Variation of Nutritional Value of Tomato in Post-Harvest Period

Abstract

Screening tomato genotypes in terms of compounds that affect fruit quality in post-harvest period is an important task for breeders. It is important for selection of genotypes that are characterized by desirable traits, such as prolonged shelf life, the possibility of prolonged storing and fruit firmness and theirs including in breeding programs. Content of beta-carotene, total acid and dry matter have been investigated in tomato fruits in post harvest period for ten tomato genotypes. The fruits have been picked 65 days after anthesis and kept for 60 days. During this time, the samples have been evaluated six times. On the basis of one-way and two-way ANOVA, group comparisons have been performed, by complex contrast comparisons. Regression analysis has been performed for each genotype and calculation of homogeneity of slope coefficients. According to the regression ANOVA concerning beta-carotene content, the results are not significant for any genotype. There was significant total acid content decrease over time for two genotypes (Korona x L-10 F1 i Korona x L-12 F2). In rin genotypes, significant dry matter content decrease over time was found for parents and offspring generations (L -10 9.457, Korona x L-10 F1 31.946 and Korona x L-10 F2 20.074).