绵油8号采用优势互补的优良亲本杂交，通过基因重组、分离和连续定向选择培育而成。其主要优点是产籽量高、含油量高、种子和荚果等农艺性状的商品性好，抗逆性强、适应性广。两年省区试平均比对照增产10．7％，其中增产点增产16.22％；种子含油量比对照高4.4个百分点。适宜在川西、川北等地区推广应用。 Mianyou 8 adopts the excellent parental hybrids with complementary advantages and is produced through gene recombination, isolation and continuous selective selection. Its main advantages are high seed yield, high oil content, good agronomic traits such as seed and pod, good resistance, strong adaptability. In the two-year provincial trial, the average yield increased by 10.7% over the control, with the increase of yield increased by 16.22%. The seed oil content was 4.4% higher than that of the control. Suitable in western Sichuan, North Sichuan and other regions to promote the application.