Combining Ability Analysis of Yield Characters of Maize Inbred Lines Resistant to Rough Dwarf Virus
Wei Xiaoyi
Wei Feng
Ding Wei
Wei Fang
Wang Xiangyang
Zhang Xueshun
Abstract：The combining ability of ear characters and yield of 7 new maize inbred lines resistant to rough dwarf virus were analyzed with 4 domestic elite inbred lines,Zheng 58,Chang 7 -2,PH6WC and PH4CV,as materials by the NCII mating design.The results showed that from the general combining ability (GCA)of ear characters and yield of the 7 new materials,the hybrids of Y7 and Y4 had high yield potential,and the hybrids of Y6 had stable yield potential.From the special combining ability (SCA)of yield,Y4 ×PH4CV,Y7 × PH6WC,Y6 ×PH4CV and Y7 ×Zheng 58 had the larger yield SCA effect values.The yield of the combina-tions was 11.3,11.4,11.2,11.1 t/hm2 respectively,which were all significantly higher than that of the con-trols,Zhengdan 958 and Xianyu 335.In general,Y4 ×PH4CV,Y7 ×PH6WC,Y6 ×PH4CV and Y7 ×Zheng 58 had better performance.
Keywords：Maize (Zea mays L.)YieldGeneral combining abilitySpecial combining ability
Publication Date：2016-09-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 20-23 )