Al-Sawaf,M. D. , and Abdul-Qadder,A. H. . "Effect of growth retardant Paclobtrazol and Seaweed extract Nap on growth for Three types of turf grasses seed", Kirkuk University Journal for Agricultural Sciences (KUJAS), 7, 3, 2016, 1-17. doi: 10.58928/ku16.07301