杂交稻制种父本负担着供应母本花粉的功能,因而对制种产量起着十分重要的作用。父本健壮与否、花粉数量多少,直接制约着制种产量的高低。父本的壮株足粉与父本的移栽质量关系密切。近年来,我们在制种实践中运用父本开沟栽插技术,对父本栽后的早生快发,收效显著。采用开沟栽插父 Hybrid rice seedparents bear the function of supplying female parental pollen and thus play a very important role in seed production. Parents robust or not, the number of pollen directly restricts the level of seed production. The male parent Zhuangfenfen and the quality of the transplanting of the male parent is closely related. In recent years, we used the technique of paternal ditching and transplanting in the practice of seed production, and achieved remarkable results in the early birth of the male parent. Ditch planted planting father