Ziad Khouri^(1)* , Mohammad Nizam⁽¹⁾ and Kenda Almohammad ⁽¹⁾

(1). Latakia Research Center, General Commission for Scientific Agricultural Research GCSAR, Damascus, Syria.

(^*Corresponding author: Dr. Ziad Khouri. E-Mail: khouriz@yahoo.com).

Received: 29/10/2023             Accepted: 22/02/2024

Abstract: 

The research was carried out in Kafron district in Tartous countryside during the year 2019-2020, with the aim of comparing the effect of thinning in the pre bloom using two concentrations of soybean oil (4%, 6%) and hand thinning by (10, 15 and 20 cm) on peach (July elberta cv.) of vegetative and fruitful growth traits compared control. The results showed that improving vegetative and fruitful growth traits due to treatments especially hand thinning treatment by 20 cm and increasing leaf area, length and diameter shoot (44.77 cm²_, 70.33 cm, 0.75 mm) respectively, also this treatment reduced fruit set percentage and fruit firmness compared other treatments and control (44.22%, 11.12 kg/cm²) respectively. Also increased fruit size, productivity, total soluble solids and total sugar compared control (120.33 cm³_, 41.33 kg/tree, 11.15%, 8.44 microgram/ml glucose) respectively.                                                                           

Key words: Peach, July elberta, Soybean oil, Vegetative growth, Thinning, Productivity. 

Full paper in Arabic: PDF