| 推迟收获对华北夏玉米籽粒脱水和力学特性的影响及其品种差异 |
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| 引用本文： | 梁效贵,赵雪,吴巩,陈先敏,高震,申思,林珊,周顺利.推迟收获对华北夏玉米籽粒脱水和力学特性的影响及其品种差异[J].中国农业大学学报,2019,24(5):1-9. |
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| 作者姓名： | 梁效贵 赵雪 吴巩 陈先敏 高震 申思 林珊 周顺利 |
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| 作者单位： | 中国农业大学农学院;农业农村部作物高效用水吴桥科学观测实验站 |
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| 基金项目： | 国家粮食丰产增效科技创新重点专项（2016YFD0300301）、国家玉米产业技术体系（CARS-02-13） |
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| 摘 要： | 为明确推迟收获对华北地区夏玉米籽粒脱水及其力学特性的影响,筛选适宜该区域的机械收获籽粒品种,选取28个在该地区大面积推广的品种,综合分析籽粒含水率、穗/粒剪切力和产量变化。结果表明,推迟收获日期,平均籽粒含水率从35.5%下降至27.4%,而籽粒抗破损能力则显著上升(P0.01)。籽粒含水率与静压破损峰值呈极显著负相关,其中影响最大的是顶部剪切力(R=-0.796)。产量与含水率和力学特性之间没有显著相关性。因此,结合产量选择低含水率,高抗破损能力的品种是可行的。10月2日正常收获,‘京农科728’同时满足10 t/hm~2高产且籽粒机械收获最低含水率28%的要求。收获推迟10 d,则‘豫单112’和‘登海701’可以作为该区域玉米籽粒机械收获的备选品种。
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| 关 键 词： | 夏玉米 籽粒机械收获 品种 延迟收获 籽粒含水率 剪切力 产量 |
| 收稿时间： | 2018/5/6 0:00:00 |
Grain dehydration and mechanical characteristics of different summer maize hybrids and their responses to delayed harvest in the North China Plain |
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| LIANG Xiaogui,ZHAO Xue,WU Gong,CHEN Xianmin,GAO Zhen,SHEN Si,LIN Shan and ZHOU Shunli.Grain dehydration and mechanical characteristics of different summer maize hybrids and their responses to delayed harvest in the North China Plain[J].Journal of China Agricultural University,2019,24(5):1-9. |
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| Authors: | LIANG Xiaogui ZHAO Xue WU Gong CHEN Xianmin GAO Zhen SHEN Si LIN Shan and ZHOU Shunli |
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| Institution: | College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China,College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China and College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China;Scientific Observation and Experimental Station of Wuqiao for Crops with High Water Use Efficiency, Ministry of Agriculture and Rural Affairs, Wuqiao 061802, China |
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| Abstract: | |
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| Keywords: | summer maize mechanical grain harvesting hybrids delayed harvest grain moisture content shear force yield |
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