Mahmood, Yadgar Ali, Masood Saber Mohammed, and Halgurd Nasraden Hassan. 2019. “A Physiological Explanation of Drought Effect on Flag-Leaf Specific Weight and Chlorophyll Content of Barley”. Iraqi Journal of Science 60 (12): 2531-39. https://doi.org/10.24996/ijs.2019.60.12.1.