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Information × Registration Number 0219U102021, 0119U100626 , R & D reports Title Search for new approaches to building models of hybrids and varieties of tomato based on modern information technologies popup.stage_title Head Krutko Roman V., Registration Date 13-12-2019 Organization Institute of vegetables and melon growing National academy of agricultural sciences of Ukraine popup.description2  The object of study is the selection of tomatoes, the features of the display of selection-valuable traits in varieties, lines and hybrid populations. The purpose of the work is to improve the methods of heterosis and varietal selection of tomatoes by integrated assessment of collection and selection material, to establish regularities in the variability and inheritance of features and to develop on this basis methodical approaches to the construction of a mathematical model of the variety with increased level of adaptability through the use of information technology and data predicting results. Research methods - field, organoleptic, measuring and weighting, calculation, mathematical and statistical. The variability of tomato genotypes by quantitative traits over the last 5 years is analyzed. Stable samples by fetal weight, pericarp thickness, soluble solids content, vitamin C content, and sugar-acid index were found. The peculiarities of the genetic organization of the duration of the growing season and productivity in the collecting samples of tomato were determined, and differences in the epigenetic programs of growth and development of individual genotypes were identified. According to the results of the researches, a database was created, which contains information on the study of tomato samples by the duration of the growing season, yield, quality of production, resistance to disease. When studying the patterns of quantitative traits in F1, the donor properties of the original forms were evaluated and those that yielded a yield increase relative to the maternal and paternal forms were identified. The mathematical model of the dependence of the manifestation of the sign of "total yield" in F1 hybrids on the level of this sign in the maternal parental form was calculated. Using multiple regression analysis, a mathematical model was constructed in the form of a multiple regression equation for the yield of tomato samples from the duration of the sprouting perio Product Description popup.authors Krutko Roman V. popup.nrat_date 2020-04-02 Close