Effect of Pre-Harvest Treatments by Foliar Spraying with Yeast Extract and Ascorbic Acid and their Interactions on Production and Quality characteristics of pear trees var. (Coscia) M. . مجلة الجامعة [Internet]. 2022 Mar. 22 [cited 2026 Jun. 6];4(14). Available from: https://journal.hama-univ.edu.sy/huj/article/view/749