| 气象因素对玉米果穗建成影响 |
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| 引用本文： | 葛均筑,徐莹,袁国印,李淑娅,曹凑贵,展茗,赵明. 气象因素对玉米果穗建成影响[J]. 玉米科学, 2017, 25(2): 86-93 |
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| 作者姓名： | 葛均筑 徐莹 袁国印 李淑娅 曹凑贵 展茗 赵明 |
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| 作者单位： | 天津农学院农学与资源环境学院, 天津 300384;华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070;中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081,华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070,华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070;中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081,华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070;中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081,华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070,华中农业大学植物科技学院/农业部长江中游作物生理生态与耕作重点实验室, 武汉 430070,中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081 |
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| 基金项目： | 国家科技支撑计划（2012BAD04B12）、农业部作物生理生态与耕作重点实验室开放课题（201306）、国家公益性行业（农业）科研专项经费项目（201203096） |
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| 摘 要： | 通过大田不同播期试验,研究播期气象因素差异对不同品种玉米果穗建成的影响。结果表明,双穗率对穗数具有显著的间接负效应,空秆率对穗数具有显著的直接负效应,果穗分蘖率是影响空秆率的重要因素。播期对果穗建成因素的影响均达显著或极显著水平,品种间穗数无差异,但双穗率和空秆率差异显著。出苗至拔节期日温差越高和适当降雨,双穗率和空秆率越低,穗数越多;出苗至拔节期和拔节至大喇叭口期内高温危害,以及拔节至吐丝期夜温升高、日温差变小和渍涝胁迫,均显著提高双穗率和空秆率;吐丝后14 d内高温天数导致花丝受精率降低或者受精花丝子粒败育,降低穗数。通过调整播期调控玉米果穗建成期气象因素是构建高产多穗群体的技术手段之一。
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| 关 键 词： | 玉米 穗数 双穗率 空秆率 气象因素 |
| 收稿时间： | 2016-09-19 |
Effects of Dry Matter Accumulation and Meteorological Factors on Maize Ear Establishments |
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| GE Jun-zhu,XU Ying,YUAN Guo-yin,LI Shu-y,CAO Cou-gui,ZHAN Ming and ZHAO Ming. Effects of Dry Matter Accumulation and Meteorological Factors on Maize Ear Establishments[J]. Journal of Maize Sciences, 2017, 25(2): 86-93 |
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| Authors: | GE Jun-zhu XU Ying YUAN Guo-yin LI Shu-y CAO Cou-gui ZHAN Ming ZHAO Ming |
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| Affiliation: | College of Agronomy and Resources and Environment, Tianjin Agricultural University, Tianjin 300384;College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology of Ministry of Agriculture, Beijing 100081, China,College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070,College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology of Ministry of Agriculture, Beijing 100081, China,College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology of Ministry of Agriculture, Beijing 100081, China,College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070,College of Plant Science and Technology, Huazhong Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation(The Middle Reaches of the Yangtze River) of Ministry of Agriculture, Wuhan 430070 and Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology of Ministry of Agriculture, Beijing 100081, China |
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| Abstract: | |
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| Keywords: | Maize Ear number Double ear rate Bare plant rate Meteorological factor |
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