abstract: | Huayouza 9 and huashuang 5 were used to study the effect of sowing date and plant density on direct seeding rapeseed traits and yield components.The results showed that variety,sowing date and interaction of sowing time and density significantly affected yield.The yield of Huayouza 9 was larger than huashuang 5,mainly due to the increase of effective pods per plant.Early sowing was conducive to individual growth of direct-seeding rape before winter;the number of branches per plant,effective pod number per p... |
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| Keywords: | rapeseed(Brassica napus L ) sowing date density yield factors of yield |
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