Ammar nbeaa *(1) Ali Dib(1) and Ali Elkhateeb(2)
(1).Horticulture Department, Agriculture College Tishreen University, Lattakia, Syria.
(2).General Commission for Scientific Agricultural Research, Lattakia, Syria.
(*Corresponding author: Ammar Nbeaa. E-Mail: ammar.nbeaa1991@gmail.com ).
Received:5/04/2023 Accepted:10/08/2023
Abstract:
>The study was carried out during (2020 and 2021) at Setkhiris village which belonging to the countryside of Lattakia Governorate, in citrus orchard containing (24) trees of clementine at the age of 28 years old and grafted on citrumelo as root stock, to study the impact of foliar spray with mixture of macronutrients (N,P,K) , mixture of micronutrients (Fe,B,Mg,Zn) and citric acid , on the physical and chemical properties of clementine, The results showed that the treatments significantly raised fruit volum and the percent of juice compared to the control, at treatment of multi fertilization with mixture of macronutrients, and citric acid spray achieved the highest fruit weight (92.07g) and the highest fruit size(107.5 cm3). mixture of macronutrients, mixture of micronutrients and citric acid treatments gave best results of total soluble solids(11.12%) and The highest value of vitamin C in fruit juice (46.64mg/100ml).
Key words : productive qualities, clementine, citrumelo, Spray on the shoots, Fruit quality.
Full paper in Arabic: pdf