the change of genetic and phenotypic variability of yield components after recurrent selection of maize
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ID: 220189
2009
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Abstract
This paper deals with 31 SSD lines from ZP-Syn-1 C0 and 37 from ZP-Syn-1 C3 maize populations. After line selection and seed multiplication in the first year of the study, the trials were set during two years in Kruševac and Zemun Polje, in RCB design with three replications. Additive and phenotypic variances of yield components were calculated, as well as the estimation of genetic variability narrowing by multivariate cluster analysis. The differences in additive and phenotypic variances between the cycles were significant for ear length only and highly significant for grain row number per ear and for percent of root and stalk lodged plants. It means, a significant narrowing of additive and phenotypic variance occurred only for those three traits, and the other traits did not change their variability by selection in a significant manner. However, according to cluster analysis, distances among genotypes and groups in the zero selection cycle were approximately double than in the third one, but group definition was better in the third selection cycle. It can suggest indirectly to a total variability narrowing after three cycles of recurrent selection.
| Reference Key |
neboja2009genetikathe
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| Authors | ;Deletić Nebojša;Stojković Slaviša;Gudžić Slaviša;Biberdžić Milan |
| Journal | Chemical biology & drug design |
| Year | 2009 |
| DOI |
10.2298/GENSR0902207D
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| URL | |
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