2012•Heilongjiang nongye kexueRequires access
Yield Components Combining Ability and Heterosisanalysis of 18 Maize Inbred Lines
Yuan Hai-yang
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Abstract
18 maize inbred lines and 5 groups attribute to different heterosis groups were chosen as male parents.The experiments using NCII design to make 90 hybrid combinations,and analyze GCA,SCA and heterosis of hundred grain weight,spike length,ear diameter,axes diameter,grain length,grain width,grain thickness and yield.The results were as followed:inbred lines of R153、R165、R154、R113 and R167 had excellent characters,those inbred line with strong heterosis could be used to make hybrid combinations.R120 and R122 had worst performance,while some traits of the other inbred lines were also prominent,they could be purposefully chosen to use in breeding.