M. Ilchovska Abstract. For the purposes of preliminary evaluation of the combining ability for grain yield of 12 mutant maize lines a top cross method for early testing and the mathematical model of Savchenko(1993) for analysis of the general combining ability and specific combining a

N. Petrovska Abstract. The present study shows the results from testing experimental hybrids for grain yield which were obtained by the partial diallele system by Savchenko (1966, 1978) in 2004. General combining ability (GCA) and specific combining ability (SCA) of 10 late inbred mai