不同基因型玉米杂交种选育二环系的效果研究  

Effect of Second Cycle Line Breeding From Different Genotype of Corn

作　　者：崔婧婧 于玲玲 郭强[1] 张全国[3,4] CUI Jingjing;YU Lingling;GUO Qiang;ZHANG Quanguo;无(Tangshan Academy of Agricultural Science,Tangshan,Hebei 063000,China;Tangshan Crop Seed Station,Tangshan,Hebei 063000,China;Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang,Hebei 050035,China;Hebei Key Laboratory of Crop Genetics and Breeding,Shijiazhuang,Hebei 050035,China)

机构地区：[1]唐山市农业科学研究院,河北唐山063001 [2]唐山市农作物种子站,河北唐山063001 [3]河北省农林科学院粮油作物研究所,石家庄050035 [4]河北省作物遗传育种重点实验室,石家庄050035

出　　处：《陕西农业科学》2025年第3期13-17,共5页Shaanxi Journal of Agricultural Sciences

基　　金：河北省现代农业产业技术体系建设专项资金(HBCT2024020411);省-市农科院合作项目“适合春播区玉米种质创新及新品种选育”(2023KJCXZX-LYS-22)。

摘　　要：以先玉335、东单1331和迪卡516为基础,选育二环系。2021年冬,对所选育的二环系,按照Griffing方法(无亲本,仅一组F1),配制了108个组合。2022-2023年,通过对108个组合在产量、抗倒性、抗病性,以及一年多点产量稳定性、丰产性等方面进行分析,多角度对品种进行综合评价。结果表明:KPK124(迪卡516二环系)×KPX49(先玉335二环系)组合,在两年多点试验中,产量最高,为886.5 kg/667 m^(2)(2022)和780.78 kg/667 m^(2)(2023),抗倒性最好,高抗大斑病、茎腐病和穗腐病,抗锈病。该组配模式,在一定程度上反映了利用主要性状互补的玉米杂交种选育二环系,对选系后代进行杂交组配,能够选育出较为优良的玉米杂交种。Second-cycle lines were selected based on three maize hybrids:'Xianyu 335','Dongdan 1331',and'Dika 516'.In the winter of 2021,108 hybrid combinations were prepared using the Griffing method(excluding parents,with only one set of F1 hybrids).From 2022 to 2023,these combinations were comprehensively evaluated for yield,lodging resistance,disease resistance,and yield stability across multiple locations and years.The results showed that the combination KPK124(from the'Dika 516'second-cycle line)×KPX49(from the'Xianyu 335'second-cycle line)exhibited the highest yield,reaching 886.5 kg/667m^(2) in 2022 and 780.78 kg/667m^(2) in 2023.This combination also demonstrated the best lodging resistance,high resistance to northern leaf blight,stalk rot,and ear rot,as well as moderate resistance to rust.These findings indicate that breeding second-cycle lines from maize hybrids with complementary key traits and selecting superior hybrid combinations can effectively develop high-performing maize hybrids.

关 键 词：不同种类玉米 二环系 产量 抗性 

分 类 号：S513[农业科学—作物学]