Exogenous application of plant growth regulators enhances color and anthocyanin content of cherry fruits
Effects of abscisic acid (ABA) and 1-aminocyclopropane-1-carboxylic acid (ACC) on the improvement of cherry fruit quality parameters were studied. Different concentrations and application time of ABA (300, 400 and 500 ppm; before veraison, during veraison and after veraison) and ACC (200, 300, 500 ppm and 200 ppm with repeated application) were tested on Prunus avium 'Lala Star'. The Cherry-Meter device was used to evaluate the effects of the plant growth regulators in relation to the fruit's intrinsic qualities such as soluble solid content (SSC), chroma and anthocyanin content. Both exogenous applications of ABA and ACC improved quality parameters of 'Lala Star' fruit. The most distinguished effect is the color enhancement of cherry fruits based from the IAD, chroma and fruit anthocyanin content. ABA applied at 300 ppm during and after veraison yielded fruits with more enhanced color. Results also revealed the potential of ACC to enhance color of cherry: the optimum dosage is 200 ppm applied during veraison with repeated applications on the 7th and 14th day after veraison.
Nagpala, E.G.L., Noferini, M., Piccinini, L., Fiori, G., Vidoni, S., Bonora, E. and Costa, G. (2017). Exogenous application of plant growth regulators enhances color and anthocyanin content of cherry fruits. Acta Hortic. 1161, 621-626
Prunus avium, chroma, veraison, abscisic acid, 1-aminocyclopropane-1-carboxylic acid, Cherry-Meter