辽宁省苹果产区,习惯用东北山定子作苹果的砧木,当山定子幼苗于苗床抚育一年后,必须从苗床挖起,贮藏在窖里。有些群众育苗并不是在当年起苗贮藏,而是让砧木苗在苗床内越冬,至翌春土壤开始化冻时才进行起苗,这样不但容 Liaoning apple producing areas, accustomed to the northeast mountain stator apples for the rootstock, when the mountain seedling seedlings in the nursery for one year after the need to dig from the seedbed, stored in the cellar. Some people do not raise their seedlings in the same year and store them in stocks. Instead, they make the rootstock seedlings wintering in the seedbed and start to seedlings when the soil begins to thaw next spring.