许多重要的果树品种来源于自发突变体。已有人利用辐照成熟无性系的方法来提高无性繁殖植物的突变频率(P.S.Rog 等,1973)。这种方法已被广泛应用于减少柑桔种子。与常规育种相比,诱变育种可加速品种的开发。通过多种诱变处理(包括抑制根的生长), Many important fruit tree species are derived from spontaneous mutants. Methods of irradiating mature clones have been used to increase the frequency of mutations in vegetative plants (P.S.Rog et al., 1973). This method has been widely used to reduce citrus seeds. Compared with conventional breeding, mutation breeding can accelerate the development of varieties. Through various mutagenesis treatments (including inhibition of root growth),