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引言玉米杂交种做为-种高产的种子,正在被国内外广泛地应用,而每一个杂交种杂交优势的强弱,特别是它的产量性状的好坏及稳定程度,除取决于亲本自交系的配合力外,与种子的典型性和纯度有密切关系。
Introduction As a kind of high-yielding seeds, corn hybrids are being widely used at home and abroad, and the hybrid vigor of each hybrid, especially its yield and stability, depends not only on the parental selfing Department of the combining power, and the seed of the typical and purity are closely related.