| 引进美国玉米自交系在我国的耐旱适应性分析 |
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| 引用本文： | 梁晓玲,王楠,王业建,李铭东,杨杰,阿布来提,雷志刚,韩登旭,郗浩江,陈绍江,刘文欣,李明顺,郝转芳.引进美国玉米自交系在我国的耐旱适应性分析[J].玉米科学,2018,26(5):1-6,13. |
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| 作者姓名： | 梁晓玲 王楠 王业建 李铭东 杨杰 阿布来提 雷志刚 韩登旭 郗浩江 陈绍江 刘文欣 李明顺 郝转芳 |
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| 作者单位： | 中国农业大学;新疆农业科学院粮食作物研究所;中国农业科学院作物科学所;新疆畜牧科学院草业研究所 |
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| 基金项目： | 国家玉米产业技术体系建设专项（CARS-02-68）、国家重点研发计划（2016YFD0101204-4）、国家自然科学基金（31560425；31661143010）、自治区公益性科研院所基本科研业务经费（KY2015066） |
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| 摘 要： | 对210份引进美国解密玉米自交系在正常灌溉和干旱胁迫两种水分处理下进行耐旱适应性分析。通过对美国自交系和国内主要自交系耐旱相关农艺性状调查发现,在两种水分处理下,美国自交系产量略高于国内自交系,其中,行粒数是造成产量差异的主要因素。从育种角度来看,虽然美国自交系株高高于国内自交系,但其穗位高明显低于国内自交系,有利于培育品种的抗倒性。利用耐旱选择系数对自交系耐旱性进行评价,从美国自交系选出LH149、PHBA6、S8326等26份极强耐旱性自交系,耐旱性超过国内自交系豫12和齐319等。
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| 关 键 词： | 玉米 美国自交系 耐旱性 |
| 收稿时间： | 2017/9/19 0:00:00 |
Drought Tolerance Evaluation of American Maize Inbred Lines in China |
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| LIANG Xiao-ling,WANG Nan,WANG Ye-jian,LI Ming-dong,YANG Jie,A Bu-lai-ti,LEI Zhi-gang,HAN Deng-xu,XI Hao-jiang,CHEN Shao-jiang,LIU Wen-xin,LI Ming-shun and HAO Zhuan-fang.Drought Tolerance Evaluation of American Maize Inbred Lines in China[J].Journal of Maize Sciences,2018,26(5):1-6,13. |
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| Authors: | LIANG Xiao-ling WANG Nan WANG Ye-jian LI Ming-dong YANG Jie A Bu-lai-ti LEI Zhi-gang HAN Deng-xu XI Hao-jiang CHEN Shao-jiang LIU Wen-xin LI Ming-shun and HAO Zhuan-fang |
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| Institution: | China Agricultural University, Beijing 100193;Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Grassland Research Institute, Xinjiang Academy of Animal Sciences, Urumqi 830000, China,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091,China Agricultural University, Beijing 100193,China Agricultural University, Beijing 100193,Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081 and Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081 |
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| Abstract: | With 210 decrypted maize inbred lines introduced from USA, their adaptability under normal irrigation and drought stress was analyzed in this study. The results showed that the yield of US inbred lines was slightly higher than that of domestic inbred lines under the two kinds of water treatments, among which the number of grains was the main factor to variance; From the breeding point of view, although the plant height of US inbred lines was higher than the domestic inbred lines, the ear height was significantly lower than the domestic inbred lines, which was beneficial to cultivating varieties of lodging resistance. Finally, with the selection index of drought tolerance, inbred lines of drought tolerance were selected, such as LH149, PHBA6 and S8326 etc., and their drought tolerance was higher than that of the domestic inbred lines. |
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| Keywords: | Maize American inbred line Drought tolerances |
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