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Analyses of combining ability of oil content in cultivars of B.juncea in Guizhou

CHEN Jin,TAO Gui xiang (Oil Crops Institute,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China)  
A 6×6 complete diallel cross was made between Guizhou local mustard cultivars(B.juncea).Analysis for general and special combining ability(GCA and SCA)of oil content was conducted.The results showed as follows:GCA of oil content had significant difference between cultivars and was controlled by both additive and non additive genetic effects,but mainly by additive effect.Different parents had different GCA and SCA effects.Niuerdu and Zake cv.had higher GCA effect,their F 1 hybrids also had maximum SCA.The two varieties are desirable parents for high oil content breeding.
【CateGory Index】: S565.4
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