Effects of foliar spraying calcium on blueberry fruit quality during short-term storage
In order to enhance the quality of blueberry fruit and extend the postharvest storage period,the blueberry variety O'Neill was utilized as the experimental material to investigate the impact of different concentrations of inorganic calcium and organic chelated calcium on the storage quality of blueberry fruit.And the type,concentration,and timing for applying calcium fertilizer on the surface of blueberry leaves were determined.The results showed that the fruit had the highest hardness and the highest soluble solid content when it was ripe by foliar spraying calcium at the young fruit stage+color turning stage+maturity stage.Compared with the control(spraying water),different calcium treatments increased fruit weight per fruit and reduced the postharvest weight loss ratio.After 8 days of postharvest storage,the hardness of blueberry fruits treated with 0.9 g/L EDTA chelated calcium was significantly higher than that of control,and the anthocyanin content of blueberry fruits treated with 0.3 g/L amino acid chelated calcium was the highest.Foliar spraying calcium at the young fruit stage,color turning stage and maturity stage was beneficial to the storage of blueberries.Organic chelated calcium was better than inorganic calcium in improving the internal quality of blueberries.
blueberryfoliar spraying calciumshort term storagefruit quality
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