| 不同油菜品种苗期叶柄硝态氮含量与产量及品质的关系 |
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| 引用本文： | 朱飞飞,王朝辉,李生秀.不同油菜品种苗期叶柄硝态氮含量与产量及品质的关系[J].干旱地区农业研究,2010,28(2):80-84. |
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| 作者姓名： | 朱飞飞 王朝辉 李生秀 |
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| 作者单位： | 西北农林科技大学资源环境学院,陕西,杨凌,712100 |
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| 基金项目： | 国家自然科学基金项目(30871596和40671107);;国家科技支撑项目(2006BAD25B09);;公益性行业(农业)科研专项(200803030) |
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| 摘 要： | 油菜是高需氮作物,有效的氮素养分管理是其高产、高效、优质生产的关键。采用大田试验方法,研究了不同施氮水平下18个品种油菜苗期叶柄硝态氮含量与其收获期产量和品质的关系。结果表明:同一施氮水平下,苗期不同油菜品种的叶柄硝态氮含量存在明显差异;土壤供氮充足的情况下,苗期叶柄硝态氮含量能反映收获时不同油菜品种间生物量、产量籽粒吸氮量、整株吸氮量变化;苗期油菜叶柄硝态氮含量与株高、分枝节位高度、单株角果数的相关关系受供氮水平的影响;一次有效分枝、每角粒数、千粒重的相关关系与苗期叶柄硝态氮含量无关;无论施氮水平如何,苗期油菜叶柄的硝态氮含量与籽粒各项品质指标均无显著相关。
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| 关 键 词： | 油菜 硝态氮含量 农学性状 产量 品质 |
Relationship of nitrate N concentration in petiole at seedling stage to seed yield and quality at harvest over rapeseed cultivars |
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| ZHU Feifei,WANG Zhaohui,LI Shengxiu.Relationship of nitrate N concentration in petiole at seedling stage to seed yield and quality at harvest over rapeseed cultivars[J].Agricultural Research in the Arid Areas,2010,28(2):80-84. |
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| Authors: | ZHU Feifei WANG Zhaohui LI Shengxiu |
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| Institution: | College of Resources and Environment;Northwest A & F University;Yangling;Shaanxi 712100;China |
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| Abstract: | Rapeseed is one of the high nitrogen-requiring crops.Effective management of nitrogen is the key for high yield,high efficiency and high quality rapeseed production.Field experiment was carried out to study nitrate N concentration in petiole at seedling stage and its relationship to seed yield and quality over 18 rapeseed varieties.The obtained results showed that petiole nitrate N concentrations were significantly different over rapeseed varieties at the same N application rate.Petiole nitrate N concentrat... |
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| Keywords: | rapeseed nitrate N concentration agronomic traits yield quality |
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