“有了优良品种,即不增加劳动力、肥料,也可获得较多的收成”.选用良种是番薯增产最经济而又最有效的办法.长期以来,番薯选育种主要是应用双亲杂交,经过选育创造新品种.随着科研和生产的不断实践,特别是通过对杂交亲本性状以及它们对子一代的遗传 “With the fine varieties, that is, without increasing labor, fertilizer, can also get more harvest ” .Selection of varieties is the most economical and effective way to increase sweet potato production.For a long time, sweet potato breeding is mainly the application of parental hybrids , After breeding to create new varieties.With the continuous practice of scientific research and production, especially through the hybrid parental traits and their inheritance of the offspring