The Correlation and Comparison of Quality Characters of Several Tomato Cultivars Grown by Hydroponics
2010
Islam, Mohammad Zahirul, Kangwon National University, Chuncheon, Republic of Korea | Yoo, T.J., Kangwon National University, Chuncheon, Republic of Korea | Jung, H.J., Kangwon National University, Chuncheon, Republic of Korea | Choi, I.L., Gangwon Provincial ARES, Chuncheon, Republic of Korea | Jeon, S.J., Gangwon Provincial ARES, Chuncheon, Republic of Korea | Won, J.H., Gangwon Provincial ARES, Chuncheon, Republic of Korea | Lee, Y.S., Yonsei University, Wonju, Republic of Korea | Kim, Y.S., Sangmyung University, Cheonan, Republic of Korea | Kim, I.S., Kangwon National University, Chuncheon, Republic of Korea | Kang, H.M., Kangwon National University, Chuncheon, Republic of Korea
This study was conducted to compare the quality characters of 15 different tomato cultivars ('Dotearang Dia', 'Super Dotearang', 'Super sunroad', 'Hoyong', 'Mirokku', 'Baccuhs', 'Mascara', 'Poseidon', 'Radido', 'Madison', 'Rapsodie', 'Solomon', 'Amaral', 'Picasso', 'Tymaxx') and find out the correlation among the quality characters in order to get basic informations for exporting tomato. The a*/b* value of fruit surface showed from 2.8 to 4.8, but there was no significant difference in fruit surface color value, such as a*, b* and a*/b* among the cultivars. The respiration and ethylene production rate also were not shown any significantly difference among cultivars. The firmness of fruit was higher in 'Picasso', 'Tymaxx' and 'Madison' cultivars. The contents of soluble solids was higher in 'Hoyong' and 'Dotearang Dia' cultivars. The vitamin C content was higher in 'Super Sunroad' and 'Dotearang Dia' cultivars. The titratable acidity was higher in 'Hoyong' cultivars. The sugar/acid ratio that depended on soluble contents was lower in 'Amaral', 'Picasso', 'Tymaxx' cultivars that showed lower soluble contents. Conclusionally, The firmness that was one of the most important quality character in exporting tomato was higher in European cultivars, but soluble solide and vitamin C content were higher in Japanese cultivars. The significant correlation coefficient values were determined (more than p = 0.05) between a*/b* and other quality characters. The results suggested that surface color was the most suitable character represented tomato qualities. The high coefficient value (r = 0801) between a*/b* and the contents of soluble solids. The firmness and the contents of soluble solids that is the most important factor for exporting showed significant negative correlation (r = -0.611).
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