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Information × Registration Number 0225U005148, (0121U000053) , R & D reports Title Theoretical discourse of adaptive breeding of high-lycopene tomato varieties in the Forest-Steppe of Ukraine popup.stage_title Оцінка параметрів екологічної мінливості вихідного матеріалу на основі інформаційно-цінних ознак та мінливості факторів погоди, розробка методики оцінки і підбору високо адаптивних форм помідора з підвищеним вмістом лікопену в плодах Head Rudas Ludmila A., Registration Date 26-12-2025 Organization Cherkasy State The Agricultural Experimental Station of National Scientific Center "Institute of Agriculture of National Academy of Agrarian Sciences of Ukraine" popup.description1 popup.description2 The analysis of parameters of environmental variability made it possible to establish tomato samples with high adaptive capacity and stability. The best genotypes, characterized by increased lycopene content in fruits and stability, are samples No. 41 (5.41), No. 40 (4.42), and No. 42 and 51 (3.74). Samples #41 (0.13) and #5 (0.56) showed the highest relative stability of the genotype (Sgi) over the years of research. These samples will provide a guaranteed increased content of lycopene in tomato fruits in any year of the test. Based on the value of the regression coefficient (bi), in this set of samples, sample No. 43 (33.21) responds best to the improvement of environmental conditions. A method of evaluation and selection of highly adaptive tomato forms to changing weather factors with increased lycopene content in fruits has been created, which allows to optimize the number of traits used to evaluate the original parental forms and hybrids at various stages of the breeding process, to reduce the information space by 30-50%. This will reduce the time required for measurements, weighing and conducting biochemical analyses. The components of the methodology are a mandatory complex of genetic and selection methods, namely: the method of assessing the phenotypic variability of economic and valuable traits; the method of correlation analysis, with the help of which measures of the connection between features are established; the method of cluster analysis, with the help of which the studied objects are divided into clusters; the genetic method of evaluating genotypes with high stability and plasticity to environmental conditions; method of analysis of qualitative features. Two tomato varieties were created and submitted for state registration: Rosinka (application number 2025115020) and Promenystyi (application number 2023115021) from September 17, 2025, with lycopene content in fruits of 9.32 and 8.54 mg/100g, respectively. Product Description popup.authors Mariia V. Torbaniuk Liubov S. Kondarevych Yuliia V. Donchuk popup.nrat_date 2025-12-26 Close