Iodent玉米种质改良旅大红骨选系配合力及杂种优势利用研究  

Study on the Combination and Hybrid Utilization of Iodent Corn Germplasm Improvement of the Luda Red Bone

作　　者：鲁俊田[1] 任丽丽 赵洪绪 吕春波[1] 曲江波[1] 刘忠杰 王亮[1] 丰光[1] 孙九超[3] LU Jun-tian;REN Li-li;ZHAO Hong-xu;Lü Chun-bo;QU Jiang-bo;LIU Zhong-jie;WANG Liang;FENG Guang;SUN Jiu-chao(Dandong Academy of Agricultural Sciences,Fengcheng 118109;Liaoning Danyu Seed Science and Technology Co.,Ltd.,Fengcheng 118109;Liaoning Dongya Seed Industry CO.,Ltd/State Key Laboratory of Maize Biological Breeding,Shenyang 110000,China)

机构地区：[1]丹东农业科学院,辽宁凤城118109 [2]辽宁丹玉种业科技股份有限公司,辽宁凤城118109 [3]辽宁东亚种业有限公司/玉米生物育种国家重点实验室,沈阳110000

出　　处：《玉米科学》2020年第6期18-24,共7页Journal of Maize Sciences

基　　金：农业重大专项“宜机收玉米新品种选育及配套栽培技术研究”;辽宁东南区适宜全程机械化作业玉米新品种培育(2019JH1/10200001-9)。

摘　　要：采用NCⅡ遗传交配设计,利用Iodent种质改良旅大红骨资源,以优良选系PB-2、PB-3、PB-7、PB-8、PB-10为母本,以与旅系具有强杂种优势的丹988、铁0322、M54、Mo17、铁7922为测验种,组配获得25份杂交组合,分析5份改良系的主要农艺性状的配合力及杂种优势。结果表明,Iodent种质改良旅系群体具有较大的利用价值,能有效降低杂交种株高、穗位高、果穗行数,增加杂交种的产量、抗倒伏能力、子粒品质和果穗长度。丹598和丹99长改良群体一般配合力和特殊配合力均较高,容易组配高产杂交组合,在育种中具有较大的应用价值。Using iodent germplasm to improve the resource of Luda Red Bone,analyzed the Combining ability and heterosis of the main agronomic traits of five improved lines by using NC II genetic mating design.25 cross combinations were obtained by using PB-2,PB-3,PB-7,PB-8,PB-10 as female parent and Dan988,Tie0322,M54,Mo17 and Tie7922 as test varieties with strong superiority to the inbred lines.The results showed that the improved lodging line population of iodent germplasm had great utilization value.It could effectively reduce the plant height,ear height,row number of ears,increase the yield,lodging resistance,grain quality and ear length of hybrid.The parents of the improved population of Dan598 and Dan99 had high general combining ability and high yield specific combining ability,which were easy to use.Combination of high-yielding hybrid combinations has great application value in breeding.

关 键 词：玉米 Iodent种质 旅大红骨 配合力 杂种优势 

分 类 号：S513.035.1[农业科学—作物学]