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《Maize Sciences》 1994-03
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Genetic Analysis on Tassel of Corn

Liu Dawen (Guizhou Agricultural College,Guiyang 550025)  
Genetic analysis of corn tassel was made in a 8×8 diallel without reciprocals. Both regression of Wr on Vr and analysis of variance of (Wr+Vr) and (Wr-Vr) showed that additive,dominant and epistatic effects were responsible for the inheritance of tassel branch number,tassel length and tassel weight. But after removal of discrepant inbred lines,a simple additive-dominant model was adequate for these tassel characters. The results obtained from 6×6 subdiallel indicated that high tassel branch number,long tassel and heavy tassel were dominant. We found that tassel branch number was incomplete dominant,tassel length and tassel weight were overdominant. Eighteen,twenty and twenty-two genes were involved in the inheritance of tassel branch number,tassel length and tassel weight respectively. Inbred line Ki 21 contained the mostly recessive genes for tassel branch number and tassel weight,dominant genes for tassel length. Kei 9103 carried the mostly dominant genes for tassel branch number and recessive genes for tassel length. KS 23-1-4 possessed the mostly dominant genes for tassel weight.
【Fund】: 丁家骏基金资助
【CateGory Index】: S513
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