خوجه ح. ., الخطيب ع. . and حسن ف. . (2021) “Selection of some Hybrids of Poncirus trifoliata (L.) Raf. Tolerant to Freezing Stress by using some Growth Markers and Chemical and Enzymatic Indicators”, Tishreen University Journal -Biological Sciences Series, 43(1). Available at: https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/10478 (Accessed: 21May2024).