Soulaf Al-Jaramany (1)* and Maher Hassan (1)
(1). Department of Horticultural Sciences, Faculty of Agriculture, Damascus University, Damascus, Syria.
(*Corresponding author: Soulaf Al-Jaramany E-Mail soulaf.aljaramany@gmail.com).
Received: 22/04/2022 Accepted:21/09/2022
Abstract:
The research was carried out in Rankos sub-district of Al-Tal district in Damascus countryside governorate during two years -2020-2021. The trees were sprayed with salicylic acid at the following concentrations (0, 50, 100, 200 ppm). Each treatment contained 9 trees of 8 years of age, and the experiment was designed according to randomized complete blocks.Where the research aimed to study the effect of spraying with the growth regulator salicylic acid on some growth and production characteristics of the peach tree and some quality criteria for its fruits. The results of the vegetative growth indicators showed that the foliar spraying process with salicylic acid improved all the studied indicators, so the average length of the shoots increased to reach (73.20 cm) compared to the control (55.00 cm), but the differences were not significant. The results also showed an increase in peach tree production by (16.5, 43.5,57.57%) for spraying treatments (50, 100, 200 ppm) respectively compared to the control (40.00 kg/tree). 5.13 kg/cm² for treatments (50, 100, 200ppm), respectively, compared to the control (4.67 kg/cm²). And the calcium content of fruits increased, as it reached the highest value (1.16%) at the concentration of 100 ppm of salicylic acid compared to the control (0.65)%.The percentage increase in the total soluble solids concentration of the treated fruits was 100 ppm (10.00%) compared to the control (7.20%).
Key words: peach (Prunus persica , Dixy Red), salicylic acid, growth, production, quality.
Full paper in Arabic: pdf