耐热高产玉米品种晋单56号的选育  

Breeding of New Maize Hybrid Jindan 56 with High Yield and Heat Tolerance

作　　者：陈朝辉[1] 王安乐[1] 吴翠翠[1] 翟晓菊[1] 

机构地区：[1]山西省农业科学院棉花研究所,山西运城044000

出　　处：《山西农业科学》2011年第5期411-413,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(20080311002-3);山西省科技产业化环境建设项目(2008071002-04);山西省农业科学院育种工程项目(06YZGC154)

摘　　要：晋单56号是山西省农业科学院棉花研究所以耐热高产为主要育种目标,以优势性状互补为原则组配选育亲本,在高温干旱条件下通过扩大选择群体、隔代测定配合力、水旱世代交替等方式选育而成的优良耐热玉米杂交种。山西省区试结果显示,晋单56号2005—2006年平均单产为8 794.5 kg/hm2,比对照品种增产7.6%;2006年生产试验平均单产为8 427.0 kg/hm2,比对照品种郑单958增产7.1%;一般生产田单产为8 500～10 500 kg/hm2。其能够忍耐连续7 d气温达36℃的高温天气,其他综合农艺性状优良。As an excellent maize hybrid, Jindan 56, targeting at heat-resistance and high yield, was selected by means of complement each other＇s advantages as the principle of group with breeding parents, expanding the selection groups, measured the combining ability of skippedgeneration, and flood and drought alternation of generations under the condition of the high temperature and drought by Institute of Cotton, Shanxi Academy of Agricultural Sciences. The results of regional testing in Shanxi showed that mean unit area yield of Jindan 56 was 8 794.5 kg/hm^2 from 2005 to 2006, increasing 7.6% compared with the control breed; in 2006, average unit area yield of production testing was 8 427.0 kg/hm^2, increasing 7.1% compared with the control of Zhengdan 958; its general production average unit area yield was 8 500 - 10 500 kg/hm^2. Jindan 56 could endure the hot weather with temperature of 36 ℃ for seven days and other comprehensive agronomic characters were all fine.

关 键 词：晋单56号 耐高温 配合力测定 优势性状互补 高产 

分 类 号：S513.032[农业科学—作物学]