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药物诱导玉米远缘杂种（自３３０×ＤＰ）ＢＣ１孤雌生殖，可在早代（Ｐａ２）克服远缘杂种疯狂分离、遗传性不稳定问题。在２～３年内选育出优良的异源种质纯系５４０，并组配出优良杂交种遗单６号（５００３×５４０）。它的主要特点：大穗、高产、优质、抗病、抗倒伏、成熟后茎叶持绿。细胞学鉴定指出，纯系５４０的第２对同源染色体的一条染色体长臂和第５对同源染色体的长臂均显示异染色质末端带，这是二倍体多年生类玉米的带型特征，从而证明，５４０是具有二倍体多年生类玉米种质的纯系。药物诱导孤雌生殖技术为玉米远缘杂交育种开辟了广阔的前景
The drug-induced parthenogenesis of maize distant hybrids (from 330 × DP) BC1 can overcome the problem of wild segregation and hereditary instability in distant hybrids in early generation (Pa2). The elite pure line 540 of elite germplasm was bred in two to three years, and the elite Hybrid Monascus 6 (5003 × 540) was bred. Its main features: big spike, high yield, high quality, disease resistance, lodging resistance, ripe stems and leaves green. Cytological identification indicated that the long arm of one chromosome long arm and the fifth pair of homologous chromosomes of the second pair of homologous chromosomes of pure line 540 all showed the heterochromatic end band, which is the belt type characteristic of diploid perennial maize , Which proves that 540 is a pure line with diploid perennial corn germplasm. Drug-induced parthenogenesis has opened up broad prospects for maize distant hybridization