一、试验目的玉米自交系是选育自交系间杂交种的原始材料。判断玉米自交系的优劣,首要条件是它的一般配合力的高低。为了了解现有国内外优良玉米自交系的配合力,以便有依据的选配优良杂交种,特进行本试 First, the purpose of the experiment Maize inbred lines is the selection of hybrids between inbred lines of the original material. To determine the merits of corn inbred lines, the first condition is the level of its general combining ability. In order to understand the combining ability of the existing domestic and foreign excellent maize inbred lines, in order to be based on the selection of excellent hybrids, especially for this test