| 冬小麦灌浆后期光响应曲线特征参数及其对施氮量响应 |
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| 引用本文： | 方保停,邵运辉,岳俊芹,雷振生,吴政卿,秦 峰. 冬小麦灌浆后期光响应曲线特征参数及其对施氮量响应[J]. 西北农业学报, 2011, 20(3): 52-56 |
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| 作者姓名： | 方保停 邵运辉 岳俊芹 雷振生 吴政卿 秦 峰 |
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| 作者单位： | 河南省农业科学院小麦研究中心,河南省小麦生物学重点实验室,郑州,450002 |
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| 基金项目： | 河南省重大科技专项(081100110300) |
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| 摘 要： | 为明确郑麦366高产生理基础,大田条件下研究了施氮量对郑麦366灌浆中后期旗叶光合作用光响应曲线和产量的影响。结果表明,在施氮量为0~240 kg.hm-2增施氮肥能够提高旗叶最大净光合速率和光饱和点、调节光响应曲线特征参数,改善不同光合有效辐射强度下旗叶光合速率等光合性能,提高籽粒产量;施氮量大于240 kg.hm-2,不同程度地降低旗叶光合性能和籽粒产量。本试验条件下,最适宜施氮量约240kg.hm-2。
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| 关 键 词： | 郑麦366 施氮量 光合特性 光响应曲线 |
Characteristic Parameters of Light Response Curves at Late Grain filling Stage and Its Responses to Nitrogen Application Rate of Winter Wheat |
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| FANG Baoting,SHAO Yunhui,YUE Junqin,LEI Zhensheng,WU Zhengqing and QIN Feng. Characteristic Parameters of Light Response Curves at Late Grain filling Stage and Its Responses to Nitrogen Application Rate of Winter Wheat[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2011, 20(3): 52-56 |
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| Authors: | FANG Baoting SHAO Yunhui YUE Junqin LEI Zhensheng WU Zhengqing QIN Feng |
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| Affiliation: | FANG Baoting,SHAO Yunhui,YUE Junqin,LEI Zhensheng,WU Zhengqing and QIN Feng (Research Centre for Wheat,Henan Academy of Agricultural Science,Henan Key Laboratory of Wheat Biology,Zhengzhou 450002,China) |
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| Abstract: | In order to define physiology base of yield of Zhengmai 366(a winter wheat cultivar with high quality) the effects of nitrogen application rate on light-response curve of flag leaves at late grain-filling stage and yield of Zhengmai 366 was investigated in field experiment.The result indicated that the maximum net photosynthetic(Pn) of the flag leaves and light saturation point(LSP) was increased and parameter of photosynthetic characteristics in light-response curve was adjusted and net photosynthetic of t... |
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| Keywords: | Zhengmai366 Nitrogen application rate Photosynthetic characteristics Light-response curves |
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