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山里红是山楂苗木的优良砧木,其种子一般需要两冬一夏的层积处理才能发芽。为了促使山里红种子提前萌芽,加速山里红实生砧苗的繁殖速度,我所于1979年开始此项试验,在多种试验处理中,最后筛选出冬季加温处理,再转入低温层积的处理方法。第二年春季播种,平均每斤种子出苗258株,为自然层积种子出苗率的68.07％。播种后,当年秋季嫁接,第二年即可出圃,比常规培育山楂苗可缩短1～2年的时间,经济效益可提高1.5倍。
Mountain red Hawthorn seedlings are good rootstocks, the seeds generally require two winter and one summer stratification in order to germinate. In order to promote the early seeds germination of red velvet seedlings and accelerate the propagation speed of wild red seedlings, we started this experiment in 1979. In many kinds of experimental treatments, we finally screened the winter warm treatment and then into the cold stratification treatment . The second year of spring planting, the average seedling per kilogram of 258 plants, the natural seed accumulation rate of 68.07% seed. After sowing, grafted in autumn, the second year can be nursery, hawthorn seedlings than conventional breeding can be shortened 1 to 2 years, the economic benefits can be increased 1.5 times.