【摘要】 <正> 山楂(Crataegus pinnatifida Bge.)是我国特产的经济林木,具有很高的经济价值。但山楂的种子繁殖非常困难,从而影响了苗木的大量发展。近年来在用组织培养方法快速繁殖各种观赏、园艺植物和林木方面得到了广泛的研究和应用。更多还原

【Abstract】 In order to overcome the difficulty of propagating the seedling of Crataegus pinnatifida by conventional method, the technique of in vitro culture was adopted, Experiments showed that when IAA and BAP were added to MS medium the differentiation of shoots as well as their growth and propagation were greatly affected, BAP promoted the differentiation of shoots while IAA accelerated their growth. The addition of 0.5 ppm IAA and 1 ppm BAP to MS medium was found to be the best combination for C. pinnatifida propagation, resulting in an increase of 10,5 fold in propagation rate and 6.5 fold in plant height of shoots after 40 days of culture in the medium as compared with the conventional propagation method.更多还原