S. A. Al-Saffar, R. and K. H. Al-Sawaf, Z. 2012. Estimation of Heterosis and Heritability in Bread Wheat (Triticum aestivum L.). Rafidain Journal of Science. 23, 6 (Sep. 2012), 27–38. DOI:https://doi.org/10.33899/rjs.2012.59603.