Abdullah, Ahmad, & Afrah Abdul Karim Abdul Karim.
" Evaluation of F1S’ , F2S’ Hybrids , Heterosis , and Inbreeding Depression of Maize (Zea mays L.)." <em>Tikrit Journal for Agricultural Sciences مجلة تكريت للعلوم الزراعية</em> [Online], 19.1 (2019): 1-17. Web. 14 Aug. 2021