Effect of Spraying Gibberellic acid (GA3) , urea and zinc on some production indicators of Orange trees c.v.Valencia. bioscnc [Internet]. 2022 Jan. 18 [cited 2026 May 10];43(6):241-52. Available from: https://journal.latakia-univ.edu.sy/index.php/bioscnc/article/view/11587