Uman NUH | today: 10/02/2020

Inheritance of yield formula in F1 hybrids and hybrid swarms F2 Phaseolus vulgaris L.

Author(s) MAZUR O. V., Candidate of Agricultural Sciences, , Vinnytsia National Agrarian University
Poltoretskiy S.P., Candidate of Agricultural Science, professor, Uman National University of Horticulture, Ukraine
Poltoretska N.M., Candidate of Agricultural Sciences, ,
Kononenko L.M., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine
Category The Agronomy
year 2019 issue Issue number 95. Part 1
pages 19-30 index UDK 635.652:631.527
DOI 10.31395/2415-8240-2019-95-1-19-30 (Link)
Abstract The study of quantitative characteristics controlled by polymer genes is rather complicated due to their significant variability, depends on the environment conditions, and the general picture of their inheritance and variability is masked by the modifying action of heterosis in the first generation. New varieties should have a balanced development of all elements of productivity, resistance to abiotic and biotic factors, and not just the maximum value of the individual characteristic. The research objective was to determine the variability level and to identify the patterns of inheritance of valuable commercial-biological traits for the selection of productive and adaptive forms of common bean (Phaseolus vulgaris L.) by hybridologic analysis. Research methodology. The research was conducted during 2014–2016 in the conditions of the research plot of the Department of Plant Production, Selection and Bioenergetic Cultures of Vinnytsia National Agrarian University. The region of the research by its natural conditions refers to the central subzone of the Right Bank Forest-Steppe. The hydrothermal conditions of the 2014 and 2016 surveys were typical of the average yearly indices of the research area and the year 2015 was characterized by a significant deficiency of precipitation and high temperature air conditions. The research material were the varieties of common bean provided by the National Center for Plant Genetic Resources of Ukraine and hybrid combinations obtained as a result of intervarietal crossings. Sowing was carried out by the temperature regime of soil 10–12 °С at the depth of seeding and stable increase of average daily air temperature. The placement of the plots was consistent, the varieties were sown in a six-time repetition. The wide-row sowing with a width of rows of 45 cm was used. The total area of the plots was 1.35 m², and the account one is 1.0 m². Sowing was carried out with the seeding rate of 18 similar seeds per 1 linear meter, the standard was placed in 10 numbers. Accounts, analyzes and observations are performed according to generally accepted methods. Statistical analysis of the results of the research was carried out using dispersion and correlation-regression methods. Conclusions. As a result of conducted research, hybrid combinations ♀UD0300565 × ♂UD0302256; ♀UD0301041 × ♂UD0300025 і ♀UD0300577 × ♂UD0301041 were separated out of hybrid swarms, in hybrid progeny of which there are positive transgressions by characteristics – the number of grains per plant, thousand-kernel weight, grain yield of plants. Inheritance of the elements of yield formula takes place by the type of superdominancy.
Key words common bean, hybrid, hybrid swarm, yield formula, true heterosis, degree of dominancy, degree of transgression, frequency of transgression
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