| 移栽密度对双低油菜苏油4号产量与品质的影响 |
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| 引用本文： | 沈明星,王海侯,孙华,施林林,陆长婴,吴彤东,陈凤生.移栽密度对双低油菜苏油4号产量与品质的影响[J].江西农业学报,2009,21(8):22-24. |
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| 作者姓名： | 沈明星 王海侯 孙华 施林林 陆长婴 吴彤东 陈凤生 |
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| 作者单位： | 1. 江苏太湖地区农业科学研究所,江苏,苏州,215155;农业部苏州水稻土生态环境重点野外科学观测试验站,江苏,苏州,215155
2. 江苏太湖地区农业科学研究所,江苏,苏州,215155 |
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| 基金项目： | 农业部行业计划项目，江苏省科技攻关项目，江苏省自主创新项目，苏州市科技攻关项目 |
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| 摘 要： | 通过田间试验,研究了移栽密度对苏油4号油菜籽产量及关键品质的影响效应。结果表明:(1)在6万~18万株/hm2的移栽密度范围内,随密度的加大,产量以极显著的幂函数趋势增加,增产原因在于通过密植极显著提高了产量形成关键时期的角果皮面积指数;(2)群体总角果数是提高苏油4号产量的关键因子,但每角粒数则是限制其高产形成的主要因素,千粒重对产量的贡献较小;(3)不同移栽密度条件下苏油4号油菜籽硫苷、蛋白质和棕榈酸、硬脂酸、油酸、亚油酸、亚麻酸、芥酸的差异不显著,但含油率依密度的增加而显著下降;(4)施纯氮262.5 kg/hm2条件下,苏油4号籽粒产量超4000 kg/hm2的适宜密度为18万株/hm2左右,适宜角果皮面积指数为4.9。
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| 关 键 词： | 移栽密度 苏油4号 油菜 产量 品质 |
Effect of Transplanting Density on Yield and Quality of "Double Low" Rape Suyou No.4 |
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| SHEN Ming-xing,WANG Hai-hou,SUN Hua,SHI Lin-lin,LU Chang-ying,WU Tong-dong,CHEN Feng-sheng.Effect of Transplanting Density on Yield and Quality of "Double Low" Rape Suyou No.4[J].Acta Agriculturae Jiangxi,2009,21(8):22-24. |
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| Authors: | SHEN Ming-xing WANG Hai-hou SUN Hua SHI Lin-lin LU Chang-ying WU Tong-dong CHEN Feng-sheng |
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| Institution: | 1.Institute of Agricultural Sciences of Taihu Area;Suzhou 215155;China;2.Key Scientific Observation & Experiment Station of Paddy Field Eco-environment;Ministry of Agriculture;China |
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| Abstract: | A field experiment was conducted to study the effects of transplanting density on the yield and key quality of "Double Low" rape variety Suyou No.4.The results showed as follows:(1) In the range of 60000~180000 plants/hm2,the yield increased by a significant power function trend as the transplanting density increased,because the surface area of rape pod index increased remarkably at the crucial stage of yield formation.(2) The No.of pod per unit area was the key factor to enhance the yield of Suyou No.4,whi... |
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| Keywords: | Planting density Suyou No 4 Rapeseed Yield Quality |
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