山楂是我国特产的果树,有很高的经济价值,分布于我国北部,我省也有广泛栽植。山楂中含多种维生素和钙质,V_c含量居果品中的前列,可加工成果酱、罐头、饮料;果实干后入药,有消积化滞、降血压、血脂的功效。但苗木繁殖周期长,嫁接又需要大量砧木和熟练的技术,很不经济。植物组织培养在山楂上应用研究的成功,从根本上解决了这一问题,能使山楂大 Hawthorn is a fruit tree of our country, with high economic value, distributed in the northern part of our country, and our province also has a wide range of planting. Hawthorn contains a variety of vitamins and calcium, V_c content in the forefront of fruit, can be processed into jam, canned food, drink; dried fruit into the drug, there are consumer goods stagnation, lowering blood pressure, blood fat effect. However, the long breeding cycle of seedlings, grafting requires a large number of rootstocks and skilled techniques, it is not economical. The successful application of plant tissue culture on hawthorn has fundamentally solved this problem and can make hawthorn large