| 氮、磷、钾肥用量对油菜角果抗裂性相关性状的影响 |
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| 引用本文： | 刘婷婷,蒯婕,孙盈盈,杨阳,吴莲蓉,吴江生,周广生.氮、磷、钾肥用量对油菜角果抗裂性相关性状的影响[J].作物学报,2015,41(9):1416-1425. |
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| 作者姓名： | 刘婷婷 蒯婕 孙盈盈 杨阳 吴莲蓉 吴江生 周广生 |
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| 作者单位： | 华中农业大学植物科学技术学院, 湖北武汉 430070 |
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| 基金项目： | 本研究由国家科技支撑计划项目(2013BAD20B06, 2014BAD11B03), 国家现代农业产业技术体系建设专项(CARS-13), 国家公益性行业(农业)科研专项(201203096)和华中农业大学自主科技创新基金(2013PY001)资助 |
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| 摘 要： | 选用角果抗裂性存在显著差异的2个油菜品种,于2012—2014年进行氮肥(0、90、180、270和360 kg N hm–2)、磷肥(0、60、120、180和270 kg P2O5 hm–2)、钾肥(0、75、150、225和300 kg K2O hm–2)用量对油菜角果抗裂性相关性状影响的单因素试验。结果表明,氮、磷、钾肥用量对油菜抗裂角指数的影响均呈波峰曲线变化,华双5号和华航901达最大抗裂角指数的纯氮用量分别为160 kg hm–2和140 kg hm–2、P2O5为120 kg hm–2和160 kg hm–2、K2O均为180 kg hm–2;油菜抗裂角指数的变化大小因肥料种类而异,氮、磷、钾3种肥料中,钾肥对抗裂角指数的影响最大;不同氮、磷、钾肥用量处理条件下,角果果壳重和植株株高的变化是影响油菜角果抗裂角性的重要因素,可作为初步、快速筛选油菜抗裂角种质资源的重要指标。
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| 关 键 词： | 油菜 肥料 抗裂角指数(SRI) |
| 收稿时间： | 2015-03-03 |
Effects of N,P, and K Fertilizers on Silique Shatter Resistance and Related Traits of Rapeseed |
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| LIU Ting-Ting,KUAI Jie,SUN Ying-Ying,YANG Yang,WU Lian-Rong,WU Jiang-Sheng,ZHOU Guang-Sheng.Effects of N,P, and K Fertilizers on Silique Shatter Resistance and Related Traits of Rapeseed[J].Acta Agronomica Sinica,2015,41(9):1416-1425. |
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| Authors: | LIU Ting-Ting KUAI Jie SUN Ying-Ying YANG Yang WU Lian-Rong WU Jiang-Sheng ZHOU Guang-Sheng |
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| Institution: | College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China |
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| Abstract: | To study the effects of the farming measures on silique shatter resistance of rapeseed, we designed different fertilizer application combinations of N (0, 90, 180, 270, and 360 kg N hm-2), P (0, 60, 120, 180, and 270 kg P2O5 hm-2) and K (0, 75, 150, 225, and 300 kg K2O hm-2) with two varieties for better machinery harvest. Results showed that with the increase of N, P and K fertilizer application rates, the silique shatter resistance index (SRI) of the two varieties changed as a multi-peak curve. The highest SRI of Huashuang 5 was reached under application of 160 kg N hm-2, 120 kg P2O5 hm-2 and 180 kg K2O hm-2, while that of Huahang901 was under application of 140 kg N hm-2, 160 kg P2O5 hm-2 and 180 kg K2O hm-2. The change degree in SRI differed due to different fertilizers, and K fertilizer had the greatest effect on the SRI of the two varieties among N, P and K fertilizers. The silique wall weight and plant height under different N, P and K fertilizer rates were the key factors affecting rapeseed’s SRI, and could be used as important indexes in silique shatter resistance screening. |
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| Keywords: | Rapeseed Fertilizer Silique shatter resistance index (SRI) |
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