Identification of Metabolites Changes and Quality in Strawberry Fruit: Effect of Cultivation in High Tunnel and Open Field

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Strawberry has gained increasing popularity all over the world due to its fruit properties. This popularity is due to the phytochemicals that strawberries have. The aim of this study is to reveal the effect of cultivation in open field and high tunnel on agromorphological and biochemical properties of strawberries. In this study, fruit yield and fruit quality characteristics of some strawberry varieties grown in open field and high tunnel were investigated. The highest fruit yield, fruit weight and titratable acidity were obtained in high tunnel grown Albion cultivar (542.743 g/plant, 14.927 g/fruit and 1.047%, respectively). While there was no statistical difference between cultivars and treatments in terms of soluble solids content and pH, fruit count was higher in Albion and Kabarla cultivars in both treatments compared to other cultivars (p < 0.05). Among the phenolic compounds, gallic acid was determined to be higher (between 9.246−31.680 mg/100 g) than other phenolics. Considering the organic acid content, malic acid was determined as the dominant organic acid in Kabarla cultivar (870.729 mg/100 g). In addition, in terms of vitamin C content, Rubygem cultivar stood out in both applications. Phenolic compound and organic acid contents varied in terms of varieties and applications. As a result, strawberry fruit, which is an important fruit in terms of fruit quality and consumption diversity, has been found to have high phenolic compounds and organic acid content, although it varies in all varieties and applications.