Corn Morning On Behalf Of The Department Of Selfing (s <sub> 1 </ Sub>, S <sub> 2 </ Sub>) Characters With The Ability And Heritability Of The Number Of Analysis

Combining ability and genetic parameters of main characters In early selfing generation ofmalze were estimated,with the Combining ability and genetic parameter ofmaln characters ofselfearly generation was estimated,with pXq(NCl)design,which Shines and their progemy(SZllnes)crossed respectively which Mol7,Nongl7 Nong 52 and 114 hybrids was attained．The result showed that:(l)Difference of general combining ability of SZ lines was greater than that of SI lines(2)Related to correlation between general combining ability ofgraln yield and that ofear weight,stalk thickness,ear dl。neter,ear length,100 kernel weight．(3)Herltability of ear iameter, ear rows was higher,he two characters could be chose directly: AttallllYlent of grain yield Indirectly tNough choosing stalk thlcMess was greater han that of directly choosing grain yield:Attainment of kernels per rowSar weight,grain yield Indirectly,ear diameter was greater than that ofdlrectly choosing kernel per ro风 ear weight,grain yield．(4)Heritablllty combining劝ility ofear lines,kernels per line ear length was greatec the characters could be chosen In early generation,according to combining ability effect．Herltablllty ofcombining ability of ear height was middle,greater genetic progress caused combining ability fast stable,however． selection of combining ability of ear height could perform In early generation,but choosing strength shouldn't be great:Herltablllty of general combiningabilityofstalk height,100 kernel weighwas middle,genetic progress was small,stable speed ear lower,test stage ofcomblningablllty咖 selection shouldthl讪 selection In early generation and In latergeneratlon together． Herltablllty ofgeneral combining ability ofear weigh,kernel weight per e矾 grain yield was low and genetic progress was icw test stage ofcomblning ability and selection should perform In later generation or completely stable stage．(5)The value ofheterosls ofSZ lines was remarkably greater than that ofthelr parent＆l generation(SI)except stalk height,ear height,kernel per row...