山东省牟平县水道镇果树技术员吕书玲,经多年研究探索出一套桃苗当年育砧、当年嫁接、当年出圃的新技术。他培育的砧木不缺株断垄,当年嫁接的桃苗,一般高80～100厘米,秋后即可出圃栽植。其经验是:一、种子处理 将当年采收的山桃种子择优去劣后,于封冻时把选好的种子放在70～80℃的热水中浸泡24小时后,捞起置于筐中,按10厘米左右的厚度摊平,在室外冷冻2～3天。然后再用同样温度的热水浸泡12小时,又冷冻2～3天,再用细沙将种子 Lu Shu-ling, a fruit tree technician at Shuipu Town, Muping County, Shandong Province, explored a set of new techniques for grafting peach seedlings, then grafting, and then nursery. He cultivated the rootstock is no shortage of broken ridge, then grafted peach, generally high 80 to 100 cm, after the autumn can be planted nursery. The experience is: First, the seed treatment will be the year to harvest the preferred selection of offal to the poor, in the frozen when the selected seeds on 70 ~ 80 ℃ hot water soak for 24 hours, picked up in the basket, According to the thickness of about 10 cm flatten, outdoor 2 to 3 days frozen. And then soaked with hot water at the same temperature for 12 hours, then frozen for 2 to 3 days, and then fine sand to seed