UDC 635.64:631.526.32
https://doi.org/10.25630/PAV.2024.47.86.003
Sushkova A.A., Kolomin N.I., Kibanova N.A.
The study was conducted in open ground conditions at the Crimean Breeding Center of Scientific-Industrial Association (SIA) “Gavrish”, Crimean district of Krasnodar region, from 2022-2024. In 2023-2024, nine hybrids were studied, selected in 2022 from 254 combinations (obtained by controlled crossing of breeding lines) in comparison with the F1-hybrids available in our collection for processing: Botsman, CDX 255. All hybrids were distinguished by their compact size, suitable for mechanized harvesting; in addition, all hybrids formed fruits with brightly colored skins. According to the strength of the fetus, the indicators ranged from 69.5 Shore (F1 Botsman, control) up to 87.6 Shore (kog-187/21). Also, the average fruit weight of all combinations involved in the variety testing was greater than that of F1 Botsman (35g), the highest average fruit weight was recorded in the second standard F1 CDX 255 (70 g). According to the Brix index, all tested samples are very high. The Hunter a/b index (reflecting the degree of saturation of the color of the fruit pulp, which has a strong correlation with the lycopene content) in the F1 Botsman (1,7) was lower than required by the industry, whereas compliance was found in hybrids: kog-187/21, kog-66/21, kog-114/21, cog-95/21, cog-94/21, kog-118/21. According to the average yield over two years of measurements, the compliance of kog-187/21 and kog-66/21 hybrids with industry requirements (103.7 t/ha, 102.3 t/ha, respectively) was revealed, these indicators are commensurate with the yield of the F1 Botsman standard – 100.1 t/ha. As a result, an open-ground tomato hybrid for processing cog-187/21 was isolated and recommended for further production variety testing. A high correlation was found (r = 0.94) of the average visual assessment of tomato fruit pulp with the Hunter a/b index (a quantitative indicator of the degree of color saturation), which confirms the equality of quantitative and qualitative assessment of the degree of saturation of the pulp of tomato fruits for determination.
Key words: tomato, open ground, processing, yield, content of dry soluble substances, fruit strength, color saturation of the pulp.
Sushkova A.A., research fellow, Gavrish Scientific-Industrial Association, applicant of FSBSI Federal Scientific Vegetable Center
Kolomin N.I. (author for correspondence), research fellow, Gavrish Scientific-Industrial Association, applicant of FSBSI Federal Scientific Vegetable Center. E-mail: kolomins@gmail.com
Kibanova N.A., deputy head of solanum breeding laboratory, Gavrish Scientific-Industrial Association
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For citing: Sushkova A.A., Kolomin N.I., Kibanova N.A. Variety testing of open-ground tomatoes for processing in the Krasnodar region. Potato and vegetables. No8. Pp. 24-28. https://doi.org/10.25630/PAV.2024.47.86.003 (In Russ.).
