[1]王俊强,孙善文,韩业辉,等.玉米自交系N7923选育与应用[J].黑龙江农业科学,2020,(10):129-131.[doi:10.11942/j.issn1002-2767.2020.10.0129]
　[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(10):129-131.[doi:10.11942/j.issn1002-2767.2020.10.0129]
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玉米自交系N7923选育与应用

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2020年10期 页码: 129-131 栏目: 出版日期: 2020-10-10
作者:
王俊强; 孙善文; 韩业辉; 于运凯; 许健; 周超; 孙培元; 刘海燕
黑龙江省农业科学院 齐齐哈尔分院，黑龙江 齐齐哈尔 161000
关键词:
玉米; 自交系; 杂交种; 密度; 经济效益
DOI:
10.11942/j.issn1002-2767.2020.10.0129
文献标志码:
A
摘要:
鉴于自交系铁7922存在的株高和穂位较高、后期脱水慢等缺点，利用玉米自交系9023优良性状对其进行改良，筛选出新种质资源N7923。而后，利用N7923作为亲本选育出玉米新品种嫩单19及嫩单29，结合不同密度试验，确定两个品种的最佳种植密度以促进发挥品种最大增产潜能。结果表明：选育出的玉米新品种嫩单19、嫩单29具有抗倒、脱水快、宜机械化收获等特性。适合有效积温2 650~2 750 ℃区域种植。同时通过密度试验，确定了品种的合理种植密度和增产潜力，玉米新品种嫩单19最佳种植密度75 000株?hm-2，嫩单29最佳种植密度67 500株?hm-2。

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备注/Memo

收稿日期：2020-06-16

基金项目：黑龙江省农业科学院科研项目（2020YYYF03）。
第一作者：王俊强（1981-），男，硕士，副研究员，从事玉米遗传育种研究。E-mail :august-wjq@163。

更新日期/Last Update: 2020-11-09