Breeding and Genetic Combining Ability of Dajingjiu 26 Single Cross Hybrid Modified by Silage Maize 9889 Sibling Species
REN Wei
HOU Lexin
GUO Zhensheng
PENG Lei
WANG Fangming
ZHANG Genwang
Abstract：For the sake of breeding excellent new species of silage maize,among the 26 sib-lines of 9889, six excellent lines were selected to cross with 9889 inbred line into sibling species,which were used to improve single cross hybrids.D340F(improved Dajingjiu 26 hybrid) was finally selected through compared experiments and tests in 14 ecological locations.The average dry matter yield of the modified hybrid was 24 124. 45 kg/ha,increased by 4. 2% compared to the original Dajingjiu 26,and yield stability parameters were better,agronomic traits were improved,disease resistance was enhanced.The GCA relative effect values of most characters of D340 sibling species were larger positive effect values, and the average yield of seed production was 7 029.2 kg/ha,increased by 45.9% compared to Dajingjiu 26,which proved that D340 was an excellent sibling species for breeding single cross hybrids of silage maize.
Keywords：Silage maizeSib-line9889 sibling speciesModified single cross hybridDajingjiu 26Combining ability
Publication Date：2018-03-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 19-22 )