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http://dx.doi.org/10.7732/kjpr.2011.24.2.195

Studies on Genetic Variation of Soluble Solids, Acidity and Carotenoid Contents in Tomato Fruits from Germplasm  

Son, Cho-Yee (Department of Horticulture, Hankyong National University)
Jung, Yu-Jin (Institute of Genetic Engineering, Hankyong National University)
Lee, In-Hye (Department of Horticulture, Hankyong National University)
Kyoung, Jung-Ho (Department of Horticulture, Hankyong National University)
Lee, Jang-Su (DongWon Nongsan Seed Co.)
Kang, Kwon-Kyoo (Department of Horticulture, Hankyong National University)
Publication Information
Korean Journal of Plant Resources / v.24, no.2, 2011 , pp. 195-199 More about this Journal
Abstract
Tomato (Lycopersicon esculentum M.) is one of the most important crops to the fresh vegetable market and the food processing industry. To evaluate genetic variation in tomato fruits, major characteristics such as soluble solids, acidity and carotenoid contents were analyzed for 771 genetic resource lines. Lines in red color was about 85% which is the largest one followed by peach color, yellow, green, orange, and black. The sweetness of juice ranged from 2.2 to 11.5% (in brix), the average being 5.6%. The acidity ranged from 0.124% to 1.665%, and the average was 0.881%. The lycopine contents was up to 80.4 ${\mu}g/g$, and 43.4 ${\mu}g/g$ in average. ${\beta}$-carotine ranged 1.8 to 48.8 ${\mu}g/g$ and it average was 10.8 ${\mu}g/g$. Statistical analysis indicates that there is coefficient of correlation between acidity and sweetness, acidity and pH, pH and lycopine, lycopine and ${\beta}$-carotine. It is expected that the result of this study can be used for breeding more competitive species with respect to contents in sugar or functional chemicals from the selected characteristic species.
Keywords
Genetic resource; Sugar contents; Carotenoid pigments; Tomato; Genetic variation;
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