Uman NUH | today: 10/18/2024
| Author(s) |
Korneeva M.O., Ph.D., , Nenka O.V., Postgraduate, , |
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|---|---|---|---|
| Category | The Agronomy | ||
| year | 2013 | issue | Issue number 83, part 1 |
| pages | 162-168 | index UDK | 633.63.631.52 | DOI |
| Abstract | The urgent problem in modern selection is the selection of breeding pairs to form a hybrid combinations with high effect of heterosis based on sugar content. Goal and objectives. Installing the predominant type of gene interactions in the formation of symptoms in sugar beet of topcrossed hybrids and selection of matching-capable pollinators — components of Cytoplasmic Male Sterility (CMS) hybrids. Methodology of research. Hybrid combinations involving six polyspermous pollinators of Uman selection were received according to the type of topcrossing. Mathematical processing of the experimental data was performed with the method of topcrossed testing of hybrids in the field. Results of research. Analysis of variance revealed significant differences in sugar content between the studied hybrids involving polyspermous pollinators. It is possible to differentiate selection materials for genetic breeding value and select the best among them for further selection study. Its lines with polyspermous pollinators 2 (PP2) and PP1 hybrids were obtained with the highest sugar content by 17.57 and 17.5%. Conclusions. Genetically valuable on the basis of sugar lines PP1 and PP2 are recognized, characterized by significantly high effect of CMS. In combination PP1 / T (tester) 4, PP 1 / T 2, BR 3 / T 4 heterosis effect on sugar content is observed. | ||
| Key words | heterosis, combining ability, hybrids, polyspermous pollinator. | ||