ASKANDER, H. S., ABDULLAH, P. A. and ABDULRAHMAN, R. I. S. (2019) “ESTIMATION SOME GENETIC PARAMETERS, COMBINING ABILITY AND HETEROSIS IN PEA (Pisum sativum) USING HALF DIALLEL CROSS”, Journal of Duhok University, 21(1), pp. 19-28. doi: 10.26682/avuod.2019.21.1.3.