期刊
HORTICULTURAE
卷 9, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/horticulturae9030299
关键词
calcium chloride; calcium-silicate; firmness; organic acids; phenolic compounds; Prunus persica; sugars
类别
This study investigated the effect of pre-harvest foliar calcium application on fruit quality, primary metabolite profile, antioxidant activity, and phenolic compounds of the 'Lemonato' peach. The results showed that the different calcium treatments had no significant effect on the fruit quality characteristics of this peach variety. The response of fruit quality, metabolites, and phenolic compounds to organic calcium and calcium-silicate treatments varied among different orchards, suggesting the involvement of genetic or environmental factors.
'Lemonato' is a Greek peach melting-flesh white-flesh cultivar with high nutritional value highly appreciated by the consumers. This study aimed to evaluate the effect of pre-harvest foliar calcium application on fruit quality, primary metabolite profile, antioxidant activity, total phenolic content, and phenolic profile of the 'Lemonato' peach, clone 'Stamatis'. The experiment was conducted for two years, 2019 and 2020, in two commercial orchards at Kato Lehonia and Agios Vlasios regions, central Greece, where the 'Lemonato' clone 'Stamatis' is traditionally cultivated. The treatments were organic calcium (Ca), calcium-silicate in nanoparticles (Ca-Si), and calcium chloride (CaCl2). Foliar application of the different Ca formulations, commonly used as a horticultural practice, were not effective at improving the fruit quality characteristics in this clone, which is characterized by fruit softening during ripening. The study revealed the sugars and organic acid composition and phenolic profile of the 'Lemonato' peach, clone 'Stamatis'. Peach fruit quality, primary metabolites, and phenolic compounds of the two orchards showed a different response to organic Ca and Ca-Si, indicating that genetic or environmental factors may also be involved. A higher concentration of organic Ca and CaCl2 increased the peach fruit phenolic compounds content and the total antioxidant activity, improving the fruit nutritional quality.
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