genetic determination of high productivity in experimental hybrid combinations of sugar beet (beta vulgaris l.)

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2016
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Abstract
Purpose. Creation of experimental sugar beet hybrid combinations of high sugar yield values and defining gene­tic determination of their heterotic effect. Methods. Diallel crossing and topcrossing, genetic analysis of quantitative traits. Results. The authors have studied the frequency of occurrence of sugar beet heterotic hybrid combinations for «sugar yield» trait created on the basis of two pollinator lines to be genetically valuable for productivity elements, CMS lines and single-cross sterile hybrids with the use of diallel and topcrossing system of controlled hybridization. The share of parental components’ effect and their interaction in CMS hybrids variability for productivity was determined. Expediency of heterotic forecasting based on high combining ability lines was substabtiated. Promising high-yielding sugar beet combinations were selected that exceeded the group standard by 4.1–16.3%. Conclusions. The theory of genetic balance by M. V. Turbin was confirmed. Such hybrids as [CMS 5OT 4]MGP 1 (116.3%), [CMS 1OT 2]MGP 1 (112.5%) and [CMS 3OT 5]MGP 1 (113.2%) were recognized as the best for their productivity, MGP 1 and MGP 2 lines – as the best for their combining ability.
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Authors ;М. О. Корнєєва;О. В. Ненька
Journal jingangshi yu moliao moju gongcheng/diamond and abrasives engineering
Year 2016
DOI
10.21498/2518-1017.2(31).2016.70037
URL
http://journal.sops.gov.ua/article/view/70037
Keywords
Botany pollinators productivity heterosis yield product quality combining ability

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