Abstract:

For 2 types, 10 inbred lines, 25 hybridized combinations were made by using incomplete dual cross. The GCA, SCA of plant height, ear length, ear length, ear diameter, length of forming kernel, ear rows, per row kernels, plot yield, forming kernel rate, 100-kernel weight, forming kernel rate has been analyzed in this paper. The result indicated that with the adding of 5003 inbred lines genetic material, combining ability of new inbred lines which from Reid inbred lines*PN inbred lines has been increased; using the same breeding method , combining ability of new inbred lines is dependent on the basic materials of this inbred lines; selected the excellent from the excellent basic materials (excellent*excellent),it can make the combining ability effect of new inbred lines exceeded its parent and accumulated in new inbred lines.