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Study On Genetic Variation Of Store Protein In Maize

Posted on:2007-05-17Degree:MasterType:Thesis
Country:ChinaCandidate:L H WanFull Text:PDF
GTID:2133360185979710Subject:Agricultural extension
Abstract/Summary:PDF Full Text Request
Using HB4 as parents date in the experiment, we studied albumin ,globulin, zein, the content ratio of globulin and zein. The main result was as followed:(1) The estimates of genetic constitutions showed that additive effect was relatively big among volume weight, the weight ratio of albumin, based mainly on general compatible ability when selecting them dominance effect was relatively big among globulin, based mainly on special compatible ability when selecting them. Additive effect and dominance effect Played almost the same important role among the other indices, based on general compatible ability and special compatible ability at one time when selecting them.(2) The analysis of suggested that both additive and dominance effect Played a magisterial role in all of indices, and epitasis effect was not significant at all of these indices, which could draw a conclusion that the genetic model of the additive -dominance.The analysis of genetic variance showed that the measure of dispersion and heritable of these indices were relatively big and implied that there were extensively enough measure of dispersion and rather high heritable about these indices in this Population and it would result in relatively high genetic advancement. At the same time it also accounted that improvement of these quality indices in this Population was feasible.(3) The results of correlation analysis showed that there were Pervasive genetic correlated to different degrees among these indices. Furthermore, there were significant or extremely significant correlations to moderate or high degrees among some indices. So indirect selection might be exercised by terms of their genetic correlation and improvement effect would also be enhanced apparently habitability...
Keywords/Search Tags:Maize, Protein, Quality, Heredity
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