Comparative evaluation of pink F1tomato hybrids with intense flesh color in terms of yield, biochemical composition, and organoleptic characteristics in film greenhouses in southern Russia

The article presents a comparative analysis of parental lines and promising F1 tomato hybrids with pink tomatoes. The evaluation was based on a set of economically significant traits, including biochemical (dry matter content, total acidity) and organoleptic indicators (flesh brightness, tasting score). The study was conducted at the Crimean Breeding Center of the Gavrish Research Institute in 2023-2024. Analysis of parental lines revealed significant variability in terms of dry matter content (3.8-6.2%) and total acidity (0.43-0.99%). Paternal lines were more likely to exhibit more intense flesh color. Parental forms with the most balanced taste (tasting score > 4 points) were identified. The variety testing of F1 hybrids allowed us to identify combinations with high early maturity (92-96 days), yield (up to 21.0 kg/m²), and marketability (up to 99%). The hybrids were characterized by shortened internodes. The maximum dry matter content was recorded in the k-3857/23 hybrid (6.6%). The heterosis analysis showed a positive effect on dry matter content (+23.3%) and tasting score (+4.9%), and a negative effect on total acidity (-39.4%). The inheritance of flesh brightness was polymorphic. The most promising parent lines and hybrid combinations were selected for further breeding. Significant correlations between the studied traits were identified. The results obtained contribute to the development of new competitive tomato hybrids with improved characteristics. The F1 k-3857/23 hybrid showed the greatest potential and was recommended for submission to the State Commission.

розовоплодные томаты, гибриды F1, урожайность, биохимический состав, гетерозис, пленочные теплицы