优质杂交油菜栽培管理水平及父母本行比对制种产量的影响

The Cultivation and Management Levels and Ratios between Parental Lines' Effects on Seed Yield of Hybrid Rapes of Good Quality

在杂交油菜制种栽培中 ,管理水平和父母本行比是影响制种产量的关键技术。管理水平主要影响单株有效角果数 ,父母本行比主要影响结实率 ,进而影响制种产量 ;在管理水平上 ,严防后期倒伏是重要技术。黔油 14号制种的适宜父母本行比为 1∶ 6 ,在良好管理的条件下 ,最高制种产量可达 79.

The ratio between parental lines and management level are two key technologies that affect the yield of producing seed in the course of producing hybrid rape seed. Management level affects mainly the number of efficient horns per plant, and the ratio between parental lines affects mainly the ratio of fruitage, therefore affects the quantity of producing seed. For management level, it is a key step that prevents strictly rape from latter day lodging. The suitable ratio between parental lines for the rape named Qianyou14 is 1∶6, the highest yield of producing seed under good management level can reach 79.8kg.