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The analysis of combining abilities of maize inbred lines of different cycles of recurrent selection for the ear length

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2019
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Authors
Sečanski, Mile
Todorović, Goran
Srdić, Jelena
Čamdžija, Zoran
Tabaković, Marijenka
Jovanović, Snežana
Golijan, Jelena
Popović, Aleksandar
Article (Published version)
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Abstract
The evaluation of combining abilities is an inevitable step in the development of highly productive maize hybrids. The mean values, heterosis, and general (GCA) and specific (SCA) combining abilities of maize inbreds and their hybrids were observed in this study. Inbreds of different cycles of recurrent selection of two maize synthetic populations BSSS and BSCB1 were selected for the study. Hybrids showed higher values of the ear length than inbreds, since inbreeding depression occurs in inbreds as a result of the inbreeding process. The analysis of variance of combining abilities indicates significant positive values of GCA and SCA over both locations and both years of investigation. Since GCA to SCA ratio for inbreds of the BSSS population and parents of an elite hybrid was lower than unit, it can be concluded that a non-additive gene effect might be more important in controlling the expression of this trait. On the other hand, the additive gene effect was the m...ost important for inbreds and hybrids originating from the BSCB1 population. The highest GCA values were recorded in inbreds ZPL1 and ZPL2. Hybrids derived from these two inbreds showed high SCA values in both years of investigation.

Keywords:
maize / combining ability / hybrids / inbreds / ear length
Source:
6. Congress of the Serbian genetic society, 13-17. October 2019., Vrnjačka Banja - Book of abstracts, 2019, 221-221
Publisher:
  • Belgrade : Serbian Genetic Society

ISBN: 978-86-87109-15-5

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Handle
https://hdl.handle.net/21.15107/rcub_rik_950
URI
http://rik.mrizp.rs/handle/123456789/950
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  • Радови истраживача / Researchers' publications
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MRIZP

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