“Effect of the Amino Acid Tryptophan in the Growth and Yield of Two Hybrid Cucumbers under Unheated Greenhouse Conditions”. Euphrates journal of agricultural science 15, no. 4 (December 5, 2023): 15–24. Accessed November 12, 2026. https://ejs-agri.com/index.php/EJAS/article/view/148.