Abstract
The effects of cultivar and harvest time on the yield, amount of soluble solids, and antioxidant content of five strawberry (Fragaria × ananassa Duch.) genotypes were investigated. The three cultivars and two breeding selections were cultivated in a greenhouse. The yields of the five genotypes were compared, and contents of total anthocyanins, total phenolic acids, soluble sugars and organic acids were analyzed from February to May 2014. The breeding selection San × Aki 2 produced the highest yield. Total amounts of anthocyanins, sucrose, glucose, and fructose were greatest in February and slowly decreased subsequently. Total amounts of phenolic and organic acids varied depending on the month of observation for all cultivars and selections. Total anthocyanin content was the highest in ‘Seolhyang’ strawberry fruits in February and in the breeding selection San × Seol 13 from March to May. The breeding selection San × Aki 2 showed notably high total phenolic acid levels. Soluble sugars decreased over time, with the highest sucrose content found in ‘Seolhyang’, the highest glucose content in ‘Santa’, and the highest fructose content in San × Aki 2. The highest citric acid content was found in ‘Santa’, and the highest malic acid content in San × Seol 13. The sugar/acid ratio was highest in ‘Seolhyang’ and gradually declined over time. The breeder selections San × Aki 2 and San × Seol 13 showed particular promise for their high yields and high concentrations of antioxidant phytochemicals.
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Winardiantika, V., Lee, Y.H., Park, N.I. et al. Effects of cultivar and harvest time on the contents of antioxidant phytochemicals in strawberry fruits. Hortic. Environ. Biotechnol. 56, 732–739 (2015). https://doi.org/10.1007/s13580-015-0052-y
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DOI: https://doi.org/10.1007/s13580-015-0052-y