ALEXHO高油玉米杂交当代单株产量与籽粒油分含量的遗传分析  

Genetic Analysis of Per-plant Yield and Kernal Oil Content in F_1 Seeds of ALEXHO High Oil Corns

作　　者：刘艳霞[1] 李玉玲[1] 王延召[1] 余永亮[1] 李学慧[1] 

机构地区：[1]河南农业大学农学院,河南郑州450002

出　　处：《华北农学报》2007年第6期44-49,共6页Acta Agriculturae Boreali-Sinica

基　　金：河南省攻关项目(0424020025);河南省高校新世纪优秀人才支持计划项目

摘　　要：利用黄淮海地区分属于不同杂种优势群的21个普通玉米自交系为母本,以引进中国农业大学选育的8个ALEXHO高油玉米自交系为父本,采用NCⅡ遗传设计,测定并分析了高油玉米杂交当代单株产量和籽粒油分含量的配合力。结果表明:GY246A的单株产量和籽粒油分含量的GCA均为极显著最大正值,具有较高的直接组配价值,其次为GY246B和GY220。8085泰、246、P138、8622和87-1单株产量和籽粒油分含量的GCA均为极显著正值或显著正值,应进一步利用这些自交系与ALEXHO高油玉米自交系较强的杂种优势。246×GY246B、Q1261×GY246A和478×GY956在单株产量和油分含量的SCA均较高,其中246×GY246B单株产量居首位,较对照增产25.96%,油分含量为6.6%,具有较高的生产利用价值。Based on NC Ⅱ design, 168 crosses were made from 21 normal corn inbreds from different heterotic groups in Huanghuaihai Region as female parents and 8 ALEXHO high oil corn inbreds from China Agricultural University as male parents, which were grown in a randomized complete-block design experiment with three replications, and the GCA and SCA of per-plant yield and kernel oil content of F1 Embryo were analyzed. The results were as follows ： the GCA of per-plant yield and kernel oil content for GY246A were significant at 0.01 level, showing the direct utilization value in breeding,followed by GY246B and GY220. The GCA of per-plant yield and kernel oil content for 8085tai, 246, P138, 8622 and 87-1 were significant at 0.01 level or 0.05 level, so their heterosis could also be used in breeding. The SCA of per-plant yield and kernel oil content in crosses 246 × GY246B,Q1261 ×GY246A and 478 × GY956 were higher than in other crosses. The per-plant yield of 246× GY246B was the highest among all the crosses, 25.96 % higher than CK hybrid, and its oil content was 6.6 %, presenting a great utilization value in corn production.

关 键 词：ALEXHO高油玉米自交系 普通玉米自交系 单株产量 油分含量 配合力 

分 类 号：S513.03[农业科学—作物学]