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The Scientific World Journal
Volume 2014, Article ID 580623, 5 pages
Research Article

Impact of Genes and Proportional Contribution of Parental Genotypes to Inheritance of Root Yield and Sugar Content in Diploid Hybrids of Sugar Beet

1College of Agriculture and Food Technology Prokuplje, Cirila and Metodija 1, 18400 Prokuplje, Serbia
2Faculty of Agriculture, University of Pristina, Kosovska Mitrovica-Zubin Potok-Lesak-Kopaonicka bb, 38217 Lesak, Kosovo and Metohija, Serbia

Received 21 August 2013; Accepted 20 November 2013; Published 28 January 2014

Academic Editors: K. Flisikowski and L. Lanfrancone

Copyright © 2014 Ivica Stancic et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper analyzes the impact of genes and proportional contribution of parental genotypes on the inheritance of root yield and sugar content in diploid hybrids of sugar beet. The survey included two diploid male-sterile monogerm lines and three single (SC) male-sterile hybrids as maternal components, while three multigerm diploids were used as pollinators. The partitioning of genotypic variance into additive and dominant components was performed by half sibling (HS) and full sibling (FS) covariance. The proportional contribution of individual components of crossbreeding (lines, testers, and interactions) was exhibited in the expression of certain characteristics of F1 generation. Genotypic variance components showed a significant effect of nonadditive gene action (dominance) in the inheritance of root yield and sugar content, while the additive effect of genes was less significant. Maternal components had a greater proportional contribution to root yield, while lines, pollinators, and their interactions had an equal contribution to sugar content.