Quality Changes in Tomato Fruits Caused by Genotype and Environment Interactions
2017
Park, M., Hyundai Seed Co., Yeoju, Republic of Korea | Chung, Y.S., Chungnam National University, Daejoen, Republic of Korea | Lee, S., Sejong University, Seoul, Republic of Korea
Bred and grown around the world, tomato (Solanum spp.) has highly valuable fruits containings various anti-oxidants such as lycopene, flavonoids, glutamine, and beta-carotene. Several studies have explored, way in which to enhance the growth, management and quality of tomato, we focus on the management of growth for yield rather than quality. The expression of superior agronomic traits depends on where cultivars are grown. We evaluated 10 cultivars grown in three environment for their lycopene. HTL3137 (70.48 mgㆍkg-1), which was grown in Yoeju in spring/summer, contained the highest lycopene content, while HTL10256 (20.9 mgㆍkg-1), which was grown in Suwon in spring/summer, contain the least lycopene.Correlations between color components and lycopene content varied according to growing location and season. In spring/summer-grown tomatoes from Suwon, no significant correlation was observed between any color component (redness [R], greenness [G], blueness [B], luminosity, L*, a*, b*, hue and chroma) and lycopene content. A correlation was observed between B and lycopene content in tomatoes grown in Yeoju during the same season. In tomatoes grown in Yeoju in fall/winter, significant correlations were found between lycopene content and G, luminosity, L*, and hue. Variance in interactions between genotype, environment, and genotype x environment (G x E) using Minimum Norm Quadratic Unbiased Estimate (MINQUE) analysis indicated that lycopene content depends on genotype (51.33%), environment (49.13%), and G x E (21.43%). However, when the Additive Main Effects and Multiplicative Interaction (AMMI) was used, the G x E value was highest.
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