| 1999—2018年间国审玉米品种遗传产量增益及产量潜力分析 |
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| 引用本文： | 卢实,李穆,高婷婷,王敏,孟令聪,郑淑波,路明,刘文国.1999—2018年间国审玉米品种遗传产量增益及产量潜力分析[J].中国农学通报,2021,37(21):1-7. |
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| 作者姓名： | 卢实 李穆 高婷婷 王敏 孟令聪 郑淑波 路明 刘文国 |
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| 作者单位： | 1.吉林省农业科学院/玉米国家工程实验室（长春）/国家玉米工程技术研究中心（吉林）/农业部东北中部玉米生物学与遗传育种重点实验室,长春 130033;2.吉林吉农高新技术发展股份有限公司,吉林公主岭 136100 |
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| 基金项目： | 国家重点研发计划课题“东北早熟区抗逆耐密适宜机械化玉米新品种培育”(2017YFD0101102);吉林省人才开发资金资助项目“东北春玉米区机收玉米新品种选育与应用”(C92340001) |
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| 摘 要： | 为保障玉米继续增产增收,本文对1999—2018年间中国玉米品种遗传增益和产量提升潜力展开研究。以中国种业大数据平台和中国统计年鉴数据为基础,对二十年间国审玉米品种的遗传产量增益和产量潜力进行分析：20年间中国共通过审定了933个国审玉米品种,平均单产9984.9 kg/hm2,国审品种年遗传产量增益速率185.73 kg/hm2。二十年间,中国玉米平均实际单产为5432.96 kg/hm2,实现了国审玉米品种产量潜力的54.41%。国审玉米品种区域试验单产与实际单产之间回归方程为y=0.3728x+1710.5,当国审玉米品种区域试验单产每增加1 kg/hm2,全国玉米实际单产增加约0.3728 kg/hm2。
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| 关 键 词： | 玉米 国审品种 遗传产量增益 产量潜力 回归分析 |
| 收稿时间： | 2020-08-14 |
National Certified Maize Varieties During 1999-2018: Analysis of Genetic Yield Gain and Yield Potential |
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| Lu Shi,Li Mu,Gao Tingting,Wang Min,Meng Lingcong,Zheng Shubo,Lu Ming,Liu Wenguo.National Certified Maize Varieties During 1999-2018: Analysis of Genetic Yield Gain and Yield Potential[J].Chinese Agricultural Science Bulletin,2021,37(21):1-7. |
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| Authors: | Lu Shi Li Mu Gao Tingting Wang Min Meng Lingcong Zheng Shubo Lu Ming Liu Wenguo |
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| Institution: | 1.Jilin Academy of Agricultural Sciences /National Engineering Laboratory for Maize (Changchun)/National Engineering Research Center for Maize (Jilin)/ Key Laboratory Biology and Genetic Improvement of Maize in Northeast Region, Ministry of Agriculture, Changchun 130033;2.Jilin Jinong Hi-tech Development Co., Ltd., Gongzhuling Jilin 136100 |
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| Abstract: | In order to ensure the continuous increase of maize yield, we studied the genetic yield gain and yield improvement potential of maize varieties in China from 1999 to 2018. Based on the large data platform of China Seed Industry and data of China National Bureau of Statistics, we analyzed the genetic yield gain and yield potential of national certified varieties over the last two decades. The results showed that totally 933 maize varieties were registered by the large data platform over the last two decades, the average unit yield was 9984.9 kg/hm2, and the annual genetic yield gain rate was 185.73 kg/hm2. The actual maize average unit yield in China was 5432.96 kg/hm2, which realized 54.41% of the yield potential of the national certified varieties. The regression equation between national certified varieties’ regional test unit yield and actually unit yield was y=0.3728x+1710.5, the yield of national certified varieties increased by 1 kg/hm2 in regional trail, the actual cultivation yield could increase about 0.3728 kg/hm2. |
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| Keywords: | maize national certified varieties genetic yield gain yield potential regression analysis |
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