玉米DH系产量及农艺性状配合力分析

Combining Ability Analysis on Agronomic Araits of Double Haploid Breedings

以农大高诱1号诱导系和辽3162(大斑病感病材料)×A619HtN(大斑病抗病材料)组配的材料为亲本获得的5个DH(doubled haploid)系与辽3162、A619HtN和中106为父本系组配的15个杂交组合为试材,采用数量遗传学方法进行DH系产量和田间农艺性状的配合力分析。结果表明:诱导DH系的基础材料决定其诱导后代的类型,利用DH育种技术可以快速改良自交系的一般配合力,组配优良的杂交组合。

Maize DH（doubled haploid） breedings were hybridized in this experiment,we use quantitative genetics method were used to study the rule of genetic variation for agronomic traits.The result indicated that the basic materials of DH breedings determined the type of offspring.The plant height,ear height,tassel branch length,tassel branch number,100 grain and yield of DH breedings followed the rule of additive gene effect.Using DH breeding can rapidly improve the GCA of inbreds and cross elite hybrids.MoreBack AbstractFilter（＇EnChDivSummary＇,＇ChDivSummaryMore2＇,＇ChDivSummaryReset2＇）; 【Keywords in Chinese】 玉米; DH系; 一般配合力（GCA）; 特殊配合力（SCA）; 【Key words】 maize; DH breeding; GCA; SCA;