一种简化的油菜杂交F1种子的生产方法

安全有效的制种方法是油菜杂交种应用的关键。通过回交转育获得抗（耐）磺酰脲类除草剂的自交不亲和系,将其作为杂交种父本。父本因其具有自交不亲和特性,自交不结实;因其具有抗（耐）磺酰脲类除草剂特性,在用磺酰脲类除草剂进行母本化学杀雄时,不受化学杀雄剂影响。因此,可以将父本与不育系或者化学杀雄的母本材料混合播种,实现杂交种父、母本的混播混收。通过本文提出的杂交制种方法,只要选育出兼有抗（耐）磺酰脲类除草剂和自交不亲和特性的父本,即可进行杂交种的快速组配。该方法将父、母本混播混收,操作简单,节约了劳动成本,提高了杂交种制种效率。

A Simplified Production Method of Hybrid F1 Seeds in Rapeseed

Safe and effective F₁ seed production method is the key to hybrid production in rapeseed. Father parent lines with tribenuron-methyl resistance (or tolerance) and self-incompatiblity can be developed by means of backcross breeding. In the F₁ hybrid seed production by using tribenuron-methyl as the male sterility induction agent, the father parent lines have no seedset by self-pollination because of their self-incompatibility, and are not affected by the chemical agent because of their tribenuron-methyl resistance (or tolerance). Therefore, the parental lines can be mixed sowing and the seeds can be mixed harvesting. Using the method we proposed, if the lines with tribenuron-methyl resistance (tolerance) and self-incompatiblity are already developed, hybrid breeding can be carried out immediately. It saves labor costs, improves seed production efficiency and increases seed purity because of the mixed sowing and mixed harvesting.