Improved Yield, Fruit Quality, and Shelf Life in ‘Flame Seedless’ Grapevine with Pre-Harvest Foliar Applications of Forchlorfenuron, Gibberellic Acid, and Abscisic Acid

Abstract

The effect of gibberellic acid (GA3), forchlorfenuron (CPPU), and abscisic acid (ABA) on the parameters of yield of ‘Flame Seedless’ grapes was investigated. The clusters of 8-year-old grapevines were sprayed with solutions: GA3 at 25 mg·dm−3, CPPU at 10 mg·dm−3, and ABA at 300 mg·dm−3, alone or in combinations. GA3 and CPPU treatment increased yield, cluster weight and length, berry weight and diameter, as well as fruit firmness, but reduced the total soluble solids (TSS) and intensity of berry color. Anthocyanin content of berries treated with GA3 and CPPU increased significantly by ABA treatment. Shelf life was increased by GA3 and CPPU treatments, as they decreased the percentage of weight loss, shattering, and unmarketable berries after storing at 20 °C for 7 days. Thus, it can be concluded that the combined use of GA3, CPPU, and ABA may be an efficient practice for fruit enlargement, coloration, and keeping quality in ‘Flame Seedless’ grape.

Effect of Foliar Application of Gibberellic acid, Salicylic acid and Ammonium nitrate on Berry Quality of Ruby Seedless Grape Cultivar

“…This may be due to the delaying effect of GA3 on fruit maturity (Zahedi et al, 2013). Our results concerning the effect of GA3 on TSS have been confirmed by many workers (Kaplan, 2017;Khalil, 2020 andIbrahim et al, 2021). These results came on line with the other papers reported by Alrashdi et al, 2017 andAli et al, 2014), where they found that SA had not a significant effect on TSS.…”

Application of green synthesized magnesium oxide nanoparticles to prolong commercial availability of Vitis vinifera L

“…At room temperature, it was the microbes, and at cold temperature chilling injuries were also observed in the plastic. Khalil (2014) studied the decay loss of grapes in post-harvest treatment of salicylic acid and recorded the effect of temperature on decay loss as the cold temperature slowed down the ripening of fruits and kept them fresh for longer period. As it was evident that the applied MgO NP’s have the antimicrobial properties therefore, the treated grapes were less vulnerable to decay loss by the microbial spoilage.…”

Uses of Gibberellic Acid for Increasing Grape Production

“…Due to use of growth regulators in the first year, berry firmness after storage was unaffected and during second season, spraying with GA3, CPPU and GA3 + CPPU maintain berry firmness than control. Results reported that all treatments are effective for reducing weight loss and decreasing the unmarketable berries as compared to untreated control and pre-harvest application of GA3 and CPPU at the beginning stages of fruit enlargement had a positive impact on yield, berry size, cluster physical characteristics and shelf life of fruit [38]. According to Ahmad et al, (2005), they reported that the application of GA3 is effective for extending shelf life of perlette grape.…”