北海道荞麦1987年引入崇信县试种后,增产率高达98.5%,引起社会各界关注。但荞麦为常异花授粉作物,在新品种尚未推开,新老品种交替种植的情况下,如何保持该品种的优良种性,是摆在种子部门面前的一大难题。鉴于我县甜荞无春种习惯,播种上后只开花不结实,在夏播繁种有困难的情况下,特提出春繁保纯方案,就其播期、播量、适种区、去杂保纯等技术措施进行了探讨,摸索出了一条保持北海道荞麦原种性的途径,解决了大田生产用种问题。 After Hokkaido buckwheat was introduced into Chongxin County in 1987, its yield increase rate was as high as 98.5%, arousing the public’s attention. However, buckwheat is an evergreen pollination crop. Under the circumstance that new varieties have not yet been pushed open and the new and old varieties are alternately planted, how to maintain the fine varieties of the varieties is a major challenge before the seed departments. In view of the county spring buckwheat no spring habit, after sowing only flowering is not strong, in the summer sowing difficulties are the case, the special spring program to protect pure, on its sowing date, sowing, suitable area, to miscellaneous Pure and other technical measures were explored to explore a way to maintain the original nature of buckwheat in Hokkaido to solve the problem of field production and species.