随着世界果树生产的发展,矮化砧木的研究与利用愈来愈引起人们的重视。特别是近二十多年来,苹果和梨的矮化砧广泛应用于生产,对迅速提高苹果和梨的产量和质量起到了很大的作用。 With the development of fruit tree production in the world, the research and utilization of dwarfing rootstocks have drawn more and more attention. In particular, dwarfing an apple and pear have been widely used in production for more than two decades and have played a significant role in rapidly increasing the yield and quality of apples and pears.