我站多年来进行土豆高山留种试验证明:高山种植有延缓土豆种性退化的作用,在此基础上如严格进行除杂去劣,即可达到土豆种性复壮的目的。我站高山繁殖的“男爵”品种在县内多点试验结果,平均比当年引入的黑龙江“男爵”退化指数低7.5%,增产35.9%;比当地二水子“男爵” I station for many years to stay potatoes, alpine trials prove that: Alpine planting delay the degeneration of potatoes, on the basis of such as the strict removal of impurities to poor, you can achieve the purpose of rejuvenating potatoes. The number of “baron” breeds that I breed in the mountains was more than that in the county, with an average of 7.5% and a 35.9% increase over the “Baron” degradation index introduced in that year in Heilongjiang Province. Compared with the “Baron”